hopf Elektronik GmbH 6844, 6844RC Technical Manual

Valid for System 6844(RC) with FIRMWARE

Version: 03.xx

Industriefunkuhren

_____________________________________________________________

Technical Manual

System 6844 and 6844RC

(GPS and Sub-Master)

For Housing Versions

1U / 3U / Table / Wall

ENGLISH

Version: 03.00 - 17.12.2012

_____________________________________________________________

2 / 157 System 6844(RC) - V03.00

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Elektronik GmbH

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

INPORTANT NOTES

Operational Reliability

Disregard may cause damages to persons or material.

Functionality

Disregard may impact function of system/device.

Information

Notes and Information.

Version number (Firmware / Manual)

THE FIRST TWO DIGITS OF THE VERSION NUMBER OF THE TECHNICAL MANUAL AND

THE FIRST TWO DIGITS OF THE FIRMWARE VERSION MUST COMPLY WITH
EACH OTHER. THEY INDICATE THE FUNCTIONAL CORRELATION BETWEEN DEVICE AND
TECHNICAL MANUAL.

THE DIGITS AFTER THE POINT IN THE VERSION NUMBER INDICATE CORRECTIONS IN

THE FIRMWARE / MANUAL THAT ARE OF NO SIGNIFICANCE FOR THE FUNCTION.

Downloading Technical Manuals

All current manuals of our products are available free of charge via our homepage on the In­ternet.

Homepage: http://www.hopf.com
E-mail: [e-mail]

Symbols and Characters

System 6844(RC) - V03.00 3 / 157

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Elektronik GmbH

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SERVICE RELIABILITY

Safety regulations

The safety regulations and observance of the technical data serve to en­sure trouble-free operation of the device and protection of persons and
material. It is therefore of utmost importance to observe and compliance
with these regulations.

If these are not complied with, then no claims may be made under the
terms of the warranty. No liability will be assumed for any ensuing dam­age.

Safety of the device

This device has been manufactured in accordance with the latest techno­logical standards and approved safety regulations

The device should only be put into operation by trained and qualified staff.
Care must be taken that all cable connections are laid and fixed in posi­tion correctly. The device should only be operated with the voltage supply
indicated on the identification label.

The device should only be operated by qualified staff or employees who
have received specific instruction.

If a device must be opened for repair, this should only be carried out by
employees with appropriate qualifications or by

hopf

Elektronik GmbH.

Before a device is opened or a fuse is changed all power supplies must
be disconnected.

If there are reasons to believe that the operational safety can no longer be
guaranteed the device must be taken out of service and labelled accord­ingly.

The safety may be impaired when the device does not operate properly or
if it is obviously damaged.

CE-Conformity

This device fulfils the requirements of the EU directive 2004/108/EG "Elec-

requirements of the EU directive - especially with regard to protection of health and safety for
the operator and the user - and may be released for sale within the common markets.

4 / 157 System 6844(RC) - V03.00

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Elektronik GmbH

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

tromagnetic compatibility" and 2006/95/EG "Low voltage equipment".
Therefore the device bears the CE identification marking

(CE = Communautés Européennes = European communities)

The CE indicates to the controlling bodies that the product complies with the

TABLE OF CONTENTS

Contents Page

1 Description of System 6844 and 6844RC .................................................................. 11

1.1 Difference between Systems 6844 and 6844RC ..................................................... 13

1.2 Structure of Housing Options ................................................................................... 14

1.2.1 Differences between the Housing Options ........................................................................ 14

1.2.2 System Design 6844(RC) in 19 inch Rack 3U/42HP and 3U/84HP .................................. 15

1.2.2.1 19 Inch Rack 3U/42HP and 3U/84HP ......................................................................................... 17

1.2.2.2 Display and Keypad .................................................................................................................... 18

1.2.2.3 System-Bus 6000 ....................................................................................................................... 18

1.2.2.4 Slots for Function Boards............................................................................................................ 18

1.2.3 System Design 6844(RC) in 19 inch Rack 1U/84HP (Slim Line) ...................................... 19

1.2.3.1 19 Inch Rack 1U/84HP ............................................................................................................... 20

1.2.3.2 Display ........................................................................................................................................ 20

1.2.3.3 Keypad........................................................................................................................................ 20

1.2.3.4 Status LEDs ................................................................................................................................ 21

1.2.3.5 System-Bus 6000 ....................................................................................................................... 21

1.2.3.6 Function Board Slots .................................................................................................................. 22

1.2.3.7 Temperature-controlled Forced Ventilation ................................................................................. 22

1.2.4 System Design 6844(RC) in ½ 19 inch Table Top Housing 3U/42HP .............................. 23

1.2.4.1 ½ 19 Inch Table Top Housing 3U/42HP ..................................................................................... 24

1.2.5 System Design 6844(RC) in ½ 19 inch Wall Housing 3U/42HP ........................................ 24

1.2.5.1 ½ 19 Inch Wall Housing 3U/42HP .............................................................................................. 25

1.2.5.2 Slot for a Function Board ............................................................................................................ 25

1.3 Quick Install ............................................................................................................. 26

2 System 6844(RC) Synchronization ............................................................................ 27

2.1 Summary / Synchronization Source Settings ........................................................... 27

2.1.1 Synchronisation via GPS ................................................................................................... 27

2.1.2 Synchronization via Serial Interface ................................................................................... 27

2.1.3 Synchronisation via Serial Interface with High-Accurate PPS ........................................... 28

2.1.4 Synchronization via DCF77 Pulse - CET / WORLDWIDE ................................................. 28

2.1.4.1 Operation in the CET Time Zone (Europe) ................................................................................. 29

2.1.4.2 Operation in a different Time Zone (Worldwide) ......................................................................... 29

3 Installation ................................................................................................................... 30

3.1 System 6844(RC) in 3U / Table-Top / Wall - Housing .............................................. 30

3.1.1 Installation of the 19 Inch 3U Rack .................................................................................... 30

3.1.2 Installing the Table-Top Housing ....................................................................................... 30

3.1.3 Mounting the Wall Housing ................................................................................................ 31

3.1.4 Earthing .............................................................................................................................. 31

3.1.5 AC Power Supply ............................................................................................................... 31

3.1.5.1 Safety and Warning Instructions ................................................................................................. 31

3.1.5.2 Power Supply Unit Specifications ............................................................................................... 32

3.1.5.3 Fusing ......................................................................................................................................... 32

3.1.6 DC Power Supply (Option) ................................................................................................. 32

3.1.6.1 Power Supply Unit Specifications ............................................................................................... 33

3.1.6.2 Fusing ......................................................................................................................................... 33

3.1.7 Synchronization Source Connection .................................................................................. 33

3.1.7.1 GPS Antenna Equipment ............................................................................................................ 33

3.1.7.2 Serial String ................................................................................................................................ 33

3.1.7.3 PPS (Pulse per second).............................................................................................................. 33

3.1.7.4 DCF77 Pulse .............................................................................................................................. 33

3.1.8 COM0 / COM1 Serial Interfaces Connection ..................................................................... 34

3.1.9 DCF77 Antenna Simulation (77.5kHz) Connection ........................................................... 34

3.1.10 Function Boards Connection / Input- and Output Modules ................................................ 34

3.2 System 6844(RC) in 1U Slim Line Housing ............................................................. 35

3.2.1 Installation of the 19 Inch Rack .......................................................................................... 35

System 6844(RC) - V03.00 5 / 157

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TABLE OF CONTENTS

3.2.2 Earthing .............................................................................................................................. 35

3.2.3 AC Power Supply ............................................................................................................... 35

3.2.3.1 Safety and Warning Instructions ................................................................................................. 36

3.2.3.2 Power Supply Unit Specifications ............................................................................................... 36

3.2.3.3 Fusing ......................................................................................................................................... 36

3.2.4 DC Power Supply (Option) ................................................................................................. 37

3.2.4.1 Power Supply Unit Specifications ............................................................................................... 37

3.2.4.2 Fusing ......................................................................................................................................... 37

3.2.4.3 Reverse Voltage Protection ........................................................................................................ 37

3.2.5 Synchronization Source Connection .................................................................................. 38

3.2.5.1 GPS Antenna Equipment ............................................................................................................ 38

3.2.5.2 Serial String ................................................................................................................................ 38

3.2.5.3 PPS (Pulse per second).............................................................................................................. 38

3.2.5.4 DCF77 Pulse .............................................................................................................................. 38

3.2.6 COM0 / COM1 Serial Interfaces Connection ..................................................................... 39

3.2.7 Error Relays Connection .................................................................................................... 39

3.2.8 DCF77 Antenna Simulation (77.5kHz) Connection ........................................................... 39

3.2.9 Function Boards Connection / Input- and Output Modules ................................................ 39

4 Commissioning ........................................................................................................... 40

4.1 General Procedure .................................................................................................. 40

4.2 Switching on the Operating Power Supply ............................................................... 40

4.3 Display after System Start/Reset (Firmware) ........................................................... 41

4.3.1 Standard Display without Valid Time ................................................................................. 41

4.3.2 Standard Display with Valid Time ...................................................................................... 41

4.3.3 Standard Display with Valid Time and Active ERROR-Byte .............................................. 42

4.4 Keypad Functions .................................................................................................... 43

4.4.1 Keypad Layout ................................................................................................................... 43

4.4.2 Key Assignment ................................................................................................................. 43

4.4.3 Keypad Inputs / Main Menu Activation............................................................................... 44

4.5 Initialization ............................................................................................................. 44

5 System Parameterization and Operation................................................................... 45

5.1 Menu Structure ........................................................................................................ 45

5.2 SET Menu - Basic Settings System 6844(RC) ......................................................... 47

5.2.1 Fail-safe Storage of Data Entries ....................................................................................... 47

5.2.2 Input Time / Date ................................................................................................................ 47

5.2.3 Input Local Time to UTC Time Offset (Time Zone) ............................................................ 48

5.2.4 Input Daylight Saving Time (DST) Changeover ................................................................. 49

5.2.5 Input Position (GPS only) ................................................................................................... 50

5.2.6 Input SyncOFF Timer - Delayed Change of Sync.-Status ................................................. 51

5.2.7 Serial Interface Parameters ............................................................................................... 52

5.2.7.1 Selection Frames for Parameters of Serial Interface COM0 ....................................................... 52

5.2.7.2 Selection Frames for Parameters of Serial Interface COM1 ....................................................... 53

5.2.8 LAN Board Parameters (Option) ........................................................................................ 53

5.2.8.1 Selection Frames for LAN Board 1 Parameters .......................................................................... 53

5.2.8.2 Selection Frames for LAN Board 2 Parameters .......................................................................... 54

5.2.8.3 Selection Frame Parameters of the LAN Management Board/Module (System 6844RC only) . 54

5.2.9 Frequency Output (Option) ................................................................................................ 55

5.2.10 Status and Pulse Output .................................................................................................... 55

5.2.11 Selection of the Time Base for the LCD-Display ............................................................... 57

5.2.12 Selection of the Language for the Time Display on the LCD-Display ................................ 57

5.2.13 SYSTEM-Byte .................................................................................................................... 58

5.2.13.1 Synchronization Mode (Sync.-Mode) .......................................................................................... 58

5.2.14 Keyword Function for Keypad ............................................................................................ 59

5.3 SHOW Menu - Display of the System 6844(RC) Base Settings ............................... 60

5.3.1 Satellite Values (GPS only) ................................................................................................ 61

6 / 157 System 6844(RC) - V03.00

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TABLE OF CONTENTS

5.3.2 ERROR-Byte ...................................................................................................................... 62

5.3.3 Position (GPS only) ............................................................................................................ 66

5.3.4 Time Offset (Time Zone) .................................................................................................... 66

5.3.5 Daylight Saving Time (DST) Changeover .......................................................................... 66

5.3.6 SyncOFF Timer - Delayed Change of Sync. Status .......................................................... 67

5.3.7 Serial Interface Parameters ............................................................................................... 68

5.3.7.1 Display Frames for the COM0 Serial Interface Parameters ........................................................ 68

5.3.7.2 Display Frames for the COM1 Serial Interface Parameters ........................................................ 68

5.3.8 LAN Board Parameters ...................................................................................................... 69

5.3.8.1 Display Frames for LAN Board 1 Parameters ............................................................................. 69

5.3.8.2 Display Frames for LAN Board 2 Parameters ............................................................................. 69

5.3.8.3 Display Frames for LAN Management Board Parameters (System 6844RC only) ..................... 70

5.3.9 Frequency Output (Option) ................................................................................................ 71

5.3.10 Status and Pulse Output .................................................................................................... 71

5.3.11 SYSTEM-Byte .................................................................................................................... 71

5.3.12 ADD.Outputs (Digital I/O) ................................................................................................... 72

5.3.13 ADD.Inputs (Digital I/O) ..................................................................................................... 72

5.4 S.CLOCK Menu - Control of Slave Clocks with Function Board 7406 ...................... 73

5.5 INI Menu - System 6844(RC) Extended Settings/Functions ..................................... 73

5.5.1 Display the Firmware Version of Board 6844(RC) ............................................................. 73

5.5.2 Display the PCID (Product Config ID) of Board 6844(RC) ................................................ 73

5.5.3 3D / Position-fix GPS Reception a. Synchronization Mode (GPS only) ............................ 74

5.5.4 DCF77 Pulse (1Hz) / DCF77 Antenna Simulation (77.5kHz) ............................................ 75

5.5.4.1 Signal DCF77.SYS / DCF77 Antenna Simulation (77.5kHz)....................................................... 75

5.5.4.1.1 Display and Set the DCF77.SYS Configuration 75

5.5.4.1.2 Display and Set DCF77.SYS TimeOFF 76

5.5.4.2 Signal DCF77.ADD (Option) ....................................................................................................... 76

5.5.4.2.1 Display and Set DCF77.ADD Configuration 76

5.5.4.2.2 Display and Set DCF77.ADD TimeOFF 76

5.5.5 IRIG-B (Digital) Output ....................................................................................................... 77

5.5.5.1 IRIG Time Code, Structure and Timing Diagram ........................................................................ 77

5.5.5.1.1 IRIG-Bxxx Format Classes in accordance with IRIG Standard 200-04 78

5.5.5.1.2 IEEE1344-1995 78

5.5.5.1.3 AFNOR NFS 87-500 78

5.5.5.2 Display and Set IRIG-B.(1) Configuration ................................................................................... 79

5.5.5.3 Display and Set IRIG-B.(1) TimeOFF ......................................................................................... 79

5.5.5.4 IRIG-B.(2) Configuration/TimeOFF (Option) ............................................................................... 80

5.5.6 Activate LAN Management Board (Board 6844RC only)................................................... 80

5.5.7 Trigger Reset / Default ....................................................................................................... 81

5.5.7.1 Software-Reset (Control Board 6844(RC) only) .......................................................................... 81

5.5.7.2 Hardware-Reset (Complete System) .......................................................................................... 81

5.5.7.3 Trigger the GPS Receiver Default (GPS only) ............................................................................ 81

5.5.7.4 Factory Default (Control Board 6844(RC) only) .......................................................................... 81

6 COM0 / COM1 Serial Interfaces .................................................................................. 82

6.1 Configuration of the Serial Interfaces / Pulse Output ............................................... 82

6.1.1 Serial Transmission Parameters ........................................................................................ 82

6.1.2 Configuration of the Data String (Mode Byte) .................................................................... 84

6.1.2.1 Mode Byte 1 / Bit7 - Local Time or UTC in the Serial Output ...................................................... 85

6.1.2.2 Mode Byte 1 / Bit 6 - Serial Output Second Forerun ................................................................... 85

6.1.2.3 Mode Byte 1 / Bit 5 - Bit 5 currently no function .......................................................................... 85

6.1.2.4 Mode Byte 1 / Bit 4 - Last Control Character at Second Change (On-Time Mark) ..................... 85

6.1.2.5 Mode Byte 1 / Bit 3 - Reverse Control Characters CR and LF .................................................... 85

6.1.2.6 Mode Byte 1 / Bit 2 - Delayed Transmission ............................................................................... 85

6.1.2.7 Mode Byte 1 / Bit1-Bit0 - Data String Transmission Point of Time .............................................. 86

6.1.2.8 Mode Byte 2 / Bit7: Output Mode DATA STRING / PULSES ...................................................... 86

6.1.2.9 Mode Byte 2 / Bit6-Bit0 - Data String Selection .......................................................................... 86

6.1.2.10 Mode Byte 2 / Bit6-Bit0: Pulse Selection .................................................................................... 87

6.1.2.11 Mode Byte 3 / Bit7-Bit0 ............................................................................................................... 88

6.1.3 Serial Data String Request ................................................................................................ 88

6.1.3.1 Serial Requests with ASCII Characters (

System 6844(RC) - V03.00 7 / 157

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hopf

Standard and

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2000) ............................... 88

TABLE OF CONTENTS

6.2 Data String Transmission Points of Time ................................................................. 89

6.3 Data Strings............................................................................................................. 90

6.3.1 General Information about Data Output of Board 6844(RC) ............................................. 90

6.3.2

6.3.3

6.3.4

6.3.5 SINEC H1 ........................................................................................................................... 98

6.3.6 T-String ............................................................................................................................ 100

6.3.7 IBM Sysplex Timer Model 1+2 ......................................................................................... 101

6.3.8 Data String ALOHA .......................................................................................................... 103

6.3.9 SINEC H1 Extended ........................................................................................................ 104

6.3.10 NMEA 0183 - GPRMC (V3.00) ........................................................................................ 106

6.3.11 SAT 1703 Time String ...................................................................................................... 111

6.3.12 NMEA 0183 - GPZDA (V3.00) ......................................................................................... 113

6.3.13 GPS2000 Data String....................................................................................................... 116

8 / 157 System 6844(RC) - V03.00

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Standard String (6021) ............................................................................................. 91

6.3.2.1 Specified Settings ....................................................................................................................... 91

6.3.2.2 Structure ..................................................................................................................................... 91

6.3.2.3 Status ......................................................................................................................................... 91

6.3.2.4 Example ...................................................................................................................................... 92

hopf

2000 - 4 Digit Year Output ........................................................................................ 93

6.3.3.1 Specified Settings ....................................................................................................................... 93

6.3.3.2 Structure ..................................................................................................................................... 93

6.3.3.3 Status ......................................................................................................................................... 94

6.3.3.4 Example ...................................................................................................................................... 94

hopf

Master/Slave-String .................................................................................................. 95

6.3.4.1 Specified Settings ....................................................................................................................... 95

6.3.4.2 Structure ..................................................................................................................................... 96

6.3.4.3 Status ......................................................................................................................................... 97

6.3.4.4 Example ...................................................................................................................................... 97

6.3.5.1 Specified Settings ....................................................................................................................... 98

6.3.5.2 Structure ..................................................................................................................................... 98

6.3.5.3 Status ......................................................................................................................................... 99

6.3.5.4 Example ...................................................................................................................................... 99

6.3.6.1 Specified Settings ..................................................................................................................... 100

6.3.6.2 Structure ................................................................................................................................... 100

6.3.6.3 Status ....................................................................................................................................... 100

6.3.6.4 Example .................................................................................................................................... 100

6.3.7.1 Specified Settings ..................................................................................................................... 101

6.3.7.2 Structure ................................................................................................................................... 101

6.3.7.3 Status ....................................................................................................................................... 102

6.3.7.4 Example .................................................................................................................................... 102

6.3.8.1 Specified Settings ..................................................................................................................... 103

6.3.8.2 Structure ................................................................................................................................... 103

6.3.8.3 Status ....................................................................................................................................... 103

6.3.8.4 Example .................................................................................................................................... 103

6.3.9.1 Specified Settings ..................................................................................................................... 104

6.3.9.2 Structure ................................................................................................................................... 104

6.3.9.3 Status ....................................................................................................................................... 105

6.3.9.4 Example .................................................................................................................................... 105

6.3.10.1 Specified Settings ..................................................................................................................... 107

6.3.10.2 Structure (GPS / Sub-Master) ................................................................................................... 107

6.3.10.3 Status ....................................................................................................................................... 110

6.3.10.4 Example .................................................................................................................................... 110

6.3.11.1 Specified Settings ..................................................................................................................... 111

6.3.11.2 Structure ................................ ................................................................................................... 111

6.3.11.3 Status ....................................................................................................................................... 112

6.3.11.4 Example .................................................................................................................................... 112

6.3.12.1 Specified Settings ..................................................................................................................... 113

6.3.12.2 Structure ................................ ................................................................................................... 114

6.3.12.3 Status ....................................................................................................................................... 114

6.3.12.4 Example .................................................................................................................................... 115

6.3.13.1 Specified Settings ..................................................................................................................... 116

6.3.13.2 Structure ................................ ................................................................................................... 116

6.3.13.3 Status ....................................................................................................................................... 117

6.3.13.4 Example .................................................................................................................................... 117

TABLE OF CONTENTS

6.3.14 IEC-103 (ASDU Type 6) .................................................................................................. 118

6.3.14.1 Specified Settings ..................................................................................................................... 118

6.3.14.2 Structure ................................ ................................................................................................... 119

6.3.14.3 Example .................................................................................................................................... 119

6.3.14.4 Initialization String for IEC-103 (ASDU Type 6) ........................................................................ 120

6.3.15 ABB-SPA Seconds-Clock ................................................................................................ 121

6.3.15.1 Specified Settings ..................................................................................................................... 121

6.3.15.2 Structure ................................ ................................................................................................... 122

6.3.15.2.1 Date and Time String 122

6.3.15.2.2 Second String 123

6.3.15.3 Status ....................................................................................................................................... 123

6.3.15.4 Examples .................................................................................................................................. 123

6.3.15.4.1 Date and Time String 123

6.3.15.4.2 Second String 123

6.3.16 SPT String ........................................................................................................................ 124

6.3.16.1 Specified Settings ..................................................................................................................... 124

6.3.16.2 Structure ................................ ................................................................................................... 124

6.3.16.3 Status ....................................................................................................................................... 125

6.3.16.4 Example .................................................................................................................................... 125

7 6844RC - Functionality ............................................................................................. 126

7.1 RC-Pulses IMP 1-4 and RC-Output 1-4 ................................................................. 127

7.1.1 RC-Pulses IMP 1-4 - Operating ....................................................................................... 129

7.1.2 RC-Pulses IMP 1-4 - Time Status .................................................................................... 129

7.1.3 RC-Pulses IMP 1-4 - Cyclical Pulse ................................................................................. 129

7.1.4 RC-Pulses IMP 1-4 - Daily Pulse ..................................................................................... 130

7.1.5 RC-Pulses IMP 1-4 - Single Pulse ................................................................................... 130

7.1.6 RC-Pulse IMP 1-4 - One Time / Variable Pulse per Weekday ........................................ 132

7.2 LAN Management Board 6844MNG for 3U / Table / Wall Systems ....................... 133

7.3 LAN Management Module 6844MNG for 1U System ............................................. 133

8 Function Boards ....................................................................................................... 134

8.1 Function Boards for System-Bus ........................................................................... 135

8.2 Function Boards .................................................................................................... 135

8.3 Function Boards Summary .................................................................................... 135

8.4 Exchanging a Function Board ................................................................................ 136

8.5 Installation of an Additional Function Board ........................................................... 137

8.6 Removing Function Boards ................................................................................... 137

9 System Indicators / Fault Analysis / Troubleshooting ........................................... 138

9.1 Status and Fault Indicators .................................................................................... 138

9.1.1 Status LEDs ..................................................................................................................... 138

9.1.1.1 "Power" LED (1U Systems only) ............................................................................................... 138

9.1.1.2 "Sync. Status" LEDs (1U Systems only) ................................................................................... 138

9.1.1.3 LED Power Supply Unit (not for 1U) ......................................................................................... 138

9.1.2 LCD-Display ..................................................................................................................... 138

9.1.2.1 System Status on the Display ................................................................................................... 138

9.1.2.2 Number of Satellites (GPS only) ............................................................................................... 138

9.1.2.3 Position Display (GPS only) ...................................................................................................... 139

9.1.2.4 SyncOFF Timer ........................................................................................................................ 139

9.1.2.5 Display of ERROR-Byte ............................................................................................................ 139

9.1.2.6 Settings of the Synchronisation Mode ...................................................................................... 139

9.1.3 Error Relays (1U Systems only - Optional for 3U / Table-Top / Wall) ............................. 139

9.1.3.1 "Power" Relay ........................................................................................................................... 139

9.1.3.2 "Sync" Relay ................................ ................................ ............................................................. 139

9.1.4 Send LED ......................................................................................................................... 140

9.1.5 Auto-Reset Logic (System-Bus) ....................................................................................... 140

9.1.6 Serial Output of Data Telegrams ..................................................................................... 141

9.1.7 RC-Functionality (6844RC Systems only) ....................................................................... 141

System 6844(RC) - V03.00 9 / 157

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TABLE OF CONTENTS

9.2 Error Patterns ........................................................................................................ 141

9.2.1 Complete Failure .............................................................................................................. 141

9.2.2 "Power" / Power Supply LED "ON" - No Display and No Output ..................................... 142

9.2.3 Power LED "ON" - No Display but Valid Signal Output ................................................... 142

9.2.4 Power LED "ON" - Cyclical Flickering of the Displays ..................................................... 142

9.2.5 No GPS Reception / No Synchronization ........................................................................ 142

9.2.6 No DCF77 Antenna Simulation (77.5kHz) / DCF77 Pulse (1Hz) ..................................... 144

9.2.7 No or Incorrect Serial Output ........................................................................................... 144

9.2.8 Incorrect Time Output ...................................................................................................... 144

9.2.9 No Daylight Saving Time (DST) Changeover .................................................................. 145

9.2.10 Output and Function Errors of individual Function Boards .............................................. 145

9.3 Support from the

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Company .......................................................................... 145

10 Maintenance / Care ................................................................................................... 146

10.1 General Guidelines for Cleaning ............................................................................ 146

10.2 Cleaning the Housing ............................................................................................ 146

10.3 Cleaning the Display and Keypad .......................................................................... 146

11 Technical Data .......................................................................................................... 147

11.1 Specific Technical Data for 3U / Table-Top / Wall .................................................. 147

11.2 Specific Technical Data for 1U .............................................................................. 148

11.3 General Technical Data 6844(RC) ......................................................................... 149

11.3.1 Internal System Accuracy ................................................................................................ 150

11.3.2 Signal Outputs .................................................................................................................. 151

12 Appendix ................................................................................................................... 153

12.1 Factory-Default Values .......................................................................................... 153

12.2 GPS (Global Positioning System) .......................................................................... 154

12.3 DCF77 (German Long-Wave Transmitter Frankfurt 77.5kHz) ................................ 155

12.3.1 DCF77 General ................................................................................................................ 155

12.3.1.1 DCF77 Signal Structure ............................................................................................................ 155

12.3.1.2 Advantages and Disadvantages DCF77 ................................................................................... 157

12.3.2 DCF77 Generation by

12.3.2.1 DCF77 Signal Simulation .......................................................................................................... 157

12.3.2.2 DCF77 Pulse (1Hz) ................................................................................................................... 157

hopf

Clocks................................................................................. 157

10 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1 Description of System 6844 and 6844RC

hopf

Systems 6844 and 6844RC offer a broad range of functionality combined with ease of
integration and are suitable for the needs of modern industry and the current computer and
network environment in which these systems are used.

Tried and tested worldwide,
velopment of

hopf

Systems 6844 and 6844RC.

hopf

GPS System 6842 served as the basis for the further de-

In designing the Systems, particular attention was paid to their potential for universal applica­tion combined with an optimal cost-benefit ratio for the different fields of use.

Furthermore, these Systems allow customized solutions to be created quickly and easily to
meet specific project requirements.

Synchronisation (GPS and Sub-Master)

The

hopf_

Systems 6844 and 6844RC are available as GPS systems and also as Sub­Master (Slave) Systems. A GPS System having GPS receiver can also be configured as a
Sub-Master (Slave) System.

Functionality

The functionality of the Systems ranges from the simple emission of serial strings or pulses
to the sophisticated NTP time server with LAN management and monitoring as well as a va­riety of other complex applications.

A range of function boards are available for the respective applications which can be used to
meet almost all customer requirements - from a simple pulse output in the widest possible
variety of hardware applications to the highly accurate NTP time server.

Modularity

In their standard configurations, the Systems already offer appropriate modularity in terms of
the use of different function boards, housings, power supplies and subsequent expandability.

The Systems can also be supplied with additional expansion options. This makes it possible
to easily adapt the Systems in accordance with changing future requirements.

Housing Options

hopf

Systems 6844 and 6844RC are available to the customer in a variety of housing op-

tions to permit their use in almost any application.

Maintenance free

Complete maintenance free (no additional service costs) and high equipment reliability result
in great flexibility and a high degree of availability.

Expansion

The System can be extended using Function Boards which can be added by the customer.
In this way, functionality can be easily upgraded on site at low cost. Function Boards can al­so be exchanged directly on site. Direct account of the potential for subsequent local on-site
expansion by the customer can be taken at the system design stage.

System 6844(RC) - V03.00 11 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

Customized System Structures

Based on the standard system, projects and special designs can be realized at low cost.
For this purpose, please consult the expert team at

hopf

Elektronik GmbH - now with the
almost 40 years of experience in the field of time synchronization - we will be pleased to
help.

Some of the System’s base functions:

 Systems available as GPS and Sub-Master (Slave) Systems
 GPS Systems also usable as Sub-Master (Slave) Systems
 Synchronization is possible with only one satellite (GPS only)
 Synchronisation of Sub-Master (Slave) Systems via different standard signals
 Simple operation via keypad and LCD-display on the front panel
 All cable connections on the rear side (19 inch rack 1U/3U only)
 DC Power Supply (Option)
 Housing with additional earth screw for cables up to 16mm²
 Power input with mains switch (1U only) compliant with IEC/EN 60320-1/C14

and EMI line filter

 Prepared for retrofitting of Function Boards by the customer
 Up to two independent NTP time servers can be implemented on one System
 Two independent serial interfaces (each in RS232 and RS422 format)
 Output of a freely programmable digital IRIG-B pulse
 High freewheel accuracy due to control of the internal quartz base
 Potential isolation of the GPS antenna circuit (GPS only)
 Completely maintenance-free System
 SyncOFF timer (reception failure bypassing) for error message-free operation even in

difficult synchronisation conditions.

 Redundant multiple synchronization signal verification for error-free and leap-free

signal evaluation

 Maintenance-free buffered back-up clock for three days

Additional Functions of System 6844RC

 All settings on Control Board 6844RC can be carried out via a serial remote inter-

face using the

hmc

Remote Software.

 Internal output of 4 highly accurate, freely configurable signals / pulses.
 With an optional LAN Management Board, all settings on the Control Board can

be performed and the System monitored via LAN.

Extension options

 Customer-specific system adaptations for "tailor-made" project solutions.

12 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

In this description, the notation 6844(RC) means that the statements refer
to both Systems.

Subsequent local on-site activation of RC functionality is not possible.

1.1 Difference between Systems 6844 and 6844RC

Both Systems are identical in their basic function and are based on the same hardware plat­form. However, System 6844RC also has more features and options.

System 6844RC is designed for use in conjunction with management systems.
The System can be configured via serial interface and monitored in a network environment

by using a LAN Management Board / Module 6844MNG (SNMP/SYSLOG/e-mail notification)
and configured via the

In the 6844RC version, four additional high-precision, programmable internal pulses are
available, which can be configured exclusively via the

hopf

Management Console (

hmc

hopf

).

Management Console (

hmc

).

The serial connection is made via interface COM0. Optionally, a separate remote interface
can also be integrated into the System so that both interfaces COM0 and COM1 are exclu­sively available for customer applications.

System 6844(RC) - V03.00 13 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

Description

3U

1U

TableTop

Wall

42HP

84HP

84HP

42HP

42HP

2 independent serial interfaces each
with RS232 and RS422 level

(1)

Slots for Function Boards (for Boards
with / without System-Bus)

2 2 2

2

1

(4)

Optional slot extensions for Function

Boards without System-Bus

2

11

(2)

Redundant power supply units (with /
without additional power feed)

optional

System status via LEDs / relays

optional

optional

optional

optional

LAN Management Board / Module
suitable for integration (6844RC only)

Optional slot prepared for LAN Man­agement Board / separate remote
interface (6844RC only)

(3)

(3)

(3)

(3)

Standard voltage

115 /

230V AC

115 /

230V AC

100 -

240V AC

115 /

230V AC

115 /

230V AC

Temperature controlled forced ventila­tion

Local on-site exchange of Control
Boards possible with display and key­pad

Local on-site exchange of power supply
unit possible

Local on-site exchange / installation of
Function Boards possible

Optional

DC power supplies (in­cluding voltage terminal
converted to DC)

24V DC

48V DC

110V DC

220V DC

It is not possible to freely combine all options and extensions.
For technical clarification of specific combinations of equipment features

and functions, please consult the expert team at

hopf

Elektronik GmbH –

we will be pleased to advise you.

1.2 Structure of Housing Options

The following section describes the differences between the housing options.

1.2.1 Differences between the Housing Options

The following table provides a summary of the different functions and extensions of the vari­ous housing options.

(1) Alternative pin terminal design and pin assignment
(2) Standard power supply unit max. 40VA
(3) One optional expansion slot or the serial interface is lost

14 / 157 System 6844(RC) - V03.00

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(4) Second slot available by removing the serial interface

DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.2 System Design 6844(RC) in 19 inch Rack 3U/42HP and 3U/84HP

As standard, the System is assembled in a standard ½ 19" rack (3U/42HP). Optionally, the
System is also available in a 1/1 19" rack (3U/84HP).

The base system consists of the following:

 1/1 resp. ½ 19" module rack 3U
 Supply voltage 115/230V AC – other voltages available
 Voltage input with IEC/EN 60320-1/C14 connection and EMI line filter
 Connection for protection earth (PE) cables up to 16mm²
 System front panel with LCD-Display (2x16), keypad (25 keys)
 Control Board 6844(RC) for:

o Synchronization signal reception and evaluation
o Keypad control
o Display control
o System-Bus control
o Time distribution in the system

 Two independent serial interfaces
 DCF77 antenna simulation (77.5kHz) via BNC connector
 System-Bus with two expansion slots

System 6844(RC) - V03.00 15 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

System front side 3U/42HP:

System rear side / plug-in side 3U/42HP:

System front side 3U/84HP:

System rear side / plug-in side 3U/84HP:

16 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.2.1 19 Inch Rack 3U/42HP and 3U/84HP

As standard, the System is assembled in a standard ½ 19" housing (3U/42HP) for control
cabinet installation.

Optionally, the System is also available in a 1/1 19" rack (3U/84HP) for control cabinet instal­lation.

System 6844(RC) - V03.00 17 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

The lighting is activated by
pressing a key and switch­es off automatically after
approx. 4 minutes with no
action required on the key­pad.

Exceptions with regard to slot selection can be found in Chapter 8 Function
Boards.

1.2.2.2 Display and Keypad

Display
The display consists of a two-line LCD-

Display (Liquid Crystal Display) with 2x16
characters and back-lighting.

For a description of the display functions
please see Chapter 5 System Parameteri-
zation and Operation.

Keypad
The alphanumeric keypad with 25 keys pro-

vides menu-driven operation of the clock
system.

1.2.2.3 System-Bus 6000

System 6844(RC) contains the System-Bus which is made up of Bus Board with VG ledges,
by means of which Control Board 6844(RC) and the Function Boards are connected.

The System-Bus is used to:

 Distribute time information.
 Communicate between Control Board 6844(RC) and Function Boards.
 Transmit the regulated second pulse (PPS). This serves to synchronize the data

output of the installed Function Boards.

 Distribute the regulated DCF77 pulse (generated by Control Board 6844(RC)).
 Continuous auto-reset circuit for ongoing monitoring of the System-Bus Function

Boards in the System.

 Power supply to the installed Boards.

Each active (sending and receiving) Function Board built into the System-Bus has a SEND
LED. This LED indicates which Function Board is active on the System-Bus at the time.

Function Boards that only receive data from the System-Bus do not have a SEND LED.

1.2.2.4 Slots for Function Boards

In System 6844(RC), up to two Function Boards can be installed as standard. In principle,
the slot for each 'Function Board' / 'System-Bus Function Board' is freely selectable.

18 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.3 System Design 6844(RC) in 19 inch Rack 1U/84HP (Slim Line)

The system can be individually configured for various applications due to its partly modular
design and can be easily upgraded or converted to suit changes in the application condi­tions.

The base system consists of the following:

 1/1 19" module rack 1U/84HP (Slim Line)
 Wide-ranging power supply unit from 100-240V AC / 40VA (47-63Hz)

Other input voltages available

 Voltage feed with power switch with connections in accordance with

IEC/EN60320/C14 including EMI line filter

 Connection for protection earth (PE) cables up to 16mm²
 System front panel with LCD-Display (2x16), keypad (20 keys) and status LEDs

System front panel:

 Control Board 6844(RC) for:

o Synchronization signal reception and evaluation
o Keypad control
o Display control
o System-Bus control
o Time distribution in the system

 Two independent serial interfaces
 DCF77 antenna simulation (77.5kHz) via BNC connector

(not available with installed LAN management module)

 System-Bus with two expansion slots

System rear side / plug-in side:

System 6844(RC) - V03.00 19 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

-

-

-

-

-

-

4

4

5

,

0

m

m

/

1

7

.

5

2

"

-

-

-

-

-

-

8

4

H

P

/

8

4

T

E

-

-

-

-

-

-

2

3

0

,

0

m

m

/

9

.

0

6

"

1U/

1HE

The lighting is activated by pressing a key and switches off automatically
after approx. 4 minutes with no action required on the keypad.

1.2.3.1 19 Inch Rack 1U/84HP

1.2.3.2 Display

The display consists of a two-line LCD-Display (Liquid Crystal Display) with 2x16 characters
and back-lighting.

For a description of the display functions please see Chapter 5 System Parameterization
and Operation.

1.2.3.3 Keypad

The alphanumeric keypad with 20 keys provides menu-driven operation of the clock system.

20 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

POWER

ON

Power

Power

(green)

ON The System is in operation
OFF The System is out of operation

(for example, it is switched off, defec­tive or the power supply has failed)

Front side

Rear side

SYNC. STATUS

ON OFF

S y n c .

Sync.

(red)

ON The system is not currently synchro-

nized by the installed Sync.-Source

respectively

Sync.

(green)

ON The system is currently synchronized

by the installed Sync.-Source or the
SyncOFF Timer is active

1.2.3.4 Status LEDs

The 1U System has status LEDs on both the front and rear sides. These allow the System
status to be recognized in the installed condition in the control panel, whilst operating via the
front panel as well as whilst checking the cabling on the rear side of the System.

The LEDs indicate the following System conditions:

1.2.3.5 System-Bus 6000

The System-Bus, consisting of the Bus Board with VG ledges, via which the Control Board
6844(RC) and the Function Boards are connected, can be found in the System 6844(RC).

The System-Bus serves to provide:

 Distribution of the time information.
 Communication between Control Board 6844(RC) and the Function Boards.
 Transmission of the regulated second pulse (PPS). This serves to synchronize the da-

ta output of the implemented Function Boards.

 Distribution of the regulated DCF77 pulse (generated by the Control Board 6844(RC)).
 Circular auto-reset circuit for ongoing verification of the System-Bus Function Boards

to be found in the System.

 Power supply for the installed boards.

Each active Function Board (transmit and receive) which is linked to the System-Bus has a
SEND LED. This LED signals which of the Function Boards is active on the System-Bus.

Function Boards which only receive data from the System-Bus do not have a SEND LED.

System 6844(RC) - V03.00 21 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

Exceptions of the slot selection can be found in Chapter 8 Function Boards

The ventilation apertures on the left and right hand sides must not be cov­ered. Otherwise, active ventilation is ineffective and inadequate convection
and/or thermal coupling with surrounding equipment may cause the tem-

perature to rise above the equipment’s maximum permissible operating

temperature.

1.2.3.6 Function Board Slots

Up to two Function Boards can be implemented in the System 6844(RC) 1U Slim Line.
As a basic principle, the slot can be freely selected for each 'Function Board' / 'System-Bus

Function Board'.

Only boards that have been adapted for the 1U Slim Line System can be used in these slots.
Slots that have been prepared for special functions are identified with the letters "A" and

"B".

1.2.3.7 Temperature-controlled Forced Ventilation

The clock system has two temperature-controlled fans to prevent the operating temperature
rising above the allowed limit as a result of thermal coupling with equipment mounted in the
control panel.

These fans are mounted on the side ventilation apertures and switch in when the tempera­ture in the equipment reaches approx. 45°C.

22 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.4 System Design 6844(RC) in ½ 19 inch Table Top Housing 3U/42HP

In essence, the System consists of the same components as the 3U System, except that the
arrangement is in accordance with the differing requirements of the housing option.

System front side / plug-in side:

System rear side:

System 6844(RC) - V03.00 23 / 157

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Elektronik GmbH

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.4.1 ½ 19 Inch Table Top Housing 3U/42HP

1.2.5 System Design 6844(RC) in ½ 19 inch Wall Housing 3U/42HP

In essence, the System consists of the same components as the 3U System, except that the
arrangement is in accordance with the differing requirements of the housing option.

System front side:

24 / 157 System 6844(RC) - V03.00

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.2.5.1 ½ 19 Inch Wall Housing 3U/42HP

1.2.5.2 Slot for a Function Board

In System 6844(RC), due to the mechanics of the housing, only one Function Board can be
installed in the wall-mounting housing as standard.

System 6844(RC) - V03.00 25 / 157

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DESCRIPTION OF SYSTEM 6844 AND 6844RC

1.3 Quick Install

 Earthing System / connect power supply
 Connection of the GPS Antenna System (GPS only)

and the appropriate synchronisation source for Sub-Master (Slave) Systems

 Switch on power supply
 Input local time and date
 Input difference time
 Input position (GPS only)
 Input changeover point of time S  D
 Input changeover point of time D  S
 Wait for minute change
 Trigger software reset
 Check for correct acquisition of the difference time using the SHOW function (GPS only)
 Check for correct acquisition of the position using the SHOW function
 Check for correct acquisition of the changeover point of time S  D using the

SHOW function

 Check for correct acquisition of the changeover point of time D  S using the

SHOW function

 Trigger hardware reset

The GPS version should be synchronous after less than 30 minutes, the Sub-Master (Slave)
version after less than 5 minutes.

This can be checked by means of the:

 LCD-Display
 System Status LEDs (1U version only)

26 / 157 System 6844(RC) - V03.00

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SYSTEM 6844(RC) SYNCHRONIZATION

Master

Sub-Master (Slave)

Sync.Channel
Menu

GPS

Antenna Signal

Serial

Data string

Serial

Data string+

PPS

DCF77 pulse

CET / worldwide

1.01

TIME

o o o

o

o

1.02

TIME OFFSET

+ - -

-

+

1.03

CHANGEOVER TIME S  D
(Standard time  Daylight
saving time)

+ - -

-

-

1.04

CHANGEOVER TIME D  S
(Daylight saving time 
Standard time)

+ - -

-

-

1.31

SYSTEM-Byte /
Synchronizations-Mode
(Bit2 - Bit0)

000

001

010

011 / 100

2 System 6844(RC) Synchronization

This Chapter describes the various options for synchronizing System 6844(RC).
GPS System 6844(RS) is also referred to as "Master-System". This System variant provides

an internal GPS receiver.
Sub-Master (Slave) Systems are Systems 6844 (RC) that are synchronized by other Sys-

tems such as a Master System 6844 (RC). Depending on the synchronisation mode an addi­tional hardware is required to connect the synchronisation signal to System 6844 (RC).

2.1 Summary / Synchronization Source Settings

System synchronization options and their required settings:

+ Always required
(+) Only when necessary
o Not required - but possible

- Input not possible or no function

2.1.1 Synchronisation via GPS

GPS Clock Systems are synchronized by the time signal transmitted via the GPS satellites.
Therefore the Master System 6844 (RC) provides an internal GPS receiver. For the recep­tion of the GPS signal the installation of an appropriate GPS Antenna System is necessary.
Details about GPS functionality is described in Chapter 12.2 GPS (Global Positioning Sys-
tem).

The time basis received from GPS is based on UTC and does not contain any local time in­formation such as difference time and changeover times. These parameters need to be con­figured for evaluation of the local time in the System.

2.1.2 Synchronization via Serial Interface

On this setting, the
interface. This setting blocks the interface for other types of data communication (e.g. cycli­cal time telegram output).

hopf_

Master/Slave string is transmitted to the clock via the COM1 serial

System 6844(RC) - V03.00 27 / 157

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SYSTEM 6844(RC) SYNCHRONIZATION

Synchronization with the

hopf

Master/Slave string is only possible on

COM1. When synchronization via

hopf

Master/Slave string is set then the
serial parameters for COM1 are set automatically. All other settings of inter­face COM1 are ignored.

PPS input feed is not available on the standard version of this equipment
type. If such an input is required then this must be installed by

hopf

prior to

delivery. Retrofitting by the customer is not possible.

DCF77 pulse input feed is not available on the standard version of this
equipment type. If such an input is required then this must be installed by

hopf

prior to delivery. Retrofitting by the customer is not possible.

Functional Description for Synchronization via Serial Data String

A number of

hopf

radio-controlled clocks or systems can output the serial

hopf

Slave string. This string serves for the synchronization of Sub-Master (Slave) systems. It
contains all the necessary data from the transmitting clock system, such as hour, minute,
second, day, month, year and status information. For the accuracy of the System the control
character EXT (end of text) is transmitted on the second change.

The

hopf

Master/Slave data string can be transmitted every minute but also every second in
order to obtain a better accuracy of the System. The interface parameters for this synchroni­sation mode are firmly adjusted to 9600baud, 8 data bit, no parity an stop bit.

Control Board 6844(RC) evaluates the data received and, following checks for plausibility
and data verification, prepares the data for synchronization.

The highly precise setting of the internal time takes place with the start edge of the ETX,
transmitted exactly on the minute changeover, and the internal quartz base is also readjust­ed after several data strings have been received.

2.1.3 Synchronisation via Serial Interface with High-Accurate PPS

In this synchronisation mode System 6844 (RC) gets, in addition to the serial data string for
the time synchronisation, a PPS (Pulse per second) generated by the Master System. The
time information is adopted form the serial data string in the synchronisation mode "Syn­chronisation via serial interface". The additional PPS determines in this mode the internal
accuracy of the Sub-Master System.

Master/

This mode allows the synchronisation of the Sub-Master System with likely the same accu­racy as the Master System.

2.1.4 Synchronization via DCF77 Pulse - CET / WORLDWIDE

DCF77 time information is transmitted in digital form with the DCF77 pulse. As in the case of
DCF77 antenna simulation (77.5kHz), this signal can be generated by
and therefore can also be used for synchronization worldwide. In the case of the DCF77

pulse (1Hz), the parameters which require to be set by the customer are defined by the se­lected installation location.

For further information about the signals see Chapter 12.3.2.2 DCF77 Pulse (1Hz).

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GPS equipment

28 / 157 System 6844(RC) - V03.00

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SYSTEM 6844(RC) SYNCHRONIZATION

In this synchronization mode the UTC time is a calculated time which is
determined on the basis of the time offset and changeover points of time for
summer time and winter time.

Fixed time offset: Standard time (winter time)  UTC + 1h
Daylight saving time  UTC + 2h

Changeover point of time + current time status (summer or winter time)
are taken from the synchronization signal

Time offset: Standard time (winter time)  Set time offset
Daylight saving time  Set time offset +1h

Changeover point of time + current time status (daylight saving time or
standard time) are taken from the synchronization signal

The use of the DCF77 signal means that the system, in principle, is synchronized with local
time (standard time with ST/WT changeover, if required). Certain points must be noted in or­der for the system to transmit both local time and UTC time correctly.

The DCF77 Transmitter (location: Mainflingen, Frankfurt am Main / Germany) always trans­mits time information as local time (CET/CEST). This means that UTC time is calculated for
DCF77 systems. Two variables are now required in order to convert from local time to UTC
time:

o The time offset between UTC and the valid standard time (winter time) in the

respective time zone

o The changeover points of time between winter time and summer time – pro-

vided that such changeover takes place in the respective time zone

The signal received via the DCF77 antenna contains this required information for the CET
time zones (UTC+1h).

As a result, when configuring, it is necessary to differentiate between system operation in the
CET time zone and system operation as a slave or Sub-Master system for worldwide appli­cation.

2.1.4.1 Operation in the CET Time Zone (Europe)

If the system is configured for operation in the CET time zone, settings for time offset and
changeover points of time are not required or are ignored, since the time offset is fixed and
the DST changeover is controlled by information contained in the synchronization signal.

2.1.4.2 Operation in a different Time Zone (Worldwide)

If the system is configured for worldwide application, in order for UTC time output to be cor­rect, the time offset must be parameterized for the respective time zone. Settings for the
changeover points of time are not required, or are ignored, since the DST changeover is
controlled by the information contained in the synchronization signal.

System 6844(RC) - V03.00 29 / 157

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INSTALLATION

The ventilation apertures on the top and bottom sides must not be
covered. Otherwise passive ventilation (convection) will not be effec­tive and lack of convection and / or thermal coupling with surrounding
equipment may give rise to an excessive equipment operating tem­perature.

At higher temperatures an active cooling / ventilation is recommended.

3 Installation

The following describes the installation of the System hardware.

3.1 System 6844(RC) in 3U / Table-Top / Wall - Housing

3.1.1 Installation of the 19 Inch 3U Rack

The System is assembled in a standard 3U/42HP or 3U/84HP 19" housing for control cabi­net installation (for dimensions see Chapter 1.2.2 System Design 6844(RC) in 19 inch
Rack 3U/42HP and 3U/84HP)

The following steps are to be carried out:

 Place the rack in the control panel and fix to the mounting brackets on the front side of

the rack using 4 screws.

 Ensure that there is sufficient space between the connection side of the rack and the

control panel to allow for the connection of cables to the System.

3.1.2 Installing the Table-Top Housing

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INSTALLATION

 Plug the input connector into the System’s mains

power inlet.

 Connect the input connector to the mains power

supply and switch the line circuit breaker on.

The System 6844(RC) can be damaged if incorrect voltage is connected.

Caution: Never work on an open unit when voltage is applied!
Danger to life!

3.1.3 Mounting the Wall Housing

3.1.4 Earthing

The System 6844(RC) is usually earthed via the PE cable of the power supply.
An additional earth cable (up to 16mm2) for surge protection purposes can be connected by

means of the earth screw located on the System housing.

3.1.5 AC Power Supply

Attention should be paid to the following when connecting the power supply:

 Correct voltage type (AC or DC)
 Voltage level

The power feed is via an input connector with EMI line filter compliant with IEC/EN 60320­1/C14

3.1.5.1 Safety and Warning Instructions

Please read these instructions fully in order to guarantee safe operation of the equipment
and to be able to use all the functions.

System 6844(RC) - V03.00 31 / 157

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INSTALLATION

If the internal fuse (device protection) trips it is highly probable that the
equipment is faulty. In this case the device should be checked in the facto­ry.

Ensure that the external power supply is switched off. When connecting the
supply cable make sure that the polarity is correct and the equipment is
earthed.

 The cable of the power supply is connected using a 2-pole plug

connector with additional earth connection and interlocked with
the System 6844(RC):

+Vin:

Positive pole (contact 1)

–Vin:

Negative pole (contact 2)

PE:

Earth

The System 6844(RC) can be damaged if incorrect voltage is connected.

Earthing:

By default the minus pole (-Vin) and earthing (PE) are connected sys­tem-sided.

The System 6844(RC) is an installation device. Installation and commissioning may only be
carried out by suitably qualified specialist personnel. In doing so the respective country­specific specifications must be observed (e.g. VDE, DIN).

Before commissioning ensure that:

 The power supply has been connected correctly and electrical shock protection is in

place

 The earth wire is connected
 All supply cables are correctly sized and fused
 All output cables are suitably sized or specially fused for the max. output current of

the equipment

 Sufficient convection is guaranteed

The equipment contains life-threatening components and a high level of stored energy.

3.1.5.2 Power Supply Unit Specifications

All AC power supply specifications are described in Chapter 11 Technical Data.

3.1.5.3 Fusing

Pay attention to the correct fusing of the power supply when connecting the System
6844(RC).

The corresponding performance data can be taken from the equipment nameplate. The Sys­tem 6844(RC) is currently fitted with a power supply unit with a power consumption of max.
40VA.

3.1.6 DC Power Supply (Option)

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INSTALLATION

If the internal fuse (device protection) trips it is highly probable that the
equipment is faulty. In this case the device should be checked in the facto­ry.

For PPS input an additional hardware depending on the signal level for
synchronisation is required.

Insofar this option is factory set the connection and the signal level are stat­ed in the supplied manual.

For DCF77 pulse input an additional hardware depending on the signal
level for synchronisation is required.

Insofar this option is factory set the connection and the signal level are stat­ed in the supplied manual.

3.1.6.1 Power Supply Unit Specifications

All DC power supply specifications are described in Chapter 11 Technical Data.

3.1.6.2 Fusing

Pay attention to the correct fusing of the power supply when connecting the System
6844(RC).

The corresponding performance data can be taken from the equipment nameplate. The Sys­tem 6844(RC) is currently fitted with a power supply unit with a power consumption of max.
40VA.

3.1.7 Synchronization Source Connection

Depending on the version different synchronisation signals can be connected to the System
6844 (RC)

3.1.7.1 GPS Antenna Equipment

The GPS antenna equipment coaxial cable is connected to the BNC connector marked "An­tenna" on the control board 6844(RC) of the System. More detailed specifications for the in-

stallation of the antenna equipment, such as cable lengths and types, can be found in the
manual "Antenna Equipment GPS".

3.1.7.2 Serial String

The synchronisation string is always connected to interface COM1. The correct signal level
has to be considered.

3.1.7.3 PPS (Pulse per second)

3.1.7.4 DCF77 Pulse

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INSTALLATION

SUB-D female Connector 25-pole

COM0

Pin

Assignment

1

n.c.

2

TxD RS232c

3

RxD RS232c

4

n.c.

5

n.c.

6

n.c.

7

0V GND

8

n.c.

9

n.c.

10

n.c.

11

-TxD RS422 (low active)

12

+TxD RS422 (high active)

13

n.c.

14

n.c.

15

n.c.

16

n.c.

17

n.c.

18

n.c.

19

n.c.

20

n.c.

21

n.c.

22

-RxD RS422 (low active)

23

+RxD RS422 (high active)

24

n.c.

25

n.c.

SUB-D female Connector 9-pole

COM1

Pin

Assignment

1

GND

2

TxD RS232c

3

RxD RS232c

4

+RxD RS422 (high active)

5

-RxD RS422 (low active)

6

n.c.

7

n.c.

8

-TxD RS422 (low active)

9

+TxD RS422 (high active)

3.1.8 COM0 / COM1 Serial Interfaces Connection

The serial interfaces are assigned as follows:

n.c.: not connected

3.1.9 DCF77 Antenna Simulation (77.5kHz) Connection

The antenna cable of the DCF77 System to be synchronized is connected to the System’s
BNC socket marked "DCF-Sim". A type RG59 coaxial cable is recommended as standard

for the connection between

3.1.10 Function Boards Connection / Input- and Output Modules

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The necessary steps to connect the Function Boards should be consulted in the respective
technical specifications of the Function Boards present in the system.

Elektronik GmbH

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Systems.

INSTALLATION

The side ventilation apertures on the right and left hand sides must not
be covered. Otherwise active ventilation will not be effective and lack of
convection and / or thermal coupling with surrounding equipment may
give rise to an excessive equipment operating temperature.

I O

 Check that the mains power switch is in position " 0 "

(= off).

 Plug the input connector into the System’s mains

power inlet.

 Connect the input connector to the mains power

supply and switch the line circuit breaker on.

The System 6844(RC) can be damaged if incorrect voltage is connected.

3.2 System 6844(RC) in 1U Slim Line Housing

3.2.1 Installation of the 19 Inch Rack

The System is assembled in a 1U/84HP 19" housing for control cabinet installation (meas­urement see Chapter 1.2.3.1 19 Inch Rack 1U/84HP).

The following steps are to be carried out:

 Place the rack in the control panel and fix to the mounting brackets on the front side of

the rack using 4 screws.

 Ensure that there is sufficient space between the connection side of the rack and the

control panel to allow for the connection of cables to the System.

3.2.2 Earthing

The System 6844(RC) 1U Slim Line is usually earthed via the PE cable of the power supply.
An additional earth cable for surge protection purposes can be connected by means of the

earth screw located on the rear side of the System housing.

3.2.3 AC Power Supply

The Systems’ standard AC power supply unit is described here. However, the connection
data on the nameplate of the respective unit is always applicable.

Attention should be paid to the following when connecting the power supply:

 Correct voltage type (AC or DC)
 Voltage level

The power feed is via an input connector with EMI filter compliant with IEC/EN 60320-1/C14

System 6844(RC) - V03.00 35 / 157

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INSTALLATION

Caution: Never work on an open unit when voltage is applied!
Danger to life!

If the internal fuse (device protection) trips it is highly probable that the
equipment is faulty. In this case the device should be checked in the facto­ry.

3.2.3.1 Safety and Warning Instructions

Please read these instructions fully in order to guarantee safe operation of the equipment
and to be able to use all the functions.

The System 6844(RC) is an installation device. Installation and commissioning may only be
carried out by suitably qualified specialist personnel. In doing so the respective country­specific specifications must be observed (e.g. VDE, DIN).

Before commissioning ensure that:

 The power supply has been connected correctly and electrical shock protection is in

place

 The earth wire is connected
 All supply cables are correctly sized and fused
 All output cables are suitably sized or specially fused for the max. output current of

the equipment

 Sufficient convection is guaranteed

The equipment contains life-threatening components and a high level of stored energy.

3.2.3.2 Power Supply Unit Specifications

All AC power supply specifications are described in Chapter 11.2 Specific Technical Data
for 1U.

3.2.3.3 Fusing

Pay attention to the correct fusing of the power supply when connecting the System
6844(RC) 1U Slim Line

The corresponding performance data can be taken from the equipment nameplate. The Sys­tem 6844(RC) 1U Slim Line is currently fitted with a power supply unit with a power con­sumption of max. 40VA.

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INSTALLATION

Ensure that the external power supply is switched off. When connecting the
supply cable make sure that the polarity is correct and the equipment is
earthed.

 The cable of the power supply is connected using a 2-pole plug

connector with additional earth connection and interlocked with
the System 6844(RC) 1U Slim Line:

+Vin:

Positive pole (contact 1)

–Vin:

Negative pole (contact 2)

PE:

Earth

The System 6844(RC) 1U Slim Line can be damaged if incorrect voltage is
connected.

Earthing:

By default the minus pole (-Vin) and earthing (PE) are connected sys­tem-sided.

If the internal fuse (device protection) trips it is highly probable that the
equipment is faulty. In this case the device should be checked in the facto­ry.

3.2.4 DC Power Supply (Option)

3.2.4.1 Power Supply Unit Specifications

All DC power supply specifications are described in Chapter 11.2 Specific Technical Data
for 1U.

3.2.4.2 Fusing

Pay attention to the correct fusing of the power supply when connecting the System
6844(RC) 1U Slim Line.

The corresponding performance data can be taken from the equipment nameplate. The Sys­tem 6844(RC) 1U Slim Line is currently fitted with a power supply unit with a power con­sumption of max. 40VA.

3.2.4.3 Reverse Voltage Protection

The version of System 6844(RC) 1U Slim Line with DC supply has reverse voltage protec­tion. This protection prevents damage to the equipment due to an incorrectly connected DC
power supply.

Protection is effected by means of a self-resetting fuse. In the case of reverse polarity, it is
necessary to switch the equipment off for approx. 20 seconds after this fuse has tripped. The
power supply can then be connected with the correct polarity.

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INSTALLATION

For PPS input an additional hardware depending on the signal level for
synchronisation is required.

Insofar this option is factory set the connection and the signal level are stat­ed in the supplied manual.

For DCF77 pulse input an additional hardware depending on the signal
level for synchronisation is required.

Insofar this option is factory set the connection and the signal level are stat­ed in the supplied manual.

3.2.5 Synchronization Source Connection

Depending on the version different synchronisation signals can be connected to the System
6844 (RC)

3.2.5.1 GPS Antenna Equipment

The GPS antenna equipment coaxial cable is connected to the BNC connector marked "An­tenna" on the control board 6844(RC) of the System. More detailed specifications for the in-

stallation of the antenna equipment, such as cable lengths and types, can be found in the
manual "Antenna Equipment GPS".

3.2.5.2 Serial String

The synchronisation string is always connected to interface COM1. The correct signal level
has to be considered.

3.2.5.3 PPS (Pulse per second)

3.2.5.4 DCF77 Pulse

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INSTALLATION

SUB-D male con-

nector 9-pole

COM0

Pin

Assignment

1

n.c.

2

RxD RS232

3

TxD RS232

4

n.c.

5

GND

6

+TxD RS422 (high active)

7

-TxD RS422 (low active)

8

+RxD RS422 (high active)

9

-RxD RS422 (low active)

SUB-D male con-

nector 9-pole

COM1

Pin

Assignment

1

n.c.

2

RxD RS232

3

TxD RS232

4

n.c.

5

GND

6

+TxD RS422 (high active)

7

-TxD RS422 (low active)

8

+RxD RS422 (high active)

9

-RxD RS422 (low active)

SUB-D male con-

nector 9-pole

Error Relays

Pin

Assignment

1

n.c.

2

PWR - REL2 Common contact (c)

3

PWR - REL2 Normally open contact (no)

4

n.c.

5

GND

6

PWR - REL2 Normally closed contact(nc)

7

SYNC - REL1 Normally closed contact (nc)

8

SYNC - REL1 Common contact (c)

9

SYNC - REL1 Normally open contact (no)

DCF77 antenna simulation (77.5kHz) is not available in system 6844RC
with installed LAN management module

3.2.6 COM0 / COM1 Serial Interfaces Connection

The serial interfaces are assigned as follows:

n.c.: not connected

3.2.7 Error Relays Connection

PWR = Power / Operation – SYNC = Synchron

3.2.8 DCF77 Antenna Simulation (77.5kHz) Connection

The antenna cable of the DCF77 System to be synchronized is connected to the System’s
BNC socket marked "DCF-Sim". A type RG59 coaxial cable is recommended as standard

for the connection between

hopf

Systems.

3.2.9 Function Boards Connection / Input- and Output Modules

The necessary steps to connect the Function Boards should be consulted in the respective
technical specifications of the Function Boards present in the system.

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COMMISSIONING

AC power supply 3U / Table-Top / Wall:

Switch on external power supply.
The System 6844(RC) runs and the firmware version and pro-

gramming date are shown on the display (see Chapter 4.3 Dis-
play after System Start/Reset (Firmware)).

AC power supply 1U:

I O

Put the mains power switch into position " I " (on).
The System 6844(RC) 1U Slim Line runs and the firmware version

and programming date are shown on the display
(see Chapter 4.3 Display after System Start/Reset (Firmware)).

DC power supply:

Switch on external power supply source.
The System 6844(RC) 1U Slim Line runs and the firmware version

and programming date are shown on the display
(see Chapter 4.3 Display after System Start/Reset (Firmware)).

4 Commissioning

This chapter describes the commissioning of the system 6844(RC).

4.1 General Procedure

The commissioning procedure is as follows:

 Check the cabling:

o Earth
o Power supply
o Connection of the GPS Antenna System (GPS only)

and the appropriate synchronisation source for Sub-Master (Slave) Systems

o GPS antenna equipment
o COM0 / COM1 serial interfaces
o DCF77 antenna simulation (77.5kHz)
o Error relays (1U only)
o Function Boards

 Isolate all plug connections to the output interfaces and Function Boards (recom-

mended)

 GPS antenna equipment connection to the Sync.-Source remain in place (e.g. GPS

antenna equipment, and so on)

 Switch on System 6844(RC)
 Power LEDs light up on front and rear sides (1U only)
 The start frame appears on the display (for approx. 3 seconds)
 Execute all parameter settings via the SET menu

and also via the INI and S.CLOCK menus when necessary

 Check for successful synchronization of the System 6844(RC)
 Commission the Function Boards (where present):

o Set the Function Board(s) parameters
o Re-establish the plug connections
o Check that the connected equipment is receiving the time correctly

4.2 Switching on the Operating Power Supply

The green Power LED resp. the power supply LED light up for both power supplies.

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COMMISSIONING

S Y S T E M 6 8 4 4

 Control Board 6844 firmware

V 0 1 . 0 0 3 1 / M A Y / 1

0

 Firmware programming date

S Y S T E M 6 8 4 4 R C

 Control Board 6844RC firmware

V 0 1 . 0 0 3 1 / M A Y / 1

0

 Firmware programming date

L O C 0 0 : 0 0 : 0 5 - - - - - 0 0 / - - - / 2 0 0 0

E

After a voltage failure of less than 3 days the display starts up with the in­ternal back-up clock information, provided that time information was previ­ously available.

L O C 1 0 : 2 5 : 1 9 D - C T U 0 1 / J U N / 2 0 1 0

M

LOC 10:25:19

On adjustment: show local time on the display.

UTC 08:25:19

On adjustment: show UTC time on the display.

MO - TU - WE - TH -
FR - SA - SU

Display of the weekday in abbreviated form:
corresponds to MONDAY – SUNDAY

01/JUN/2010

Display of the date: Day / Month abbreviation / Year

M - S - E

Display Sync.-Mode or Errors Summary Message

M-aster / S-ub Master(Slave) / E-RROR

4.3 Display after System Start/Reset (Firmware)

The following start frame appears on the 2x16 digit LCD-Display for approx. 3 seconds after
switch-on or reset:

e.g.

respectively

4.3.1 Standard Display without Valid Time

The following frame (with incremental seconds) appears on the display on first commis­sioning or a longer time without voltage condition and loss of backup clock information:

4.3.2 Standard Display with Valid Time

Sample frame for the standard display after system start with valid back-up clock information
or following manual input of the time information:

The meaning of the individual items is as follows:

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COMMISSIONING

Position 1: X--

"D"

For daylight saving time (summer time)

"S"

For standard time (winter time)

""

The time indication on the display is set to UTC or the clock
system has no valid time information

Position 2: -X-

"A"

Announcement of DST changeover (summer time / winter

time changeover) to another time zone. This announcement
takes place approx. 1 hour before the time zone change An-
nouncement of a leap second. This information takes place
approx. 1 hour before the insertion of the leap second.

""

no announcement

Position 3: --X

Display of the internal status of the clock system:

""

The clock system has no valid time information

"C"

Clock system is running with internal quartz basis (C=Crystal)

"r"

Clock system is synchronized via synchronisation source

without internal quartz base control

"R"

Clock system is synchronized via synchronisation source with
internal quartz base control (R=Radio)

The internal time status information is calculated and the System is updat­ed after each minute change.

L O C 1 0 : 2 5 : 1 9 D - C T U 0 1 / J U N / 2 0 1 0

E

When the E is shown on the display for an active ERROR (see SHOW
menu), the LCD-Display backlight FLASHES in the 1Hz pulse.

This flashing occurs on the standard display only and not on the menu im­ages.

Status display:

4.3.3 Standard Display with Valid Time and Active ERROR-Byte

To provide the user with a visual indication of an error in the System, an E is shown on the
bottom right of the display as soon as one bit in the ERROR-byte is active (see SHOW
menu).

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COMMISSIONING

Key

Function

+ / -

Menu layer: Key + = forward / Key - = backward
Input layer: leading sign for numerical value

0 ... 9

Input of the digits

N, E, S, W

Input keys

Y

Call up menu group selection frame

BR (BREAK)

Aborts all key controls. Quits the input menu at any time and in any
position. All inputs following the most recent activation of the ENT

key are discarded.

BS (BACK-

SPACE)

Deletes the last character entered

ENT (ENTER)

Calls up the main menu from the standard display.
Completes and accepts the input at the end of an input frame. When
no input is made, pressing ENT switches through to the next frame.

4.4 Keypad Functions

The following describes the keypad design and operation.

4.4.1 Keypad Layout

Keypad layout of 3U / Table-Top / Wall Systems:

Keypad layout of 1U System:

4.4.2 Key Assignment

The other buttons have no specific function.

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COMMISSIONING

Standard frame:

L O C 1 0 : 2 5 : 1 9 D -

C T U 0 1 / J U N / 2 0 1 0

M

Main menu:

S E T = 1 S H O W = 2

S . C L K = 3 I N I = 4

1.01

TIME/DATE

1.02

DIF.-TIME

1.03

CHANGE_OVER DATE (Changeover Standard time / Summer time)

1.04

CHANGE_OVER DATE (Changeover Summer time / Standard time)

1.05

POSITION

2.31

SYSTEM-BYTE (Used Sync.-Source)

Shows the adjusted Sync.-Source.

4.4.3 Keypad Inputs / Main Menu Activation

The main menu is activated by pressing the ENT key. The display changes from the
standard frame to the main menu:

 The required menu item is executed by entering the corresponding number.
 An incorrect input number is either directly refused or checked for plausibility after

the ENT key is pressed. An "INPUT ERROR" message follows. The display then
returns to the standard frame.

 All of the selection functions are not always required or used. The System functions

for which they are effective are indicated in the specification, at the beginning of
each sub-function. If such a function is called up by mistake this can be exited by
pressing the BR key.

4.5 Initialization

The base initialization of the equipment is carried out first. This enables the equipment to
synchronize with the Sync.-Source.

To initialize the System 6844(RC) GPS the menu items presented below are to be parame­terized accordingly (see Chapter 5.2 SET Menu - Basic Settings System 6844(RC)). In do­ing so attention should be paid to System and location specific requirements such as time
base, synchronization source and synchronization parameters.

Menu items required for the base parameterization:

MENU 1: #SET

MENÜ 2: #SHOW

All additional settings are to be carried out in accordance with the requirements and use of
the equipment.

44 / 157 System 6844(RC) - V03.00

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SYSTEM PARAMETERIZATION AND OPERATION

1.01

TIME/DATE

1.02

DIFF.-TIME

1.03

CHANGE_OVER DATE (changeover standard time  summer time)

1.04

CHANGE_OVER DATE (changeover standard time  summer time)

1.05

POSITION (Sync.-Mode GPS only)

1.06

SYNCOFF

1.06

COM0 - SERIALPARAMETER

1.07

COM0 - MODE 1

1.08

COM0 - MODE 2

1.09

COM0 - MODE 3 (only if necessary for parameterizing)

1.10

COM1 - SERIALPARAMETER

1.11

COM1 - MODE 1

1.12

COM1 - MODE 2

1.13

COM1 - MODE 3 (only if necessary for parameterizing)

1.14

LAN1 - IP-ADR (board 7271/7272 not in system  no function)

1.15

LAN1 - GATEWAY ( -------------------- " ------------------- )

1.16

LAN1 - NETMASK ( -------------------- " ------------------- )

1.17

LAN1 - CONTROL-BYTE ( -------------------- " ------------------- )

1.18

LAN2 - IP-ADR (2. board 7271/7272 not in system  no function)

1.19

LAN2 - GATEWAY ( -------------------- " ------------------- )

1.20

LAN2 - NETMASK ( -------------------- " ------------------- )

1.21

LAN2 - CONTROL-BYTE ( -------------------- " ------------------- )

1.22

LAN MNG - IP-ADR (only by 6844RC with LAN MNG activated)

1.23

LAN MNG - GATEWAY ( -------------------- " ------------------- )

1.24

LAN MNG - NETMASK ( -------------------- " ------------------- )

1.25

LAN MNG - CONTROL-BYTE ( -------------------- " ------------------- )

1.26

FREQUENCY (board 7530 not in system  no function)

1.27

FREQUENCY TimeON/TimeOFF ( -------------------- " ------------------- )

1.28

PULSE OUTPUT

1.29

DISPLAY TIME

1.30

LANGUAGE DAY/MONTH

1.31

SYSTEM-BYTE (setting Sync.-Mode)

1.32

KEYPAD KEYWORD

5 System Parameterization and Operation

The following describes the menu structure and the individual menus.

5.1 Menu Structure

The main menu is called up by pressing the ENT key. This is divided into four different
menu items. These are called up by entering the respective number (1-4). Following this en-

try the respective sub-menus are then called up.
The menu structure is constructed as follows:

MENU 1: #SET

System 6844(RC) - V03.00 45 / 157

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SYSTEM PARAMETERIZATION AND OPERATION

2.01

SATELLITES (Sync.-Mode GPS only)

2.02

ERROR-BYTE

2.03

POSITION (Sync.-Mode GPS only)

2.04

DIFF.-TIME

2.05

CHANGE_OVER DATE (changeover standard time  daylight saving time)

2.06

CHANGE_OVER DATE (changeover daylight saving time  standard time)

2.07

SYNCOFF

2.08

COM0 - SERIALPARAMETER

2.09

COM0 - MODE 1

2.10

COM0 - MODE 2

2.11

COM0 - MODE 3 (only if necessary for parameterizing)

2.12

COM1 - SERIALPARAMETER

2.13

COM1 - MODE 1

2.14

COM1 - MODE 2

2.15

COM1 - MODE 3 (only if necessary for parameterizing)

2.16

LAN1 - IP-ADR (board 7271/7272 not in system  no function)

2.17

LAN1 - GATEWAY ( -------------------- " ------------------- )

2.18

LAN1 - NETMASK ( -------------------- " ------------------- )

2.19

LAN1 - CONTROL-BYTE ( -------------------- " ------------------- )

2.20

LAN2 - IP-ADR (2. board 7271/7272 not in system  no function)

2.21

LAN2 - GATEWAY ( -------------------- " ------------------- )

2.22

LAN2 - NETMASK ( -------------------- " ------------------- )

2.23

LAN2 - CONTROL-BYTE ( -------------------- " ------------------- )

2.24

LAN MNG - IP-ADR (only by 6844RC with LAN MNG activated)

2.25

LAN MNG - GATEWAY ( -------------------- " ------------------- )

2.26

LAN MNG - NETMASK ( -------------------- " ------------------- )

2.27

LAN MNG - CONTROL-BYTE ( -------------------- " ------------------- )

2.28

FREQUENCY (board 7530 not in system  no function)

2.29

FREQUENCY TimeON/TimeOFF ( -------------------- " ------------------- )

2.30

PULSE OUTPUT

2.31

SYSTEM-BYTE

2.32

ADD. OUTPUTS (1-4, if unlocked 1-8)

2.33

ADD. INPUTS (1-4, if unlocked 1-8)

3.01

SLAVE CLOCK NO. 1-4; see Board 7406 manual
(if no Board 7406 in the System  no function)

4.01

SHOW FIRMWARE-VERSION

4.02

SHOW PCID (PRODUCT CONFIG ID)

4.03

GPS MODE POS.-FIX/3D

4.04

DCF77.SYS CONF.-BYTE

4.05

DCF77.ADD CONF.-BYTE (only if activated)

4.06

DCF77.SYS/(ADD) TIMEOFF (ADD only if activated)

4.07

IRIG-B.(1) CONF.-BYTE

4.08

IRIG-B.(1) TIMEOFF

4.09

IRIG-B.(2) CONF.-BYTE (only if activated)

4.10

IRIG-B.(2) TIMEOFF (only if activated)

4.11

IRIG OUTPUT TIMER

4.12

LAN MANAGEMENT BOARD ACTIVATION (board 6844RC only)

4.13

RESET/DEFAULT

MENU 2: #SHOW

MENU 3: #S.CLOCK

MENU 4: #INI

46 / 157 System 6844(RC) - V03.00

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SYSTEM PARAMETERIZATION AND OPERATION

Grey lettering on the display corresponds to a possible customer input.

Exception:

The parameters of all NTP LAN Boards available in the System and the
Master Clock Board(s) (Menu 3 - S.CLK) are not stored on Control Board
6844(RC) but on the respective Function Board in each case.

Selection frame:

S E T L O C A L

T I M E / D A T E Y / N

Input frame:

T I M E > 1 5 : 4 3 : 0 0

D A T E > 2 3 / 0 5 / 2 0 1 0

Code

Meaning

Value Range

HH

Hour

00 ... 23

MM

Minute

00 ... 59

SS

Second

00 ... 59

DD

Day

01 ... 31

MM

Month

01 ... 12

YYYY

Year

2000 ... 2099

The weekday is automatically calculated to the date

5.2 SET Menu - Basic Settings System 6844(RC)

The function of this menu is to enter basic settings such as time/date, time offset, position,
etc.

Selection screens are confirmed with Y (yes) or rejected with N (no) or any key other
than Y and BR .

After entering N the next sub-function is displayed.
Use the + and - keys to scroll up and down on menu level.

5.2.1 Fail-safe Storage of Data Entries

All data entered via the keyboard is checked for plausibility and then stored fail-safe in an
EEPROM.

5.2.2 Input Time / Date

The local time is set with this input function. The entry is made on two lines and must be
complete. For this purpose it is also necessary to input the leading zeros.

The meaning of the individual items is as follows:

The entry is accepted by pressing the ENT key.

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SYSTEM PARAMETERIZATION AND OPERATION

The changeover dates for daylight saving time are to be entered for coun­tries which change their time zone during the year.

Selection frame:

S E T D I F F . - T I M E

( T I M E Z O N E ) Y / N

Input frame:

D I F F . - T I M E

> + 0 1 : 0 0 <

Difference Time Europe (CET)

The time offset always relates to the local standard time (winter time),
even if commissioning or input of the time offset takes place during daylight
saving time.

Standard time (winter time)  adjusted diff.-time
Daylight saving time (DST)  adjusted diff.-time +1h

UTC

Local Time

Time offset to

be set:

Comment

13:00:00

14:00:00 (winter time)

+01:00

13:00:00

15:00:00 (Daylight
Saving Time (DST))

+01:00

The time offset of two hours is
made up of
+01:00h time offset and
+01:00h for the daylight saving
time offset (changeover points of
time must be set for this purpose).

In case of an incorrect input the "INPUT ERROR" message appears for 3 seconds. The set­ting function is then exited and the standard frame reappears on the display.

If further entries are required, any key except Y and BR can be pressed to switch
through the SET menu.

The setup program is exited by pressing the BR key. The standard frame reappears.

5.2.3 Input Local Time to UTC Time Offset (Time Zone)

The time offset between the local standard time and the world time (UTC time) is entered
with this function.

The operational sign indicates the direction in which the local time differs from the world
time:

'+' Corresponds to East of the Null Meridian (Greenwich)
'-' Corresponds to West of the Null Meridian (Greenwich)

Since most countries of the world count their time offset in whole hours, the input is also in
one hour steps. The difference time may be up to ± 14.00h.

e.g. + 05:00 or - 11:00
However, some countries also use smaller time intervals. Therefore it is also possible to in-

put the data in one minute steps:
e.g. + 05:30 or - 08:45

Example for Germany:

48 / 157 System 6844(RC) - V03.00

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SYSTEM PARAMETERIZATION AND OPERATION

After the turn of the year the switching times for daylight saving time and
winter time are automatically calculated by the Clock System, which do not
require any user interaction.

Selection frame:

S E T C H A N G E _ O V E R

For winter / summer time changeover

D A T E S - > D Y / N

(Standard time  Daylight saving time)

Input frame:

S - > D h h / d / w / M M

> 0 2 / 7 / 5 / 0 3

<

Selection frame:

S E T C H A N G E _ O V E R

For summer / winter time changeover

D A T E D - > S Y / N

(Daylight saving time  Standard time)

Input frame:

D - > S h h / d / w / M M

> 0 3 / 7 / 5 / 1 0

<

hh

The hour
in which the changeover is to take place

00 ... 23 hours

d

The weekday
on which the changeover is to take place

1 = Mo ... 7 = Su

w

the appearance of weekday in the month
on which the changeover is to take place

1 ... 4  1.-4. appearance
5  last appearance in the month

MM

The month
in which the changeover is to take place

5.2.4 Input Daylight Saving Time (DST) Changeover

This input is used to define the points of time at which the changeover is made to daylight
saving time (DST) or to standard time throughout the course of the year. The hour, weekday,
week of the month and month in which the daylight saving time (DST) changeover (daylight
saving time / standard time changeover) is to take place are given here. The exact points of
time are then calculated automatically for the current year.

The parameters are selected in such a way that the changeover can take place at any point
of time. For control purposes, the exact date for the current year is indicated in the SHOW
functions.

If the DST changeover is not to be activated all values have to be entered as 0. The System
6844(RC) then only operates with the standard time (winter time) set via the time offset.

The meaning of the individual items is as follows:

The entry is completed by pressing the ENT key.

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SYSTEM PARAMETERIZATION AND OPERATION

Local time

UTC

Offset UTC  local time

01:59:58

00:59:58

+1 hour

01:59:59

00:59:59

+1 hour

03:00:00

01:00:00

+2 hours

03:00:01

01:00:01

+2 hours

Local time

UTC

Offset UTC  local time

02:59:58

00:59:58

+2 hours

02:59:59

00:59:59

+2 hours

02:00:00

01:00:00

+1 hour

02:00:01

01:00:01

+1 hour

Selection frame:

S E T P O S I T I O N

Y / N

Input frame:

L T . N 5 1 ° 1 2 , 6 9 0 0

'

L N . E 0 0 7 ° 3 7 , 7 9 0 0

'

position of the

hopf

company

After entering the position the Systems sets the two last digits automatically
to "00".

Input example for Germany (CET/CEST):
Standard time (CET)  DST (CEST) at the 2nd hour on the last Sunday in March.

Input: 02/7/5/03

Changeover standard time  DST (daylight saving time)

DST (CEST)  Standard time (CET) at the 3rd hour on the last Sunday in October.

Input: 03/7/5/10

Changeover DST (daylight saving time)  standard time

5.2.5 Input Position (GPS only)

The geographical position of the equipment is entered with this function. This function is
helpful during the first commissioning and shortens the first synchronization of the GPS re­ceiver.

The entries for the latitude and longitude positions take place in degrees and minutes and
seconds.

The operational sign for the degrees of latitude - LT. is:

N Northern hemisphere
S Southern hemisphere

and for the degrees of longitude - LN.:

E East of the Null Meridian (Greenwich)
W West of the Null Meridian (Greenwich)

The latitude position is entered first under PGG°MM,SSSS, where the meanings are as fol­lows:

P N or S, North or South
GG Degrees of Latitude from 00 - 89
MM Minutes of Latitude from 00 - 59
SSSS Minutes of Latitude decimal places 0000 - 9999

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SYSTEM PARAMETERIZATION AND OPERATION

If the position is unknown 0 should be entered in all places and N and E for
the direction.

If the position is incorrectly set and the GPS receiver synchronizes with this
position in the Position-fix mode, there may be a time leap under sync.
status "R" if, in the meantime, the GPS receiver picks up enough satellites
to calculate its correct position.

Selection frame:

S E T S y n c O F F

T I M E R Y / N

Input frame:

S y n c O F F > h h : m m <

> 9 9 : 5 9 <

Default value : 00:55

The associated SHOW menu can display whether the SyncOFF timer is
active and the current value of the timer.

There then follows the entry of the longitude position under pGGG°MM,SSSS, where the
meanings are as follows:

p E or W, East or West
GGG Degrees of Longitude from 000 - 179
MM Minutes of Longitude from 00 - 59
SSSS Minutes of Longitude decimal places 0000 - 9999

The position of

hopf

Elektronik GmbH is given in the above example.
The entry is completed by pressing the ENT key.
In order to speed up the synchronization of the GPS receiver it is sufficient for the position to

be input to an accuracy of 1-2 degrees (without minutes or decimal places).

5.2.6 Input SyncOFF Timer - Delayed Change of Sync.-Status

This value is used to bridge reception failures for error message-free operation in difficult re­ception conditions.

In the event of reception failure of the synchronization source, System synchronization to
Quartz Status 'C' is delayed by the set value. During this time, the System continues to run
in synchronization status 'r' on the internal, high-precision regulated quartz basis.

This timer is of particular importance when certain System outputs are linked to a specific
System status.

The timer can be adjusted from 2min. to 99h and 59min.

The desired value is entered via the keyboard. The input is accepted by pressing the ENT
key.

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SYSTEM PARAMETERIZATION AND OPERATION

Using the COM0 interface as Remote-Interface (RC Systems) and COM1
interface as synchronisation interface (Sub-Master Systems) the interfaces
are not available for any other functions.

Selection frame:

S E T C O M 0 S E R I A

L

P A R A M E T E R Y / N

Input frame:

B d : 0 9 6 0 0 W : 8

P : N S : 1 _

Selection frame:

S E T C O M 0

M O D E B Y T E _ 1 Y / N

Input frame:

M o d B _ 1 7 6 5 4 3 2 1

0

C O M 0 > 1 1 0 0 1 1 0

0

Selection frame:

S E T C O M 0

M O D E B Y T E _ 2 Y / N

Input frame:

M o d B _ 1 7 6 5 4 3 2 1

0

C O M 0 > 1 1 1 0 1 1 0

0

Depending on the selected string, Mode Byte 3 is also available in the
menu for the required configuration of the string.

Selection frame:

S E T C O M 0

M O D E B Y T E _ 3 Y / N

Input frame:

M o d B _ 3 7 6 5 4 3 2 1

0

C O M 0 > 0 0 0 0 0 0 0

1

5.2.7 Serial Interface Parameters

The interface parameters and the output mode can be entered separately for each of the two
serial interfaces. The following selection frames will be displayed (for configuration see
Chapter 6 COM0 / COM1 Serial Interfaces).

5.2.7.1 Selection Frames for Parameters of Serial Interface COM0

Setting serial Parameter

The parameters for Baud rate, Word length, Parity bit and Stop bit must be entered in se­quence in the following input frame:

Setting Mode Byte 1

Setting Mode Byte 2

Setting Mode Byte 3

52 / 157 System 6844(RC) - V03.00

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SYSTEM PARAMETERIZATION AND OPERATION

S E T C O M _ 1 S E R I A

L

P A R A M E T E R Y / N _

The parameter settings have no effect on the serial interface COM1 in case
of synchronisation of System via serial interface by the

hopf

Master/Slave
string. At this, the parameters are firmly adjusted to 9600baud, 8 data bit, no
parity an stop bit.

Selection frame:

S E T L A N _ 1

I P - A D R . Y / N

Input frame:

L A N _ 1 I P - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

0

Selection frame:

S E T L A N _ 1

G A T E W A Y - A D R . Y /

N

Input frame:

L A N _ 1 G W - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 0 1

0

Selection frame:

S E T L A N _ 1

N E T M A S K Y / N

Input frame:

L A N _ 1 N E T M A S

K

> 2 5 5 . 2 5 5 . 2 5 5 . 0 0

0

Selection frame:

S E T L A N _ 1

C T R L . - B Y T E Y / N

Input frame:

C T R L . - B 7 6 5 4 3 2 1

0

L A N _ 1 > 0 0 0 0 0 0 0

0

5.2.7.2 Selection Frames for Parameters of Serial Interface COM1

The parameters for the COM1 interface are entered in the same way as for COM0.

5.2.8 LAN Board Parameters (Option)

Further information and an explanation of the parameters are available in the respective LAN
Board description.

5.2.8.1 Selection Frames for LAN Board 1 Parameters

Setting the IP address

Setting the Gateway address

Setting the Network Mask

Setting the Control Byte

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S E T L A N _ 2

I P - A D R . Y / N

The menu is only visible on System 6844RC when the LAN Management
Board / Module is activated.
The LAN Management Board / Module is activated in the INI Menu.

Selection frame:

S E T L A N _ M N G

I P - A D R . Y / N

Input frame:

L A N _ M N G I P - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

0

Selection frame:

S E T L A N _ M N G

G A T E W A Y - A D R . Y /

N

Input frame:

L A N _ M N G G W - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

0

Selection frame:

S E T L A N _ M N G

N E T M A S K Y / N

Input frame:

L A N _ M N G N E T M A S

K

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

0

Selection frame:

S E T L A N _ M N G

C T R L . - B Y T E Y / N

Input frame:

C T R L . - B 7 6 5 4 3 2 1

0

L A N _ M N G > 1 0 1 0 0 0 0

1

5.2.8.2 Selection Frames for LAN Board 2 Parameters

This display frame shows the configuration of the LAN Board coded as Board 2 (if available
in the System).

The parameters for LAN Board 2 are entered in the same way as for LAN Board 1.

5.2.8.3 Selection Frame Parameters of the LAN Management Board/Module (System 6844RC only)

Setting the IP address

Setting the Gateway address

Setting the Network Mask

Setting the Control Byte

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S E T F R E Q U E N C Y

Y / N

Input frame:

F R E Q U E N C Y , H z

> 1 0 . 0 0 0 . 0 0 0 H z

 corresponds to 10MHz

Selection frame:

S E T F R E Q U E N C Y

T i m e O N / O F F Y / N

Input frame:

T i m e O N / O F F , m i

n

> 0 0 0 / 0 0 2 <

Timer

Input values

TimeON

0…255min.

TimeOFF

2…255min.

This function is not available via the Remote-Interface (

hmc

) in RC-

Systems.

The setting must not be changed by 1U devices; otherwise the status
output of the status LEDs and error relays will be faulty. Set value for 1U
Systems = 0000 0001

5.2.9 Frequency Output (Option)

When the System is extended with the Frequency Output Board, the frequency output can
be set between 1Hz and 10MHz in steps of 1Hz using this function.

The input mode is explained in the description of the Frequency Output Board.

Frequency Input

Frequency Output Delay

The output behaviour of the Frequency Board can be defined with TimeON and TimeOFF.
The TimeON timer defines how long the System has to run in synchronization status "R" be-

fore the output is enabled. This setting can be used to ensure that the base System is in a
precisely regulated state.

The TimeOFF timer can be used to define how long the transmission should continue alt­hough the System has changed synchronization status from "R" to "C".

5.2.10 Status and Pulse Output

A programmable output is available on the internal connector (pin 8C) which can be as­signed with status message, cyclical pulse or DCF77 pulse (1 Hz).

Programming takes place by entering a byte. The input is selected with the following selec­tion frame:

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S E T P U L S E

O U T P U T Y / N

Input frame:

P U L S E 7 6 5 4 3 2 1

0

B Y T E > 0 0 0 0 0 0 0

1

 Reference value for 1U

B7

Pulse Level Direction

0

Not inverted ( low active)

1

Inverted ( high active)

 If all bits in Mode 1, 2 and 3 are set to "0" (zero), Modes are disabled

 there is no output on the pulse output.

 After disabling the Modes, it is recommended to trigger a program re-

set.

 Only one Mode can be enabled.
 Enabling of several Modes is prohibited. In the event of a prohibited

configuration there is no output on the pulse output.

 If a function is set in the corresponding Mode, the bits of the other

Modes must be set to "0" (zero).

B6

B5

Mode 3: DCF77

0

0

Mode 3 disabled

0

1

DCF77 pulse (time base: UTC)

1

0

Not assigned (currently DCF77 pulse (time base: UTC))

1

1

Not assigned (currently DCF77 pulse (time base: UTC))

B4

B3

B2

B1

Mode 2: Cyclical Pulse Output

0 0 0

0

Mode 2 disabled

0 0 0 1 Second pulse, duration = 250msec

0 0 1 0 Minute pulse, duration = 1000msec

0 0 1 1 Not assigned (currently second pulse, duration = 250msec)

0 1 0 0 Hour pulse, duration = 1sec

0 1 0 1 Not assigned (currently second pulse, duration = 250msec)

0 1 1 0 Not assigned (currently second pulse, duration = 250msec)

0 1 1 1 Not assigned (currently second pulse, duration = 250msec)

1 0 0 0 Day pulse (local time 00:00:00), duration = 1000msec

1 0 0 1 Day pulse (local time 12:00:00), duration = 1000msec

1 0 1 0 Not assigned (currently second pulse, duration = 250msec)

1 0 1 1 Not assigned (currently second pulse, duration = 250msec)

1 1 0 0 Not assigned (currently second pulse, duration = 250msec)

1 1 0 1 Not assigned (currently second pulse, duration = 250msec)

1 1 1 0 Not assigned (currently second pulse, duration = 250msec)

1 1 1 1 Not assigned (currently second pulse, duration = 250msec)

B0

Mode 1: System Time Status Output

0

Mode 1 disabled

1

Output System synchronization status (radio mode)

Pulse configuration

In the second line, the individual bits can now be set to "0" or "1", whereby "1" is to be seen
as a start-up function.

The meanings of the individual bits are as follows:

The meaning of the individual bits of the Mode configuration:

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S E T D I S P L A Y T I M

E

Y / N

Input frame:

L O C A L = 0 U T C = 1

D I S P L A Y T I M E >

0

Display

Input

Local time

0

UTC

1

Selection frame:

S E T L A N G U A G E

D A Y / M O N T H Y / N

Input frame:

G E R M A N = 0 E N G L = 1

L A N G U A G E >

1

Display

Input

German

0

English

1

5.2.11 Selection of the Time Base for the LCD-Display

Local or UTC time can be selected for the display.

The following selections are available:

5.2.12 Selection of the Language for the Time Display on the LCD­Display

For the language for the time display, you can choose between German and English for the
weekday and month views.

The following selections are available:

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S E T S Y S T E M B Y T E

Y / N

Input frame:

S Y S T E M 7 6 5 4 3 2 1

0

B Y T E > 0 0 0 0 0 0 0

0

 Sync.-Mode GPS

B7 - B3

free, not used at present

0

not used at present

Unused bits should be set to "0" for compatibility reasons.

B2

B1

B0

Sync.-Source

0 0 0

GPS - (Master)

System synchronization via GPS

0 0 1

Serial Interface (COM1) - (Sub-Master (Slave))
Synchronization via serial

hopf

Master/Slave-String

0 1 0

Serial Interface (COM1) + PPS - (Sub-Master (Slave))
Synchronization via serial

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Master/Slave-String with additional

PPS

0 1 1

DCF77 Pulse (CET) - (Sub-Master (Slave))

Synchronization via DCF77 pulse

1 0 0

DCF77 Pulse (worldwide) - (Sub-Master (Slave))
Synchronization via DCF77 pulse

1 0 1

free, currently GPS

...

...

...

free, currently GPS

1 1 1

free, currently GPS

The Sync.-Mode is not changed or reset by releasing a FACTORY
DEFAULT.

5.2.13 SYSTEM-Byte

Functions can be switched on and off with the individual bits in the System byte.

5.2.13.1 Synchronization Mode (Sync.-Mode)

For further information see Chapter 2 System 6844(RC) Synchronization.

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SYSTEM PARAMETERIZATION AND OPERATION

Warning: In the case of Systems 6844, if the keyword is lost this can
only be reset at the

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factory.

In 6844RC Systems, the keyword for the keyboard can be reset by trigger­ing a factory default via the remote interface.

In order to avoid delays during commissioning, the keyword should only be set
after commissioning has been completed. The keyword should be kept in a
safe place and protected against unauthorized access.

Selection frame:

S E T K E Y P A D

K E Y W O R D Y / N

Input frame:

S E T / E N T E R

K E Y W O R D > 7 2 5 9

<

Input frame:

S E T / E N T E R

K E Y W O R D > 0 0 0 0

<

Input frame:

K E Y - W O R D > * * * *

<

5.2.14 Keyword Function for Keypad

The System can be protected by a key-word against unauthorized changes via the keypad to
the settings.

If a keyword has been set then this is requested after a selection has been made from the
main menu.

If the keyword is entered correctly then the display changes to the selected menu. The key­word protection is then deactivated until the selected menu has been exited. The keyword
protection is automatically reactivated after exiting the menu by pressing BR or after 255

seconds without pressing a key.
No keyword is set up in the factory.

A 4 digit number can now be entered as the keyword. The entry must be completed by
pressing the ENT key. The number sequence 0000 is an exception.

With this sequence of numbers the current keyword (if set) is deleted and the keyword pro­tection is deactivated.

The keyword becomes active when the next selection is made from the main menu.

A star is displayed for each digit entry and is always automatically completed by an arrow af­ter the fourth entry.

The keyword is confirmed by pressing the ENT key. If the keyword is correct entry is
gained to the corresponding menu item.

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SYSTEM PARAMETERIZATION AND OPERATION

Display frame:

W R O N G K E Y W O R D

Display frame:

W R O N G K E Y W O R D

! L A S T T R Y !

Display frame:

K E Y P A D B L O C K E D

F O R 4 H O U R S !

Display frame:

K E Y P A D B L O C K E D

F O R 4 H O U R S !

After selecting the desired display frame, you can update the displayed pa­rameters by pressing Y .

After the first and second incorrect entry the following display appears for 5 seconds:

After the third incorrect entry the following display appears for 5 seconds:

After the fourth incorrect entry the following display appears for 5 seconds:

When the next attempt is made to start the menu the following display appears:

No further entries can be made for four hours. Switching the System on and off does not de­lete the lockout time.

In this condition the System remains fully functional as before. The display reverts back to
the standard frame automatically after four minutes or by pressing the BR key.

5.3 SHOW Menu - Display of the System 6844(RC) Base Settings

The SHOW function is called up to check the values entered or the values updated via the
GPS receiver. The values are only displayed here and cannot be changed.

After selecting the main menu by pressing ENT the figure 2 is entered. The first SHOW
selection frame appears.

Use the + and - keys to scroll up and down on menu level.

The SHOW menu selection frames are output on the display. The menu is controlled as fol­lows:

 The next selection frame is displayed by entering ENT or N .
 The corresponding display frame is called up by entering Y .
 The display jumps to the next selection frame if ENT or N are entered in the

display frame.

 The SHOW menu can be exited at any time by pressing BR .

The individual functions of the System 6844(RC) are explained below.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W S A T E L L I T E

S

Y / N

Display frame 1:

V 2 0 : 0 9 5 1 3 : 0 9

0

1 0 0 7 : 0 7 7 2 5 : 0 7

5

Display frame 2:

T 1 0 : 0 6 8 0 3 : 0 6

3

0 7 1 7 : 0 5 1 :

The Y key can also be used to manually switch between these two
frames.

If there are no figures under V  there is a fault on the GPS receiver.

5.3.1 Satellite Values (GPS only)

This display function indicates the number of satellites that theoretically lie in the visibility
range of the antenna (V - visible); the actual number of received satellites (T - tracked); the
satellites that are being received (PRN - satellite no.) and a relative measurement of recep­tion performance.

This information is particularly helpful during installation and analysis of synchronisation
problems (see Chapter 9 System Indicators / Fault Analysis / Troubleshooting).

If the System is set for 3D synchronization it is necessary for a minimum of four satellites to
be in the visibility range of the antenna (tracked) in order to synchronize the GPS System
6844(RC) with UTC and to calculate the position. Under optimum conditions approx. 9-14
satellites are in the visibility range of the antenna, of which 12 can be received in parallel.

In the Position-fix mode at least one satellite is required for synchronization (however the
position is not calculated in this case).

If values are available in the System then the display frame may appear as follows (exam­ple):

10 satellites are theoretically within visibility range, of which satellite 20 is captured by the
GPS receiver with a relative signal/noise ratio of 95 and satellite 7 with a relative signal/noise
ratio of 77, etc.

A maximum of eight satellites can be shown on the display. This takes place on two frames
which are shown alternately every three seconds.

V (visible)

The number of satellites which are visible at this location with a theoretically optimum anten­na position appears under V (visible). During the first reception process or after a lengthy
voltage failure the value 00 appears under V.

Visible Value 0-14 is the number of satellites that can theoretically be picked up under opti­mum reception conditions, as calculated by the GPS receiver.

In addition, Visible Value 15-19 can represent an error message from the GPS receiver, if
required. The error message output changes every second between "V = 0" and "V = error
message".

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SYSTEM PARAMETERIZATION AND OPERATION

The situation may temporarily arise that, due to an unfavourable constella­tion, the receiver may well pick up satellites that can not however be used to
calculate the highly accurate time information. In such cases, it may occur
that an adequate number of satellites are received but synchronization of

the System does not take place.

Meaning of the Display Values

Signal/Noise Ratio

No satellite received

~~~

Under poor signal/noise conditions the values lie between
resp. are not shown

000 - 030

Under satisfactory to good signal/noise conditions the values lie
between

033 - 048

Under very good signal/noise conditions the values are

≥ 051

Selection frame:

S H O W E R R O R B Y T E

Y / N

Display frame:

E R R O R 7 6 5 4 3 2 1

0

B Y T E > 0 0 0 0 0 0 0

0

T (tracked)
T (tracked) shows the number of satellites that the System is actually receiving.

Pseudo-Random-Number

The figure before the colon is the Satellite Pseudo Random Number. The satellites are not
identified by 1, 2, 3 etc. but by the Pseudo Random Number under which the satellite radi­ates its information. If a satellite fails a reserve satellite can be activated under the same
number.

Signal/Noise Ratio

The number after the colon indicates the signal/noise ratio as a relative value. This should
vary between 0 and max. 110.

After the first installation it can take up to 30 minutes under the most unfavourable conditions
until anything is presented on the display frame. This is dependent on the start information
which the System receives (see Input Time, Position etc.) as well as the antenna position,
e.g. no free antenna visibility to the sky.

5.3.2 ERROR-Byte

Erroneous functions or modules are displayed in the ERROR-Byte for faster fault analysis.
Logic "0" indicates that the function or module is operating perfectly. Logic "1" indicates that
there is a fault condition.

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SYSTEM PARAMETERIZATION AND OPERATION

B7

LAN MNG Communication (6844RC only)

0

no error

1

no internal communication with 6844MNG
(can only be transmitted when the LAN MNG Board is enabled)

B6

0

no error

1

currently not implemented

B5

Keypad Input possible

0

no error

1

keypad blocked (at least 4x the wrong keyword entry)

B4

Daylight Saving Time (DST) Changeover

0

no error

1

incomplete data set for daylight saving time (DST) changeover

B3

0

no error

1

currently not implemented

B2

Control of the internal Quartz Basis

0

no error

1

Error in the quartz frequency adjustment

B1

Sync.-Protocol - Data plausible

0

no error

1

time information of sync.-source not plausible

B0

Sync.-Channel - Signal available

0

no error

1

no signal detected on the configured Sync.-Channel (input)

At present the following bits are allocated in the Error Byte:

Error Bit 7 = 1 (no communication with LAN MNG)

The Control Board 6844RC is unable to connect to a logged on LAN Management
Board / Module.

Error Bit 5 = 1 (Keypad blocked (at least 4x the wrong keyword entry))

A keyword was set for the keyboard and a wrong entry was made four times in succes­sion. This error can only be read separately with the

hmc

remote software or a LAN

Management Board/Module.

Error Bit 4 = 1 (incomplete data set for daylight saving time (DST) changeover)

The data for the daylight saving time (DST) changeover were not entered in full. There
is no calculation possible

Error Bit 2 = 1 (Error in the adjustment of the quartz frequency)

There is an error in the internal adjustment of the quartz frequency. The specified sys­tem accuracy and freewheel stability can't be guaranteed. According to these error the
system stays in Sync.-Status 'C' (crystal).

Error bit 1 = 1 (Protocol / Time information of the Sync.-Source is not plausible)

The protocol being read or rather the time information of the Sync.-Source cannot be
evaluated nor used.

By default the error bit "Sync.-Protocol" is always set after a system reset. After system
start the error bit is set or rather cancelled according to the received Sync.-Protocol.
This error bit is separately operated for each Sync.-Mode. All used Sync.-Protocols of
the respective Sync.-Mode may cause the setting of a failure bit.

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SYSTEM PARAMETERIZATION AND OPERATION

The respective quality counter verifies the received Sync.-Protocol to the
following scheme every second:

Value range of the quality counter: 0-60
Quality counter +1  all verifications are POSITIVE

Quality counter -5  at least one verification is NEGATIVE
After a system reset:

Initial value of the quality counter = 0
Value of the quality counter = 0-30  Error in the Sync.-Protocol

If the quality counter has been >30 one time during operation:
Quality counter = 0  Error in Sync.-Protocol
Quality counter ≠ 0  No error in Sync.-Protocol

Every minute protocols do not use a quality counter. Here the error bit
can be set every minute or cancelled depending on the result of the verifica­tion.

Below the behaviour of the quality counter and the single Sync.-Modes are described:

Sync.-Mode GPS

Serial String (Interval = every second)

The internal string is controlled once per second for:

 Plausibility of the strings structure
 Plausibility of the time information
 Existence of a VISIBLE error (see menu SHOW Satellites)

All criteria of the string are met, the quality counter is raised;
at least one not met criteria leads to a count down of the counter.

PPS (Interval = every second)

The PPS is controlled once per second for:

 The next PPS follows within 1000msec ±10msec
 Deviation of the pulse width of the PPS is max. ±40msec compared to the

recent PPS

 The pulse width of the PPS is max. 800msec
All criteria of the string are met, the quality counter is raised;

Sync.-Mode

at least one not met criteria leads to a count down of the counter.

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Master/Slave

Serial String (Interval = every second or minute)

The internal string is controlled once per second for:

 Plausibility of the strings structure
 Plausibility of the time information

All criteria of the string are met, the quality counter is raised;
at least one not met criteria leads to a count down of the counter.

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SYSTEM PARAMETERIZATION AND OPERATION

Every minute protocols do not use a quality counter. Here the error bit
can be set every minute or cancelled depending on the result of the verifica­tion.

Every minute protocols do not use a quality counter. Here the error bit
can be set every minute or cancelled depending on the result of the verifica­tion.

Sync.-Mode

Sync.-Channel

Sync.-Channel - TimeOUT

GPS

Serial String

181 seconds

PPS

61 seconds

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Master/Slave

Serial String

181 seconds

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Master/Slave with PPS

Serial String

181 seconds

PPS

61 seconds

DCF77 pulse (CET and worldwide)

DCF77 Pulse

25 seconds

Sync.-Mode

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Master/Slave with PPS

Serial String (Interval = every second or minute)

The internal string is controlled once per second for:

 Plausibility of the strings structure
 Plausibility of the time information

All criteria of the string are met, the quality counter is raised;
at least one not met criteria leads to a count down of the counter.

PPS (Interval = every second)

The PPS is controlled once per second for:

 The reception cycle is within 1000msec ±10msec
 Max. deviation of the pulse width ±40msec
 Pulse width max. 800msec

All criteria of the string are met, the quality counter is raised;
at least one not met criteria leads to a count down of the counter.

Sync.-Mode DCF77 Pulse (CET and worldwide)

DCF77 pulse (Interval = every minute)

The DCF77 time telegram is controlled once per second for:

 Plausibility of the strings structure
 Plausibility of the time information
 Plausibility of pulse length

o DCF77 pulse low = 100msec. 20msec.
o DCF77 pulse high = 200msec. 20msec.

Error bit 0 = 1 (no signal on the adjusted Sync.-Channel (input))
On the input of the adjusted Sync.-Source no signal nor activity is detected.
By default the error bit "Sync.-Channel" is not set after a System reset.

After system start the error bit is set or rather cancelled according to the activity on the
Sync.-Channel. This error bit is separately operated for each Sync.-Mode. All used
Sync.-Channels of the respective Sync.-Mode may cause the setting of a failure bit.

Based on no activity on a used Sync.-Channel, the error bit "Sync.-Channel" is set at
the end of the Sync.-Channel - Time OUT. Each detected activity on this Sync.­Channel resets the Sync.-Channel - TimeOUT and thus the error bit.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W P O S I T I O N

Y / N

Display frame:

L T . N 5 1 ° 1 2 , 6 9 9 3

'

L N . E 0 0 7 ° 3 9 , 7 9 9 4

'

Selection frame:

S H O W D I F F . - T I M

E

( T I M E Z O N E ) Y / N

Display frame:

D I F F . - T I M E

> + 0 1 : 0 0 <

Only the pre-set time offset to the local standard time (winter time) is ever
displayed. No account is taken of any additional offset due to summer time.

After a year change the clock system automatically recalculates the daylight
saving time changeover points of time.

Selection frame:

S H O W C H A N G E O V E

R

D A T E S - > D Y / N

Display frame:

S - > D T I M E > 0 2 : 0

0

S U 2 8 / 0 3 / 2 0 1

0

5.3.3 Position (GPS only)

The input position of the equipment (antenna) or the position updated by GPS is shown on
this display frame. The position data is updated by GPS every second (the display frame is
only updated after the menu item has been called up again or by pressing Y ).

LT = Degree of latitude, LN = Degree of longitude
In the above example the position of

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Elektronik GmbH is displayed.

5.3.4 Time Offset (Time Zone)

This display frame can be used to view the currently set time offset between local standard
time (time zone) and UTC time.

After entering Y the following image is displayed, e.g.:

5.3.5 Daylight Saving Time (DST) Changeover

The DST changeover points of time for the current year, calculated from the customer input,
can be viewed with this display frame.

Time Zone Changeover S  D

This function shows the changeover point of time from Standard time (winter time) to Day­light saving time (summer time).

After entering Y the following frame appears (example):

The changeover takes (took) place on Sunday 28 March 2010 at 02.00 a.m.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W C H A N G E O V E

R

D A T E D - > S Y / N

Display frame:

D - > S T I M E > 0 3 : 0

0

S U 3 1 / 1 0 / 2 0 1

0

Display frame:

N O C H A N G E O V E R

D A T E S

Selection frame:

S H O W S y n c O F F

T I M E R Y / N

Display frame:

S y n c O F F x = h h : m m

A = 0 0 : 5 0 S = 0 1 : 0 0

Display frame:

S y n c O F F x = h h : m m

A = - - : - - S = 0 1 : 0 0

Timer not active

Display frame:

S y n c O F F x = h h : m m

A = 0 0 : 0 0 S = 0 1 : 0 0

Timer lapsed

Time Zone Changeover D  S

This function shows the changeover point of time from
Daylight saving time (summer time) to Standard time (winter time).

After entering Y the following frame appears (example):

The changeover takes (took) place on Sunday 31 October 2010 at 03.00 a.m.

If no changeover dates are set in the System, the following frame appears in response to
both requests:

5.3.6 SyncOFF Timer - Delayed Change of Sync. Status

The current value set for the SyncOFF timer can be viewed with this display frame.
Also displayed is whether the SyncOFF timer is enabled and, if so, the remaining time until

the timer expires and thus until the System synchronization status changes if no new syn­chronization was carried out up to this point of time.

After entering Y the following image is displayed, e.g:

This display frame means that the SyncOFF timer was set to one hour and that this timer is
active and will run for a further 50 minutes.

The timer is enabled as soon as the System ceases to be synchronized by the synchroniza­tion source. Dependent on the synchronization source, the timer can then count down to
00:00 in order to then lower the System status from "r" to "C"; alternatively it is again disa­bled if re-synchronization takes place by the synchronization source (see the following dis­play frames).

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W C O M 0 S E R I A

L

P A R A M E T E R Y / N

Display frame:

B d : 0 9 6 0 0 W : 8

P : N S : 1

Selection frame:

S H O W C O M 0

M O D E B Y T E _ 1 Y / N

Display frame:

M o d B _ 1 7 6 5 4 3 2 1

0

C O M 0 > 1 1 0 0 0 0 0

0

Selection frame:

S H O W C O M 0

M O D E B Y T E _ 2 Y / N

Display frame:

M o d B _ 2 7 6 5 4 3 2 1

0

C O M 0 > 0 0 0 0 1 1 0

0

Depending on the selected string, Mode Byte 3 is also available in the
menu for the required configuration of the string.

Selection frame:

S H O W C O M 0

M O D E B Y T E _ 3 Y / N

Display frame:

M o d B _ 3 7 6 5 4 3 2 1

0

C O M 0 > 0 0 0 0 0 0 0

1

The parameter settings have no effect on the serial interface COM1 in case
of synchronisation of System via serial interface by the

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Master/Slave
string. At this, the parameters are firmly adjusted to 9600baud, 8 data bit, no
parity an stop bit.

5.3.7 Serial Interface Parameters

With this menu the serial interface parameters can be shown.

5.3.7.1 Display Frames for the COM0 Serial Interface Parameters

The configuration of the COM0 interface is shown with these display frames. The signifi­cance of the configuration can be found in Chapter 6 COM0 / COM1 Serial Interfaces.

COM 0 Interface Parameter Displays

Mode Byte 1 Displays

Mode Byte 2 Displays

Mode Byte 3 Displays

5.3.7.2 Display Frames for the COM1 Serial Interface Parameters

The configuration of the COM1 interface is shown with these display frames. The display
functions are analogue to the COM0 interface display.

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SYSTEM PARAMETERIZATION AND OPERATION

The LAN Board parameters are cyclically updated (approximately every 10
seconds) in Control Board 6844(RC), as these can also be changed via the
WebGUI of the respective Board.

Selection frame:

S H O W L A N _ 1

I P - A D R . Y / N

Display frame:

L A N _ 1 I P - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

0

Selection frame:

S H O W L A N _ 1

G A T E W A Y - A D R . Y /

N

Display frame:

L A N _ 1 G W - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 0 1

0

Selection frame:

S H O W L A N _ 1

N E T M A S K Y / N

Display frame:

L A N _ 1 N E T M A S

K

> 2 5 5 . 2 5 5 . 2 5 5 . 0 0

0

Selection frame:

S H O W L A N _ 1

C T R L . - B Y T E Y / N

Display frame:

C T R L . - B 7 6 5 4 3 2 1

0

L A N _ 1 > 0 0 0 0 0 0 1

0

Selection frame:

S H O W L A N 2

I P - A D R . Y / N

5.3.8 LAN Board Parameters

Further information and an explanation of the parameters can be found in the description of
the LAN Board.

5.3.8.1 Display Frames for LAN Board 1 Parameters

The configuration of the LAN Board coded as Board 1 is displayed on this display frame.

IP Address Displays

Gateway Address Displays

Network Mask Displays

Control Byte Displays

5.3.8.2 Display Frames for LAN Board 2 Parameters

The configuration of the LAN Board coded as Board 2 is displayed on this display frame.
The LAN Board 2 parameters are displayed in the same way as for LAN Board 1.

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SYSTEM PARAMETERIZATION AND OPERATION

Only displayed on System 6844RC when the LAN Management Board /
Module is activated.

Selection frame:

S H O W L A N _ M N G

I P - A D R . Y / N

Display frame:

L A N _ M N G I P - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 2 1

1

Selection frame:

S H O W L A N _ M N G

G A T E W A Y - A D R . Y /

N

Display frame:

L A N _ M N G G W - A D R

.

> 1 9 2 . 1 6 8 . 2 0 2 . 0 1

0

Selection frame:

S H O W L A N _ M N G

N E T M A S K Y / N

Display frame:

L A N _ M N G N E T M A S

K

> 2 5 5 . 2 5 5 . 2 5 5 . 0 0

0

Selection frame:

S H O W L A N _ M N G

C T R L . - B Y T E Y / N

Display frame:

C T R L . - B 7 6 5 4 3 2 1

0

L A N _ M N G > 0 0 0 0 0 0 0

0

5.3.8.3 Display Frames for LAN Management Board Parameters (System 6844RC only)

his display frame shows the configuration of the LAN Management Board.

IP Address Displays

Gateway Address Displays

Network Mask Displays

Control Byte Displays

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W F R E Q U E N C Y

Y / N

Display frame:

F R E Q U E N C Y , H z

> 0 9 0 1 2 3 5 0 H z

Selection frame:

S H O W F R E Q U E N C Y

T i m e O N / O F F Y / N

Display frame:

T i m e O N / O F F , m i

n

> 0 0 0 / 0 0 2 <

Selection frame:

S H O W P U L S E

O U T P U T Y / N

Display frame:

P U L S E 7 6 5 4 3 2 1

0

B Y T E > 0 0 0 0 0 0 0

1

 Reference value for the 1U housing
version

Selection frame:

S H O W S Y S T E M B Y T

E

Y / N

Display frame:

S Y S T E M 7 6 5 4 3 2 1

0

B Y T E > 0 0 0 0 0 0 0

0

5.3.9 Frequency Output (Option)

The frequency set for the Frequency Output Board is displayed on this display frame as also
the actual adjusted values for TimeON and TimeOFF.

Frequency Display

Frequency Output Delay Display

5.3.10 Status and Pulse Output

This display frame shows the configuration byte for the status and pulse output.

5.3.11 SYSTEM-Byte

The System Status Byte is displayed with this display frame. The meaning of configuration is
described in Chapter 5.2.13 SYSTEM-Byte

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S H O W A D D . O U T P U T

S

Y / N

Display frame:

O U T 8 7 6 5 4 3 2 1

x x x x 1 0 0 1

Output OUT 4: Summary error message not available

0

inactive  summary error message is available (at least one ERROR-Bit is active)

1

active  summary error message is not available (no ERROR-Bit is set)

Output OUT 3: SyncOFF Timer not active

0

inactive  SyncOFF Time is running (active or lapsed)

1

active  SyncOFF Time is not running (not active and not lapsed)

Output OUT 2: Sync.-Status = radio

0

inactive  Sync.-Status: invalid (-), quartz (C)

1

active  Sync.-Status: radio without regulation (r), radio (R)

Output OUT 1: System time valid

0

inactive  Sync.-Status = "-"

1

active  Sync.-Status = "C", "r", "R"

Selection frame:

S H O W A D D . I N P U T S

Y / N

Display frame:

I N 8 7 6 5 4 3 2 1

x x x x 0 0 0 0

5.3.12 ADD.Outputs (Digital I/O)

This display screen shows the current status of the 4 internal digital status outputs.

5.3.13 ADD.Inputs (Digital I/O)

This display screen shows the current status of the 4 internal digital signal inputs.

No fixed function is currently assigned to these bits.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

S L A V E C L O C K

L I N E 1 . . 4 > _

Selection frame:

F I R M W A R E V E R .

Y / N

Display frame:

S Y S T E M 6 8 4 4

V 0 1 . 0 0 3 1 / M A Y / 1

0

Selection frame:

P R O D U C T C O N F I G

I D ( P C I D ) Y / N

Display frame 1:

1 : 0 1 6 8 4 4 0 1 1 1 4

6

D 1 1 0 0 8 1 9 8 2 0

A

Display frame 2:

2 : 0 2 0 0 3 1 0 9 1 1 0 0 0

2

0 1 0 0 1 8 0 3 1 0 0 0 0

2

Display frame 3:

3 : 0 0 0 6 0 0 0 1

The PCID allows

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Elektronik GmbH to make decision about the re-

spective System - from the distance - in support cases or, for example,
when product extensions are desired. The PCID allows faster and more
effective processing in support cases or other issues concerning the Sys­tem.

5.4 S.CLOCK Menu - Control of Slave Clocks with Function Board 7406

After selecting the main menu by pressing the ENT key the figure 3 is entered. The fol­lowing selection frame appears:

Further information and an explanation of the parameters can be found in the description of
the Function Board 7406.

5.5 INI Menu - System 6844(RC) Extended Settings/Functions

Different settings can be configured for special applications and problem solutions using the
INI menu. These functions are pre-set to Standard ex works.

After selecting the main menu display by pressing the ENT key the figure 4 is entered.
Pressing the BR key returns the user to the standard display.

5.5.1 Display the Firmware Version of Board 6844(RC)

This function is used to display the current firmware version of Board 6844(RC).

e.g.

5.5.2 Display the PCID (Product Config ID) of Board 6844(RC)

This function is used to display the PCID (Product Config ID) of Board 6844(RC). The PCID
is displayed in 3 successive display frames.

e.g.

The + and - keys are used to scroll the display frames up / down.

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Elektronik GmbH

SYSTEM PARAMETERIZATION AND OPERATION

Only configurable in Sync.-Mode GPS.

When the position is entered to ±1 minute degree the accuracy of the sec­ond mark is already better than ±20sec.

Position-fix Evaluation Features

3D Evaluation Features

 Clock can synchronize with only one

received satellite.

 Accuracy depends on the exact entry

of the position.

 If four or more satellites are received

in this mode then the evaluation
switches automatically into 3D mode
for this time period and calculates the
exact position.

 The antenna can also be installed in

locations from where less than ¼ of
the sky is visible.

 The System can not be synchronized if

less than four satellites are received.

 The position is calculated automatical-

ly.

 The accuracy of the synchronization is

increased by the exact calculation of
position.

 The antenna usually requires more

than ¼ free visibility of the sky.

5.5.3 3D / Position-fix GPS Reception a. Synchronization Mode (GPS only)

3D Evaluation

The accuracy of the time evaluation is defined by the exact positional calculation of the in­stallation location. A minimum of four satellites is required for this calculation (3D evaluation).
The signal transmission times to several satellites are defined from the calculated position
and the exact second mark is produced from their mean value.

Position-fix Evaluation

In the Position-fix mode the System can be synchronized with only one received satellite. In
this case the accuracy depends heavily on the exact entry of the installation position loca­tion. The second mark is then calculated on the basis of the position entered. If four or more
satellites are received in Position-fix mode then the evaluation switches automatically into 3D
mode for this time period and calculates the exact position. By this means the accuracy of
the Position-fix evaluation increases to the accuracy of the 3D evaluation.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

G P S M O D E

P O S . F I X / 3 D Y / N

Display frame:

G P S M O D E

Default Value: 3D

> P O S . F I X < + /

-

Display frame:

G P S M O D E

> 3 D < + /

-

In System 6844(RC), one DCF77 pulse (1 Hz) is available as standard
(DCF77.SYS). This DCF77 pulse is available to other Function Boards on
the internal System-Bus; however, the same DCF77 pulse is also used to
produce DCF77 antenna simulation (77.5 kHz) of Control Board 6844(RC)
(DCF-SIM). Account must be taken of this when configuring this pulse.

All settings described in this Chapter affect both signal DCF77.SYS and
DCF77 antenna simulation (77.5 kHz).

Selection frame:

D C F 7 7 . S Y S

C O N F . B Y T E Y / N

Display frame:

B Y T E A = 1 0 0 0 0 0 0 0 B 7 . . 0 > 0 0 0 0 0 0 0

0

B7

B6

Time Base

0 0 Local time (time zone time with DST changeover)

0 1 Standard time (time zone time without summer time)

1 0 UTC 1 1

Not assigned (currently local time)

B5 .. B0

Not assigned

x

Not assigned

The modes are set as follows:

For the Position-fix evaluation this is:

The following frame appears for 3D evaluation:

The evaluation can be changed between the two modes with the + and - sign.

5.5.4 DCF77 Pulse (1Hz) / DCF77 Antenna Simulation (77.5kHz)

This Chapter describes the configuration of the DCF77 pulse(s) and DCF77 antenna simula­tion (77.5 kHz).

5.5.4.1 Signal DCF77.SYS / DCF77 Antenna Simulation (77.5kHz)

5.5.4.1.1 Display and Set the DCF77.SYS Configuration

In this display frame, both the current settings for signal DCF77.SYS are displayed and the
new values are entered.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

D C F 7 7 . S Y S

T i m e O F F Y / N

Display frame:

D C F 7 7 . S Y S Default value: 55min.

T i m e O F F > 0 5 5 < m i

n

When DCF77.SYS (/ ADD) TimeOFF = 255 minutes, the DCF77 signal
(pulse / simulation) is always transmitted as soon as a valid time is availa­ble in the System.

The following menu items only appear when signal DCF77.ADD is enabled.

Selection frame:

D C F 7 7 . A D D

C O N F . B Y T E Y / N

Display frame:

B Y T E A = 1 0 0 0 0 0 0 0 B 7 . . 0 > 0 1 0 0 0 0 0

0

Selection frame:

D C F 7 7 . S Y S / A D D

T i m e O F F Y / N

Display frame:

D C F 7 7 . S Y S / A D D Default value: 55min.

T i m e O F F > 0 5 5 < m i

n

5.5.4.1.2 Display and Set DCF77.SYS TimeOFF

The value for DCF77.SYS TimeOFF can be set between 002 and 255 minutes, and is used
for time-restricted transmission of signal DCF77.SYS after synchronization of the System to
Sync.-status "C".

5.5.4.2 Signal DCF77.ADD (Option)

In System 6844(RC), there is an option to enable a second DCF77 pulse.

5.5.4.2.1 Display and Set DCF77.ADD Configuration

In this display frame, both the current settings for signal DCF77.ADD are displayed and the
new values are entered.

Configuration takes place in the same way as for signal DCF77.SYS.

5.5.4.2.2 Display and Set DCF77.ADD TimeOFF

Signal DCF77.ADD has no separate TimeOFF. If signal DCF77.ADD is enabled,
DCF77.SYS and DCF77.ADD will be set to the same timer value.

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SYSTEM PARAMETERIZATION AND OPERATION

low

high

PPS

IRIG-B

digital

IRIG-B
analog

2msec

5msec

reference bit

position identifier

8ms 8ms

5.5.5 IRIG-B (Digital) Output

This Chapter describes the structure and configuration of the digital IRIG-B signal that is
available in the System.

5.5.5.1 IRIG Time Code, Structure and Timing Diagram

The IRIG time code format consists of a time code with 74 bits and has a repetition rate of
one second. The bit frame is 10 msec. The bit rating is represented by pulse width modula­tion and is a multiple of one millisecond.

In the case of analog output, the positive zero crossing of a sine wave (carrier frequency
1000 Hz) is modulated with the rising edge of the IRIG signal. The modulation depth should
be between 3:1 and 6:1 for signal information of H/L level.

For synchronization at the start of the second, a neutral logical state - referred to as an iden­tifier - is required.

Logic 0 = 2 msec H level
Logic 1 = 5 msec H level
Identifier = 8 msec H level

The 74 time code bits are divided into:

30 bits for the BCD value of seconds, minutes, hours, and the current day of the year
27 bits for the input of control information
17 bits for the binary value of the current day seconds

100 bit frames can be transmitted in one second. Unused bit frames are filled with a logical
zero.

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SYSTEM PARAMETERIZATION AND OPERATION

Digit 1

0

= digital output

1

= analog output via carrier signal

Digit 2

0

= no carrier signal

1

= carrier signal 100 Hz

2

= carrier signal 1000 Hz

Digit 3

0

= time, second of day, control information

1

= time, control information

2

= time

3

= time, second of day

4

= time, year, second of day, control information

5

= time, year, control information

6

= time, year

7

= time, year, second of day

e.g. IRIG-B123

= analogue output, carrier signal 1000 Hz
= time information data content and binary seconds of day

5.5.5.1.1 IRIG-Bxxx Format Classes in accordance with IRIG Standard 200-04

The signal output can be both digital and analog with different data content. The variations
are identified by attaching a three-digit combination of numbers. The digits indicate the fol­lowing:

5.5.5.1.2 IEEE1344-1995

This IRIG Time Code Standard is based on IRIG Standard 200-89. Fixed data such as year,
time offset, etc. are assigned to the 27 bits of the control information field.

IRIG Standard 200-89 is included as a sub-section of IEEE1344.

5.5.5.1.3 AFNOR NFS 87-500

The AFNOR NFS 87-500 Code is similar to the IRIG Time Code Standard. It was estab­lished by the French Standards Association. It is based on IRIG Standard 200-89.

IRIG-B Standard 200-89 is included in part as a sub-section of AFNOR NFS 87-500.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

I R I G - B . ( 1 )

C O N F . B Y T E Y / N

Display frame:

B Y T E A = 1 0 0 0 0 0 0

0

B 7 . . 0 > 1 0 0 0 0 0 0

1

B7

B6

Time Base

0 0 Local time (time zone time with daylight saving time (DST) changeover)

0 1 Standard time (time zone time without summer time)

1 0 UTC 1 1

Not assigned (currently local time)

B5

Not assigned

x

Not assigned

B4

IRIG Time Code Signal Output

0

Not inverted

1

Inverted

B3

Not assigned

x

Not assigned

Bit 2

Bit 1

Bit 0

IRIG Time Code Format

0 0 0

IRIG-B - B002 (time)

0 0 1

IRIG-B - B006 (time, year)

0 1 0

IRIG-B - B003 (time, second of day)

0 1 1

IRIG-B - B007 (time, year, second of day)

1 0 0

IEEE1344

1 0 1

AFNOR NFS 87-500

1 1 0

Not assigned (currently IEEE1344)

1 1 1

Not assigned (currently IEEE1344)

The IRIG-B output is in accordance with IRIG Standard 200-04.

Selection frame:

I R I G - B . ( 1 )

T i m e O F F Y / N

Input frame:

I R I G - B . ( 1 )

T i m e O F F > 0 0 5 < m i

n

5.5.5.2 Display and Set IRIG-B.(1) Configuration

In this display frame, both the current settings for the IRIG-B Time Code signal generation
for signal IRIG-B.(1) are displayed and the new values are entered.

Assignment of the IRIG-B.(1) CONF.BYTE

5.5.5.3 Display and Set IRIG-B.(1) TimeOFF

The value for IRIG-B (1) TimeOFF can be set between 002 and 255 minutes, and is used for
the time-limited output of the IRIG time code after synchronization of the System to Quartz
Status 'C'.

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SYSTEM PARAMETERIZATION AND OPERATION

When IRIG-B.(1) TimeOFF = 255 minutes, the IRIG time code is always
transmitted as soon as a valid time is available in the System.

The following menu items only appear when the IRIG-B.(2) signal is ena­bled.

Selection frame:

I R I G - B . ( 2 )

C O N F . B Y T E Y / N

Selection frame:

I R I G - B . ( 2 )

T i m e O F F Y / N

Selection frame:

L A N M A N A G E M E N T

B O A R D A C T I V . Y /

N

Input frame:

L A N _ M N G > D E A C T I V

.

+ /

-

Input frame:

L A N _ M N G > A C T I V .

+ /

-

The time can be increased by pressing the + key and reduced with the - key.
When quitting the program by pressing BR the last displayed value is stored in fail-safe

manner.

5.5.5.4 IRIG-B.(2) Configuration/TimeOFF (Option)

In System 6844(RC), there is an option to enable a second digital IRIG-B output.

and

Configuration takes place in the same way as for the IRIG-B.(1) signal.

5.5.6 Activate LAN Management Board (Board 6844RC only)

In order that the LAN Management Board / Module of Control Board 6844RC can be config­ured and monitored, the LAN Management Board / Module must be activated in the 6844RC
menu.

or

The LAN Management Board / Module is activated or deactivated in the 6844RC with the
+ and - key (ACTIVATION/DEACTIVATION).

An activated LAN Management Board / Module will be monitored for its presence. If an error
is detected here, this will be indicated in the ERROR byte.

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SYSTEM PARAMETERIZATION AND OPERATION

Selection frame:

R E S E T / D E F A U L T

Y / N

Input frame:

R E S E T : S W = 1 H W =

2

G P S = 3 D E F = 9 > _

This function has no effect on the failsafe-stored data.

This function has no effect on the failsafe-stored data.

This function has no effect on the data stored fail-safe on Control Board
6844(RC).

This function resets almost every setting of the Control Board to factory
default values. For exceptions see Table 12.1 Factory-Default Values

5.5.7 Trigger Reset / Default

In System 6844(RC), a reset or default can be triggered in a differentiated way, in the Sys­tem or in individual components.

A software-reset is triggered by pressing the 1 key followed by ENT .
A hardware-reset is triggered by pressing the 2 key followed by ENT .
A default of the GPS receiver is triggered by pressing the 3 key followed by ENT .
A factory default is triggered by pressing the 9 key followed by ENT .
The respective action is triggered approximately 3 seconds after pressing the ENT key.

5.5.7.1 Software-Reset (Control Board 6844(RC) only)

This function triggers a software reset of the System 6844(RC) Control Board. All other
Function Boards in the System continue to run (except Function Boards without their own
processor).

5.5.7.2 Hardware-Reset (Complete System)

This function triggers a hardware reset of the whole System 6844(RC). All Function Boards
present in the System 6844(RC) are reset and restarted.

5.5.7.3 Trigger the GPS Receiver Default (GPS only)

This function triggers a default of the onboard GPS receiver located on Control Board
6844(RC). All data stored in the GPS receiver, for example leap second information, are de­leted and have to be recalculated by the GPS receiver. This may take about 12-13 minutes if
there is satellite reception during this time. Failure of satellite reception may extend this time.

5.5.7.4 Factory Default (Control Board 6844(RC) only)

This function triggers a factory default of the entire Control Board 6844(RC) including GPS
receiver (if available). Furthermore, all Function Boards present in System 6844(RC) are re­set and rebooted.

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COM0 / COM1 SERIAL INTERFACES

Using the COM0 interface as Remote-Interface (RC Systems) and COM1
interface as synchronisation interface (Sub-Master Systems) the interfaces
are not available for any other functions.

The parameter settings have no effect on the serial interface COM1 in case
of synchronisation of System via serial interface by the

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Master/Slave
string. At this, the parameters are firmly adjusted to 9600baud, 8 data bit, no
parity and one stop bit.

Alternatively, System pulses can also be transmitted via the serial interface
hardware (see Chapter 6.1.2.8 Mode Byte 2 / Bit7: Output Mode DATA
STRING / PULSES).

Selection frame:

S E T C O M 0 S E R I A

L

P A R A M E T E R Y / N

Input frame:

B d :

6 COM0 / COM1 Serial Interfaces

The System is equipped with two serial interfaces without handshake lines which can be set
up individually. Data exchange can take place via RS232c (V.24) or RS422 (V.11) signal
levels. The signals can be used, for example, to transmit time telegrams to other computers.

Various data strings are available. Customer-specific data strings are available on request.
The following settings can be made separately for each serial interface.

6.1 Configuration of the Serial Interfaces / Pulse Output

The parameterization and functionality of the serial interfaces respectively the selection of
pulses is described below.

6.1.1 Serial Transmission Parameters

The interfaces are parameterized via the keypad. The baud rate, data bit, stop bit and parity
settings are made by pressing the ENT key and selecting the SET menu.

The entry for COM0, COM1 or optical interface (not supported in this equipment version)
must be selected in the selection dialog. In the following only the COM0 interface is de­scribed. The same settings are applicable to COM1.

 Key ENT
 Key 1 for SET menu
 Pressing Key N until the following menu appears

 Key Y

The interfaces / parameters dialog appears on the display with the following message:

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COM0 / COM1 SERIAL INTERFACES

Input frame:

B d : 0 9 6 0 0 W : _

Input frame:

B d : 0 9 6 0 0 W : 8

P : _

Input frame:

B d : 0 9 6 0 0 W : 8

P : N S : 1

No handshake lines for the serial interfaces are available in this version of
the device 6844(RC).

The baud rate must be entered here as a five digit numerical value. Possible inputs are:

 19200 for 19,200 baud
 09600 for 9,600 baud
 04800 for 4,800 baud
 02400 for 2,400 baud
 01200 for 1,200 baud
 00600 for 600 baud
 00300 for 300 baud
 00150 for 150 baud

After entering the final figure for the baud rate the following message appears on the display:

The number of data bits for the transmission must be given here. Possible settings are:

 8 for 8 data bits
 7 for 7 data bits

After entering the figure for the number of data bits the following message appears on the
display:

The type of the parity bit for the transmission must be given here. Possible settings are:

 N for no parity bit
 E for even parity
 0 (zero) for odd parity

After entering the parity function the following message appears on the display:

The number of stop bits for the transmission must be selected here:

 1 for 1 stop bit
 2 for 2 stop bits

The ENT key must be activated after the final entry. By doing so a plausibility check of the
complete data entry is undertaken. If the data entry is valid the new settings are transferred.

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COM0 / COM1 SERIAL INTERFACES

Selection frame:

S E T C O M 0

M O D E B Y T E _ 1 Y / N

Selection frame:

S E T C O M 0

M O D E B Y T E _ 2 Y / N

Selection frame:

S E T C O M 0

M O D E B Y T E _ 3 Y / N

The SET menu for Mode Byte 3 is only displayed if a string which requires
Mode Byte 3 for an expanded configuration was selected via Mode Byte 2.

Input frame:

M o d B _ 1 7 6 5 4 3 2 1

0

C O M 0 > _

6.1.2 Configuration of the Data String (Mode Byte)

The received time information can be transmitted via the interfaces in several data strings
with indication of the internal synchronization status of the clock.

By this means it is possible for the user to synchronize connected computer equipment with
a highly precise time. The respectively desired transmission point of time, string construction
and the control characters used can be selected via the data in Mode Bytes 1 and 2.

The SET menu for the Mode Bytes can be reached via the following key combination:

 Key ENT
 Key 1 for SET menu
 Pressing Key N until the following menu appears

or

and in addition a Mode Byte 3 is available for special strings

 Key Y

The input mask for the Mode Byte appears:

The cursor now lies under bit position 7. Each bit should be understood to be a switch with
which settings can be made in the operating type (mode) of the serial interface. Depending
on the desired serial interface operating type the following entries must be made under the
bit positions:

 0 - for switch off or
 1 - for switch on

The meanings of the individual bit positions (switches) are described in the following chap­ters.

84 / 157 System 6844(RC) - V03.00

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COM0 / COM1 SERIAL INTERFACES

Bit Position 7

Time Zone

off

UTC (Universal Coordinated Time)

on

Local time

Bit Position 6

Second Forerun

off

With second forerun

on

Without second forerun

Bit Position 5

off

Not assigned

on

Not assigned

Bit Position 4

Control Character at Second Change

off

With control character at second change

on

Without control character at second change

This function is usually used in conjunction with the "with second forerun"
setting.

Bit Position 3

Control Characters CR and LF

off

LF/CR sequence as in string description

on

LF/CR sequence reversed from string description

Bit Position 2

Transmission Delay

off

With delayed transmission

on

Without delayed transmission

6.1.2.1 Mode Byte 1 / Bit7 - Local Time or UTC in the Serial Output

6.1.2.2 Mode Byte 1 / Bit 6 - Serial Output Second Forerun

See also Chapter 6.2 Data String Transmission Points of Time.

6.1.2.3 Mode Byte 1 / Bit 5 - Bit 5 currently no function

6.1.2.4 Mode Byte 1 / Bit 4 - Last Control Character at Second Change (On-Time Mark)

The last control character (see data string construction) can be transmitted exactly at the
next second change with this setting.

See also Chapter 6.2 Data String Transmission Points of Time.

6.1.2.5 Mode Byte 1 / Bit 3 - Reverse Control Characters CR and LF

The character sequence CR and LF can be reversed with this switch.

6.1.2.6 Mode Byte 1 / Bit 2 - Delayed Transmission

The last character of the data string is transmitted directly at the second change and imme­diately thereafter the new data string, which is valid for the next second change, is transmit­ted with the setting "Control Character at Second Change". This can be interpreted as an er­ror on some computers with a high working load. With Bit Position 2, transmission of the new
data string can be delayed dependent on the baud rate.

See also Chapter 6.2 Data String Transmission Points of Time.

System 6844(RC) - V03.00 85 / 157

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COM0 / COM1 SERIAL INTERFACES

Milliseconds

With delay

Without delay

000

End character ( ETX)

End character ( ETX)

002

–

New data string

025

–

End new data string

930

New data string

–

955

End new data string

–

000

End character (ETX)

End character (ETX)

Milliseconds

With delay

Without delay

000

End character ( ETX)

End character ( ETX)

002

–

New data string

105

–

End new data string

810

New data string

–

913

End new data string

–

000

End character (ETX)

End character (ETX)

Bit 1

Bit 0

Transmission Point of Time

off

off

Transmit every second

off

on

Transmit on minute change

on

off

Transmit on hour change

on

on

Transmit on enquiry only

Bit 7

Output Mode

off

Output: Data String

on

Output: Pulses

When the pulse output is activated, all other serial interface settings are
ignored.

Bits B6-B4 are not currently assigned and must be set to off.

Example:
Baud rate 9600 baud

Baud rate 2400 baud

6.1.2.7 Mode Byte 1 / Bit1-Bit0 - Data String Transmission Point of Time

6.1.2.8 Mode Byte 2 / Bit7: Output Mode DATA STRING / PULSES

6.1.2.9 Mode Byte 2 / Bit6-Bit0 - Data String Selection

The transmitted data string is set with this Mode Byte. In this regard, account must be taken
of Mode Byte 2 setting bit 7 (see Chapter 6.1.2.8 Mode Byte 2 / Bit7: Output Mode DATA
STRING / PULSES).

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COM0 / COM1 SERIAL INTERFACES

Bit Position

3 2 1 0 Data String Construction

off

off

off

off

hopf

Standard String (6021) respectively NTP

off

off

off

on

hopf

2000 - 4 digit year output

off

off

on

off

hopf

Master/Slave-String

off

off

on

on

SINEC H1

off

on

off

off

T-String

off

on

off

on

IBM Sysplex Timer Model 1+2 and respectively TimeServ

off

on

on

off

ALOHA

off

on

on

on

SINEC H1 Extended

on

off

off

off

NMEA - GPRMC

on

off

off

on

SAT 1703 Time String

on

off

on

off

NMEA - GPZDA

on

off

on

on

GPS2000

on

on

off

off

IEC-103 (ASDU Type 6)

on

on

off

on

ABB-SPA

on

on

on

off

SPT-String

The

hopf

Master/Slave-String is always transmitted if a data string that is

not assigned in the System is selected

Bits B6-B4 are not currently assigned and must be set to off.

Bit Position

3 2 1 0 Pulse

off

off

off

off

IRIG-B.(1)

off

off

off

on

IRIG-B.(2)

[1]

off

off

on

off

DCF77.SYS

off

off

on

on

DCF77.ADD

[1]

off

on

off

off

RC-Pulse IMP1

[1]

off

on

off

on

RC-Pulse IMP2

[1]

off

on

on

off

RC-Pulse IMP3

[1]

off

on

on

on

RC-Pulse IMP4

[1]

on

off

off

off

Frequency 1

[1]

on

off

off

on

Frequency 2

[1]

on

off

on

off

SystemPPS

on

off

on

on

Sync-Source PPS / DCF77 pulse (e.g.. PPS from GPS)

A 2Hz disturbing signal is always transmitted if a pulse is selected that is
not available in the System, or not assigned

6.1.2.10 Mode Byte 2 / Bit6-Bit0: Pulse Selection

The transmitted pulse is set with this Mode Byte. In this regard, account must be taken of
Mode Byte 2 setting bit 7 (see Chapter 6.1.2.8 Mode Byte 2 / Bit7: Output Mode).

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[1]

Optional functions, dependent on the software / hardware configuration.

Elektronik GmbH

COM0 / COM1 SERIAL INTERFACES

6.1.2.11 Mode Byte 3 / Bit7-Bit0

The configuration of Mode Byte 3 is dependent on the preset data string. Explanations about
this are given in the relevant chapter concerning the data string.

6.1.3 Serial Data String Request

Serial data string requests that are not included in this Chapter are described under Data
Strings.

6.1.3.1 Serial Requests with ASCII Characters (

The transmission of a data string can also be triggered by the user on enquiry by means of
an ASCII character. The following characters trigger the transmission of the standard string:

 ASCII "D" - for Time / Date (Local Time)
 ASCII "G" - for Time / Date (UTC Time)

The System answers within 1msec. with the corresponding data string.
Since this is often too fast for the requesting computer, it is also possible to realize a re-

sponse delay in 10msec. steps on request via software. For the delayed transmission of the
data string, the requesting computer transmits the lower case letters "d, g" to the clock with a
two position multiplication factor.

The clock interprets the multiplication factor as a hexadecimal value.

Example:

The computer transmits ASCII gFF (Hex 67, 46, 46)
The clock transmits the Time / Date (UTC Time) data string after approx. 2550 milliseconds.

hopf

Standard and

hopf

2000)

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COM0 / COM1 SERIAL INTERFACES

PPS

t/sec

59 00 01

control character
at second change:

second forerun:
transmission delay:

OFF

OFF

OFF

ETX

STX

time information

of 59 second

th

ETX

STX

time information

of 1 second

st

ETX

STX

time information

minute change

TxD

t/sec

59 00 01

ETX

STX

time information

minute change

ETX

STX

time information

of 2 second

nd

ETX

STX

time information

of 1 second

st

control character
at second change:

second forerun:
transmission delay:

OFF

ON

OFF

TxD

t/sec

59 00 01

ETX

STX

time information

minute change

ETX

STX

time information

of 2 second

nd

ETX

STX

time information

of 1 second

st

time information

of zero second

control character
at second change:

second forerun:
transmission delay:

ON

ON

OFF

TxD

t/sec

59 00 01

STX

time information

of 2 second

nd

30,60

ETX

STX

time information

minute change

ETX

ETX

STX

time information

of 1 second

st

delay depending

on baud rate

30,60

delay depending

on baud rate

control character
at second change:

second forerun:
transmission delay:

ON

ON

ON

TxD

t/sec

59 00 01

6.2 Data String Transmission Points of Time

STX  Start of Text
ETX  End of Text

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COM0 / COM1 SERIAL INTERFACES

Automatic:

Automatic string settings are set “automatically“ by the System

immediately after the selection of a data string. Customer settings
are not required.

Required:

Required string settings must be set by the customer after selec­tion of a data string in the Mode Byte.

Blocked:

Blocked settings are not permissible for a data string. The Sys­tem does not accept such an input and the data string is transmit­ted without an error message and with the previously set parame­ters.

6.3 Data Strings

This Chapter describes the data strings supported by this System.

6.3.1 General Information about Data Output of Board 6844(RC)

When "last control character at second change" is set there is a transmission gap of up to
970msec., depending on the baud rate. This should be taken into consideration when pro­gramming the time-out on the reception side.

The output of control characters CR and LF can be reversed with Mode Byte 1 on all data
strings
(see chapter 6.1.2.5 Mode Byte 1 / Bit 3 - Reverse Control Characters CR and LF).

Possible string-specific settings are specified for all data strings.
These are differentiated as follows:

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COM0 / COM1 SERIAL INTERFACES

Automatic:

no

Required:

no

Blocked:

no

Character No.

Meaning

Hex-Value

1

STX (start of text)

$02 2 status (internal clock status)

$30-39, $41-46

3

day of the week (1=Monday ... 7=Sunday)
for UTC time bit 3 is set to 1 in the day of the
week

$31-37

4

tens hour

$30-32

5

unit hour

$30-39

6

tens minute

$30-35

7

unit minute

$30-39

8

tens second

$30-36

9

unit second

$30-39

10

tens day

$30-33

11

unit day

$30-39

12

tens month

$30-31

13

unit month

$30-39

14

tens year

$30-39

15

unit year

$30-39

16

LF (line feed)

$0A

17

CR (carriage return)

$0D

18

ETX (end of text)

$03

b3

b2

b1

b0

Meaning

Status:

x x x 0

no announcement hour

x x x 1

announcement (DST changeover)

x x 0 x

standard time

x x 1 x

daylight saving time (DST)

0 0 x x

time / date invalid

0 1 x x

crystal operation

1 0 x x

radio operation

1 1 x x

radio operation (high accuracy)

6.3.2

hopf

Standard String (6021)

Below the

hopf

Standard String is described.

6.3.2.1 Specified Settings

6.3.2.2 Structure

6.3.2.3 Status

The second and the third ASCII-character contain the status and the day of the week.
The status is decoded binary.

System 6844(RC) - V03.00 91 / 157

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COM0 / COM1 SERIAL INTERFACES

Day of the Week:

0 x x x

CEST / CET

1 x x x

UTC - time

x 0 0 1

Monday

x 0 1 0

Tuesday

x 0 1 1

Wednesday

x 1 0 0

Thursday

x 1 0 1

Friday

x 1 1 0

Saturday

x 1 1 1

Sunday

Status

operation mode

time

announcement SZ-WZ-SZ

0 = 0000

time invalid

winter

no announcement

1 = 0001

time invalid

winter

announcement

2 = 0010

time invalid

summer

no announcement

3 = 0011

time invalid

summer

announcement

4 = 0100

quartz

winter

no announcement

5 = 0101

quartz

winter

announcement

6 = 0110

quartz

summer

no announcement

7 = 0111

quartz

summer

announcement

8 = 1000

radio

winter

no announcement

9 = 1001

radio

winter

announcement

A = 1010

radio

summer

no announcement

B = 1011

radio

summer

announcement

C = 1100

radio

winter

no announcement

D = 1101

radio

winter

announcement

E = 1110

radio

summer

no announcement

F = 1111

radio

summer

announcement

6.3.2.4 Example

92 / 157 System 6844(RC) - V03.00

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(STX)E4123456180702(LF)(CR)(ETX)

 It is Thursday 18.07.2002 - 12:34:56 o'clock.
 radio operation (high accuracy)
 daylight saving time
 no announcement of a changeover
 ( ) - ASCII-control characters e.g. (STX)

COM0 / COM1 SERIAL INTERFACES

Automatic:

no

Required:

no

Blocked:

no

Character No.

Meaning

Hex-Value

1

STX (start of text)

$02 2 status (internal clock status)

$30-39, $41-46

3

day of the week (1=Monday ... 7=Sunday)
for UTC time bit 3 is set to 1 in the day of the
week

$31-37

4

tens hour

$30-32

5

unit hour

$30-39

6

tens minute

$30-35

7

unit minute

$30-39

8

tens second

$30-36

9

unit second

$30-39

10

tens day

$30-33

11

unit day

$30-39

12

tens month

$30-31

13

unit month

$30-39

14

thousandths year

$31-32

15

hundreds year

$30, $39

16

tens year tens digit

$30-39

17

unit year unit digit

$30-39

18

LF (line feed)

$0A

19

CR (carriage return)

$0D

20

ETX (end of text)

$03

6.3.3

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2000 - 4 Digit Year Output

Below the data string

hopf

The structure of the data string is the same as the standard string and differs only in as much
as the year is transmitted with 4 digits.

6.3.3.1 Specified Settings

6.3.3.2 Structure

2000 - 4 Digit Year Output is described.

System 6844(RC) - V03.00 93 / 157

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COM0 / COM1 SERIAL INTERFACES

b3

b2

b1

b0

Meaning

Status:

x x x 0

no announcement hour

x x x 1

announcement (DST changeover)

x x 0 x

standard time

x x 1 x

daylight saving time (DST)

0 0 x x

time / date invalid

0 1 x x

crystal operation

1 0 x x

radio operation

1 1 x x

radio operation (high accuracy)

Day of the Week:

0 x x x

CEST / CET

1 x x x

UTC - time

x 0 0 1

Monday

x 0 1 0

Tuesday

x 0 1 1

Wednesday

x 1 0 0

Thursday

x 1 0 1

Friday

x 1 1 0

Saturday

x 1 1 1

Sunday

6.3.3.3 Status

The second and the third ASCII-character contain the status and the day of the week. The
status is decoded binary. Structure of these characters :

6.3.3.4 Example

(STX)E412345618072002(LF)(CR)(ETX)

 It is Thursday 18.07.2002 - 12:34:56 o'clock
 radio operation (high accuracy)
 daylight saving time
 no announcement of a changeover
 ( ) - ASCII-control characters e.g. (STX)

94 / 157 System 6844(RC) - V03.00

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COM0 / COM1 SERIAL INTERFACES

Automatic:

no

Required:

The following settings are required for the synchronisation of the

hopf_

slave-systems:

 Normally points of time every minute, depending on system

also every second

 output second forerun
 ETX on the second change; selectable: data string at the be-

ginning or at the end of the 59. second.

 local time
 9600 baud, 8 bit, 1 stop bit, no parity

This setting guarantees the best control of the time basis in the
slave systems.

Blocked:

no

6.3.4

hopf

The

hopf

Master/Slave-String

Master/Slave-String can be used to synchronise slave systems with the time data

of the master system.
The

hopf

Master/Slave-String transmits:

 the full time information (hour, minute, second)
 the date (day, month, year [2 digits])
 the difference time local to UTC (hour, minute)
 the day of the week
 status information (announcement of DST changeover, announcement of a leap

second and the status of reception of the

6.3.4.1 Specified Settings

hopf

Master/Slave-String source)

System 6844(RC) - V03.00 95 / 157

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COM0 / COM1 SERIAL INTERFACES

Character No.

Meaning

Hex-Value

1

STX (start of text)

$02 2 status

$30-39, $41-46

3

day of the week

$31-37

4

tens hour

$30-32

5

unit hour

$30-39

6

tens minute

$30-35

7

unit minute

$30-39

8

tens second

$30-36

9

unit second

$30-39

10

tens day

$30-33

11

unit day

$30-39

12

tens month

$30-31

13

unit month

$30-39

14

tens year

$30-39

15

unit year

$30-39

16

difference time tens hour / operational sign

$30-31, $38-39

17

difference time unit hour

$30-39

18

difference time tens minutes

$30-35

19

difference time unit minutes

$30-39

20

LF (line feed)

$0A

21

CR (carriage Return)

$0D

22

ETX (end of text)

$03

Data String

Tens Difference

Time Nibble

Difference Time

(STX)831234560301960300(LF)(CR)(ETX)

0000

- 03:00h

(STX)831234560301961100(LF)(CR)(ETX)

0001

- 11:00h

(STX)831234560301968230(LF)(CR)(ETX)

1000

+ 02:30h

(STX)831234560301969100(LF)(CR)(ETX)

1001

+ 11:00h

6.3.4.2 Structure

The difference time is transmitted in hours and minutes following the year. The transmission
is done in BCD. The difference time may be up to ± 14.00h.

The operational sign is shown as the highest bit in the hours.

logic 1 = local time before UTC
logic 0 = local time after UTC

Example:

96 / 157 System 6844(RC) - V03.00

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COM0 / COM1 SERIAL INTERFACES

b3

b2

b1

b0 Meaning

Status:

x x x 0

no announcement hour

x x x 1

announcement (DST changeover)

x x 0 x

standard time

x x 1 x

daylight saving time (DST)

x 0 x x

no announcement leap second

x 1 x x

announcement leap second

0 x x x

crystal operation

1 x x x

radio operation

Day of the Week:

0 0 0 1

Monday

0 0 1 0

Tuesday

0 0 1 1

Wednesday

0 1 0 0

Thursday

0 1 0 1

Friday

0 1 1 0

Saturday

0 1 1 1

Sunday

Status

Operating Mode

Time

DST changeover

Leap Second

0 = 0000

quartz

standard time

no announcement

no announcement

1 = 0001

quartz

standard time

announcement

no announcement

2 = 0010

quartz

DST

no announcement

no announcement

3 = 0011

quartz

DST

announcement

no announcement

4 = 0100

quartz

standard time

no announcement

announcement

5 = 0101

quartz

standard time

announcement

announcement

6 = 0110

quartz

DST

no announcement

announcement

7 = 0111

quartz

DST

announcement

announcement

8 = 1000

radio

standard time

no announcement

no announcement

9 = 1001

radio

standard time

announcement

no announcement

A = 1010

radio

DST

no announcement

no announcement

B = 1011

radio

DST

announcement

no announcement

C = 1100

radio

standard time

no announcement

announcement

D = 1101

radio

standard time

announcement

announcement

E = 1110

radio

DST

no announcement

announcement

F = 1111

radio

DST

announcement

announcement

6.3.4.3 Status

DST = daylight saving time

6.3.4.4 Example

(STX)841234561807028230(LF)(CR)(ETX)

 It is Thursday 18.07.2002 - 12:34:56 o'clock
 radio operation
 standard time
 no announcement of a changeover
 The difference time to UTC is +2.30 h

System 6844(RC) - V03.00 97 / 157

hopf

Elektronik GmbH

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

COM0 / COM1 SERIAL INTERFACES

Automatic:

no

Required:

no

Blocked:

no

Character No.

Meaning

Hex-Value

1

STX (start of text)

$02 2 "D" ASCII D

$44 3 ":" colon

$3A 4 tens day

$30-33

5

unit day

$30-39

6

"." point

$2E 7 tens month

$30-31

8

unit month

$30-39

9

"." point

$2E

10

tens year

$30-39

11

unit year

$30-39

12

";" semicolon

$3B

13

"T" ASCII T

$54

14

":" colon

$3A

15

day of the week

$31-37

16

";" semicolon

$3B

17

"U" ASCII U

$55

18

":" colon

$3A

19

tens hour

$30-32

20

unit hour

$30-39

21

"." point

$2E

22

tens minute

$30-35

23

unit minutes

$30-39

24

"." point

$2E

25

tens second

$30-36

26

unit second

$30-39

27

";" semicolon

$3B

28

"#" or space

$23 / $20

29

"*" or space

$2A / $20

30

"S" or space

$53 / $20

31

"!" or space

$21 / $20

32

ETX (end of text)

$03

6.3.5 SINEC H1

Below the data string SINEC H1 is described.

String request

The data string SINEC H1 can also send by request. The time of output will be set to "send
only by request" and the string will be requested with the ASCII character "?".

6.3.5.1 Specified Settings

6.3.5.2 Structure

98 / 157 System 6844(RC) - V03.00

hopf

Elektronik GmbH

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

COM0 / COM1 SERIAL INTERFACES

6.3.5.3 Status

The characters 28-31 in the data string SINEC H1 tell the synchronisation status of the clock.

The characters mean the following:

character no. 28 = "#" no radio synchronisation after reset, time invalid

" " (space) radio synchronisation after reset, clock in crystal operation

character no. 29 = "*" time from internal crystal in the clock

" " (space) time by radio reception

character no. 30 = "S" daylight saving time

" " (space) standard time

character no. 31 = "!" announcement of a DST or standard time changeover

" " (space) no announcement

6.3.5.4 Example

(STX)D:18.07.02;T:4;U:12.34.56; _ _ _ _ (ETX) ( _ ) = Space

 It is Thursday 18.07.02 - 12:34:56 o'clock
 radio operation
 standard time
 no announcement of a changeover

System 6844(RC) - V03.00 99 / 157

hopf

Elektronik GmbH

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

COM0 / COM1 SERIAL INTERFACES

Automatic:

no

Required:

no

Blocked:

no

Character No.

Meaning

Hex-Value

1

"T" ASCII T

$54 2 ":" colon

$3A 3 tens year

$30-39

4

unit year

$30-39

5

":" colon

$3A 6 tens month

$30-31

7

unit month

$30-39

8

":" colon

$3A

9

tens day

$30-33

10

unit day

$30-39

11

":" colon

$3A

12

tens day of the week

$30

13

unit day of the week

$31-37

14

":" colon

$3A

15

tens hour

$30-32

16

unit hour

$30-39

17

":" colon

$3A

18

tens minute

$30-35

19

unit minute

$30-39

20

":" colon

$3A

21

tens second

$30-36

22

unit second

$30-39

23

CR (carriage return)

$0D

24

LF (line feed)

$0A

6.3.6 T-String

Below the T-String is described.
The T-string can be transmitted in all modes (e.g. forerun or last control characters on the

second change). The data string can be requested by "T".

6.3.6.1 Specified Settings

6.3.6.2 Structure

6.3.6.3 Status

6.3.6.4 Example

100 / 157 System 6844(RC) - V03.00

hopf

Nottebohmstr. 41 • D-58511 Lüdenscheid • Tel.: [phone] • Fax: [phone] • Internet: http://www.hopf.com • E-Mail: [e-mail]

No status contained in the T-String.

T:02:07:18:04:12:34:56(CR)(LF)

 It is Thursday 18.07.02 - 12:34:56 o'clock

Elektronik GmbH