INFICON LDS3000 User Manual

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PROTOCOL DESCRIPTIONS

Type designation

LDS3000

Product description Interface Protocols

Catalog no.

from software version

Document no.

560-310, 560-315

MS Module 1.0

jira54e1-a (1212)

This document applies to the software version stated on the cover page. If you need a different version, please contact our sales staff.

Reprint, translation and duplication need to be approved in writing by INFICON GmbH.

Content

1 Interface Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Serial Interface Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Field Bus Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 ASCII Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Comparison between ASCCI- and LD protocol . . . . . . . . . . . . . . . . . . 7

2.2 Communication Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.6 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3 LDS1000 Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1 Interface Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 Main functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.2 Status Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.2.3 Request for Measurement Data . . . . . . . . . . . . . . . . . . . . . . 20

3.2.4 Entry of Instrument Settings . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2.5 Running of service functions . . . . . . . . . . . . . . . . . . . . . . . . . 23

4 Binary Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . 24

4.1 Communication Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.3 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5 LD Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.1 Communication Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2 Command format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.1 Telegram structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.4 Enumerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.5 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6 Fieldbus Communication . . . . . . . . . . . . . . . . . . . . . . . 49

6.1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.3 Process Data Mapping for Cyclic Data Transfer . . . . . . . . . . . . . . . . . 49

6.3.1 Write Process Data (PLC-> Leak Detector) . . . . . . . . . . . . . 49

6.3.2 Read Process Data (Leak Detector PLC) . . . . . . . . . . . . . 50

Content 3

6.4 Acyclic Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.4.1 Addressing Rules for Acyclic Access . . . . . . . . . . . . . . . . . . . 51

6.5 Hardware Configuration for Profibus . . . . . . . . . . . . . . . . . . . . . . . . . . 52

6.5.1 Assignment of the PROFIBUS Address . . . . . . . . . . . . . . . . 52

6.5.2 Diagnosis with the CU1000 Info Menu . . . . . . . . . . . . . . . . . 53

6.5.3 Serial communication via RS232 (common) . . . . . . . . . . . . . 53

6.5.4 ASCII Protocol specific . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.5.5 LD Protocol specific . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

4 Content

Content 5

1 Interface Protocols

1.1 Serial Interface Protocols

With the IO1000 module you can communicate with the LDS3000 via the following serial interface protocols:

• ASCII Protocol (enabled by default)

• LD Protocol

If you want to replace a LDS1000 or LDS2010 with a LDS3000 you can also use

• Binary Interface Protocol

• LDS1000 Compatibility Protocol

Do not use the last two protocols for new developments. They have limited functional range and may not be supported in future.

The serial interface protocol can be selected via DIP switch at the IO module IO1000 or via control unit CU1000. Please refere to appropriate documentation.

1.2 Field Bus Protocols

With the Bus module BM1000 you can communicate with the LDS3000 via the following field bus protocols:

• PROFIBUS-DP Protocol

• Other fieldbus protocols (PROFINET, DeviceNet, EtherNet/IP, MODBUS RTU, MODBUS TCP, CANopen, EtherCAT, CC-Link, ControlNet) may be available on request. Please contact your local INFICON representative.

6 Interface Protocols

2 ASCII Protocol

2.1 Comparison between ASCCI- and LD protocol

ASCII- and LD protocol have nearly the same functional range, but each of them have some advantages and disadvantages :

ASCII protocol:

Advantages:

• human readable

• easy to use with simple terminal program

Disadvantages:

• No checksum, therefor lower data security

• PC/ PLC software must convert numerical values from ASCII string to binary

• Lower efficiency (for example: 8 data bytes for one float value)

LD protocol:

Advantages:

• Leak detector status always transmitted in each slave telegram

• High data security due to CRC checksum

• Binary transmission of numerical values – no conversion needed in PC/ PLC software

• High efficiency (for example: 4 Byte data bytes for one float value)

Disadvantages:

• Not human readable

• Not useable with simple terminal program

2.2 Communication Parameters

Data format

Baudrate 19.200, 8 data bits, 1 stop bit, no parity

2.3 Command Format

In ASCII protocol any command starts with « * » (ASCII code 42dec/2Ahex) and is finished with the end sign CR (ASCII code 13dex/0Dhex). There is no differentiation between upper and lower case. A blank is required between the command and the parameter, no other blanks are allowed.

There is a short and an extended form of the command. Either the short or the extended command must be used, no other abbreviations are allowed (The short form is here written in capitals but the SW don’t difference upper and lower cases). Command Words have to be separated by a colon. A command can be composed of up to three words. Parameters have to be separated by a comma.

ASCII Protocol 7

Each command is answered with the requested data, „ok“ or „EXX“ (in case of an error). For a list of all error messages 2.6. The transmission can be cancelled and the receive-buffer will be cleared with ESC (ASCII code 27dec/1Bhex), ^C (ASCII code 3dec/03hex) or ^X (ASCII code 24dec/18hex).

Some commands can be used as queries, some can be used to set menu parameter and some can be used for both. A query is marked by a „?“ (ASCII code 63dec/ 3Fhex) after the command; for setting data the command has to be followed by the new value to be set.

Parameter can be Boolean or numerical:

<b> Boolean 0 / 1 or OFF / ON <No> Numeric representation format: integer, real (15.6) or exponential (4.5

Format: [space] [sign] [ddd] [.] [e[sign]ddd] (d:digit)

Notice Always use a point as the decimal marker. If a comma is used during

numerical data entry, the conversion of the number is cancelled at this point and only the integer part of the number will be used.

Timing recommendations for the PC/PLC - Program:

Sample rate > 100 ms

Timeout between request to and answer from LDS3000: 1500 ms

After sending a command the answer must be waited for before sending a new command. Otherwise the receive buffer may be overwritten.

2.4 Commands

Relates to

LD cmd. no.

*CLS Clear Error 5 S *IDN Identification

:CRC check sum 320 R :DEVice name of instrument 301 R :VERsion software version MSB 310 R :SERial serial-number leak detector R :TURBO software version TMP controller 315 R :DIP1 MSB DipSwitch 1 (binär) 321 R :DIP2 MSB DipSwitch 2 (binär) 321 R :CUversion software version control unit 314 R :IOversion software version I/O modul 313 R :TCHARDware hardware version TMP controller 316 R :TCNAME TMP controller name 317 R :BMVersion software version Bus modul R :BMSerial serial-number Bus modul R :BMNETType Bus module network type R

*STATus

status of LDS2010 (

EMIOFF)

ACCL, STBY, MEAS, CAL, ERROR,

Status word

-7

)

Read /

Set

8 ASCII Protocol

:CAL

:CALHist

:ERRor

:ERRHist

status of calibration

DYNCAL, CLOSE, FAIL)

(IDLE, INTCAL, EXTCAL,

Last error history entry Factor, Test leak, Anode voltage, Mass, Date,

Time, Cathode, State 1 Calibration history entry 1 (newest) 2 Calibration history entry 2 … 10 error history entry 10 (oldest)

current number of error / warning („NO ERROR/

WARNING“, 3-digit failure number)

Actual error history entry

In LDS2010 compatibility mode:

dd.mm.yy hh.mm Exx

Exx is error number from LDS2010 error number

group

All other compatibility modes:

ListNo 'ERR' or 'WRN' ErrNo ErrValue(float),

year/month/day hour:min:sec 'SwOnCnt:'

SwitchOnCnt 'OnTm:' MinSinceStart

“WRNxxx vvv yy/mm/dd hh:mm:ss SwOnCnt:

zzz OnTm: ttt“

“ERRxxx vvv yy/mm/dd hh:mm:ss SwOnCnt: zzz

OnTm: ttt“

Relates to

LD cmd. no.

260 R

275 R

290 R

Read /

Set

xxx: Error or warning number from LDS3000

error number group

vvv: Measured value 1 error history entry 1 (newest) 290 R 2 error history entry 2 290 R

.....

16 error history entry 16 (oldest) 290 R

:MODE actual vacuum mode (VAC, SNIFF) 401 R :ZERO Zero (ON, OFF) 6 R

status of valves

0...255 as 8-bit binary number

:VALVE

(0:off; 1:on)

Bit0: Test leak

449 R

Bit4: Sniffer valve

Bit1: Gas ballast

status of trigger

:TRIGger

S1,S2,S3,S4 with S1…S4 is “ON” or “OFF”

385 R

depending of the states of trigger1 to trigger4

ASCII Protocol 9

Relates to

LD cmd. no.

:PREAMPRESi stor

:CAThode

:BUSModule

:EXCEPtion Exception Code of Bus module as hex value R

:ERRORCnt

:ADDRess Field bus address R :BAUDrate Baud rate at field bus R

*READ leak rate in current unit 128 R

:ATM*cc/s leak rate in Atm*cc/s --- R :G/a leak rate in g/a (only in sniff) --- R :MBAR*l/s leak rate in mbar*l/s 129 R :PA*m3/s leak rate in Pa*m3/s --- R :PPM leak rate in ppm (only in sniff) --- R

:TORR*l/s leak rate in Torr*l/s --- R *STArt start 1 S *STOp stop 2 S *CAL :STOP abort calibration 11 S

:INT start internal calibration 4 S

:DYN start external dynamic calibration 4 S

:EXT start external calibration 4 S

:CLOSED report test leak closed (ext. cal. only) 11 S *ZERO switch zero on 6 S

:ON switch zero on 6 S

:OFF switch zero off 6 S *MEAS

:P or :P1 P1 pressure in current unit 130 R

:ATM P1 pressure in atm --- R :MBAR P1 pressure in mbar 83 R :PA P1 pressure in Pa --- R :TORR P1 pressure in Torr --- R

:P2 P2 pressure in current unit 132 R

:ATM P2 pressure in atm --- R :MBAR P2 pressure in mbar 133 R :PA P2 pressure in Pa --- R

currently used resistance of pre-amplifier (13M, 470M, 15G, 500G, 13M_FIXED, 470M_FIXED, 15G_FIXED, 500G_FIXED)

actual state of the cathode OFF, ON1 (fix cathode 1), ON2 (fix cathode 2), AUTO1 / AUTO2 (automatic switching; cathode 1 respectively 2 actual active)

Status Bus-Modul “SETUP”,"NW_INIT”, "WAIT_PROCESS","IDLE", "PROCESS_ACTIVE","ERROR", "UNKNOWN", "EXCEPTION"

Four error counters, format “a,b,c,d” a: Discarded commands b: Discarded responses c: Serial reception errors d: Fragmentation errors

502 R

530 R

330 R

Read /

Set

10 ASCII Protocol

Relates to

LD cmd. no.

:TORR P2 pressure in Torr --- R :P3 P3 pressure (only for service) 134 R :P4 P4 pressure (only for service) 135 R :UVV preamplifier voltage [V] 202 R :MIAP anode potential [V] 167 R :MIKP cathode potential [V] 168 R :MISP suppressor potential [V] 169 R :MIAKP anode-/cathode potential [V] 170 R :U15N -15 V supply [V] 211 R :U15P +15 V supply [V] 210 R :U24 24 V supply [V] 200 R :U24IO 24 V supply IO [V] 213 R :U24IO_OUT 24V power out IO [V] 219 R :U24PI 24 V power out pirani [V] 214 R :U24PWR1_2 24 V power out12 [V] 215 R :U24PWR5_6 24 V power out56 [V] 217 R :U24RC 24V_2 power out RC [V] 212 R :U5 +5 V supply [V] 218 R :TEMPeratur

:Amplifier preamplifier temperature [°C] 166 R

:Electronic electronic temperature [°C] 165 R

:TCElectronic TMP electronic temperature [°C] 144

:TCPump TMP temperature bottom [°C] 143 R

:TCBearing TMP temperature bearing [°C] 145 R

:TCMotor TMP electronic temperature [°C] 146 R :TURBO

:Frequency TMP frequency [Hz] 138 R

:Voltage TMP voltage [Hz] 150 R

:Current TMP current [A] 151 R

:Power TMP power [W] 139 R :ANALOGOUT

1 :ANALOGOUT 2

Output voltage analog output channel 1 221 R

Output voltage analog output channel 2 221 R

Read /

Set

ASCII Protocol 11

*CONFig

Relates to

LD cmd. no.

state of the PLC inputs as 16-bit binary number; inactive=0, active=1 Byte 0, Bit 0: PLC In 1 Byte 0, Bit 1: PLC In 2 Byte 0, Bit 2: PLC In 3 Byte 0, Bit 3: PLC In 4 Byte 0, Bit 4: PLC In 5 Byte 0, Bit 5: PLC In 6

:DIGITALIN

:IMess Unfiltered ion current [A] 1568 R

:CALleak leak rate of test leak

:INT internal test leak in mbarl/s 394 R/S

:EXTVac

:EXTSniff external test leak in sniff mode in current sniff unit 392 R/S

:CALREQ

:CAThode

:RS232 Protocol (ASCII, LD, LDS1000) 26 R/S :MASS mass (2,3,4) 506 R/S :MFAE actual anode potential reference [V] 167 R

:M2 anode potential reference for mass 2 [V] 433 R/S :M3 anode potential reference for mass 3 [V] 434 R/S

:M4 anode potential reference for mass 4 [V] 435 R/S :MODE operating mode (VAC, SNIFF) 401 R/S :RECorder

:LINK1

:LINK2

Byte 0, Bit 6: PLC In 7 Byte 0, Bit 7: PLC In 8 Byte 1, Bit 0: PLC In 9 Byte 1, Bit 1: PLC In 10 Byte 1, Bit 2: DIP_1 Byte 1, Bit 3: DIP_2: Byte 1, Bit 4: DIP_3: Byte 1, Bit 5: DIP_4 Byte 1, Bit 6: DIP_5

external test leak in vacuum mode in current vac unit

calibration request (OFF,ON); with read: (OFF, ON_REQUESTED, ON_NOTREQUESTED)

target state of the cathode OFF (not saved after power loss) ON1 (fix cathode 1) ON2 (fix cathode 2) AUTO (automatic switching cathode) with read: AUTO1 / AUTO2: Auto with cathode 1 respectively 2 actual active

Function at analog output channel 1 (OFF, P1, P2, MANT, EXP, LR_LIN, LR_LOG, LR_LOG_H, EXTERN)

261 R

390 R/S

419 R/S

530 R/S

222 R/S

Read /

Set

12 ASCII Protocol

Relates to

LD cmd. no.

:SCALE Analog out scaling 223 R/S :UPPEREXP Upper Exponent (in mbar*l/s) for analog out 224 R/S

:TRIGger1 trigger1 in current unit 384 R/S

:ATM*cc/s trigger1 in Atm*cc/s --- R/S :G/a trigger1 in g/a --- R/S :MBAR*l/s trigger1 in mbar*l/s 385 R/S :PA*m3/s trigger1 in Pa*m3/s --- R/S :PPM trigger1 in ppm --- R/S :TORR*l/s trigger1 in Torr*l/s --- R/S

:TRIGger2 trigger2 in current unit 384 R/S

:ATM*cc/s trigger2 in Atm*cc/s --- R/S :G/a trigger2 in g/a --- R/S :MBAR*l/s trigger2 in mbar*l/s 385 R/S :PA*m3/s trigger2 in Pa*m3/s --- R/S :PPM trigger2 in ppm --- R/S :TORR*l/s trigger2 in Torr*l/s --- R/S

:TRIGger3 trigger3 in current unit 384 R/S

:ATM*cc/s trigger3in Atm*cc/s --- R/S :G/a trigger3in g/a --- R/S :MBAR*l/s trigger3in mbar*l/s 385 R/S :PA*m3/s trigger3in Pa*m3/s --- R/S :PPM trigger3in ppm --- R/S :TORR*l/s trigger3in Torr*l/s --- R/S

:TRIGger4 trigger4 in current unit 384 R/S

:ATM*cc/s trigger4 in Atm*cc/s --- R/S :G/a trigger4 in g/a --- R/S :MBAR*l/s trigger4 in mbar*l/s 385 R/S :PA*m3/s trigger4 in Pa*m3/s --- R/S :PPM trigger4 in ppm --- R/S :TORR*l/s trigger4 in Torr*l/s --- R/S

:UNIT

:LRVac

:LRSniff

leak rate unit vac mode (ATM*cc/c, MBAR*l/s, PA*m3/s, TORR*l/s)

leak rate unit sniff mode (ATM*cc/c, MBAR*l/s, PA*m3/s, TORR*l/s, ppm, g/a)

431 R/S

432 R/S

:Pressure pressure unit (ATM, MBAR, PA, TORR) 430 R/S :ZEROTime zerotime in seconds (0,5…30s) 411 R/S :CORSTBY R/S :ZEROSTART zero at start (OFF, ON) 409 R/S :SPEEDTMP rotation speed of TMP in Hz 501 R/S :BUTSniffer button of the sniffer probe (OFF, ON) 412 R/S :LRFilter filter switch-over threshold in current leak rate 403 R/S

Read /

Set

ASCII Protocol 13

*HOUR

*FACtor

Relates to

LD cmd. no.

assignment of PLC-outputs "OPEN", “INV_OPEN”, "TRIGGER_1","INV_TRIGGER_1", "TRIGGER_2","INV_TRIGGER_2",

:1 or :1_2 :2 or :3_4 :3 or :5_6

:PLCOUTLINK

:PLCINLINK

:DECADEZero

:DATE date TT,MM,JJJJ 450 R/S :DEVice operating hours of device 142 R :POWer time since switching on (in minutes) 147 R :TIME time hh,mm 450 R/S :TURBO operating hours of TMP 140 R :TC operating hours of converter 141 R

:FACSniff sniff factor 523 R/S :FACMachine machine factor 522 R/S :RESistor resistor factor 500 G / 15 G 504 R/S

:4 or :7_8 :5 or :9_10 :6 or :11_12 :7 or :13_14 :8 or :15_16

:1 :2 :3 :4 :5 :6 :7 :8 :9 :10

"TRIGGER_3","INV_TRIGGER_3", "TRIGGER_4","INV_TRIGGER_4", "READY","INV_READY", "WARNING","INV_WARNING", "ERROR",”INV_ERROR”, “CAL_ACTIVE",“INV_CAL_ACTIVE", "CAL_REQUEST",”INV_CAL_REQUEST”, "RUN_UP", “INV_RUN_UP”, "ZERO_ACTIVE", "INV_ZERO_ACTIVE", “EMISSION_ON", “INV_EMISSION_ON” "MEASURE", “INV_MEASURE”, "STANDBY", “INV_STANDBY”,

"SNIFF", “INV_SNIFF”

assignment of PLC-inputs („NOT_USED“, „DYN_CAL“, „INV_ DYN_CAL “, „EXT_CAL“, „INV_ EXT_CAL “, „INT_CAL“, „INV_ INT_CAL “, „SNIFF“, „INV_ SNIFF“, „START“, „INV_ START “, „STOP“, „INV_ STOP “, „ZERO“, „INV_ZERO“, „ZERO_PULS”, „INV_ ZERO_PULS” “CLEAR”, “INV_CLEAR”, “GAS_BALLAST”, “INV_ GAS_BALLAST ”,"SEL_DYN_NORM", "INV_SEL_DYN_NORM", "START_STOP", "INV_START_STOP", „KEY1”, „INV_ KEY1”, „KEY2”, „INV_ KEY2”, „KEY3”, „INV_KEY3”, )

zero function „NORM“,(„1-2“, “2-3“, „19/20“, „2“, „3-4“)

263 R/S

438 R/S

410 R/S

Read /

Set

14 ASCII Protocol

Relates to

LD cmd. no.

:CALSniff calibration factor sniff 521 R/S :CALVac calibration factor vacuum 520 R/S

*SERVICE

:READBuffer Read service buffer

*STARTFLA SH

*RST :FACTORY Sets all parameters to factory default 1161 S

:CALHistory Clears calibration history 1161 S :ERRORHistory Clears error history 1161 S

Flash-Update starten 2619 S

1300 .. 1310

2.5 Examples

Command answer

*stat? (CR) MEAS (CR) mode *status? (CR) MEAS (CR) mode

*read? (CR) 2.876E-7 (CR)

*read:pa*m3/s? (CR) 2.876E-6 (CR) leak rate in a different unit *start (CR) OK (CR) start measurement *conf:trig1? (CR) 1.0E-9 (CR) retrieve trigger 1 *conf:trig1 2.0E-9 (CR) OK (CR) set trigger 1

leak rate according to programmed unit

Read /

Set

2.6 Error Messages

Message Meaning

OK command completed E01 wrong command start (no „*“) E02 illegal blank E03 command word 1 illegal E04 command word 2 illegal E05 command word 3 illegal E06 control by RS232 not enabled E07 argument faulty E08 no data available E09 error buffer overflow E10 command invalid E11 query not allowed E12 only query allowed E13 not yet implemented

ASCII Protocol 15

3 LDS1000 Protocol

3.1 Interface Parameters

So that the connected instruments (PC) may communicate with the LDS3000, it is required to set-up the interface parameters on the connected instruments.

The settings for the LDS3000 are:

9600 baud, 8 data bits, no parity, 1 stop bit, No handshake and CR as the end sign.

3.2 Interface Commands

The list is ordered to their functions.

The interface commands are composed of the following parts:

Structure

COMMAND <cr>

COMMAND PARAMETER <cr> COMMAND PARAMETER,

PARAMETER <cr>

<cr>: Carriage return (13d)

Example

STOP <cr> G10 <cr>

U24.0 <cr>

There exist several types of command. The main functions of the leak detector are in plain text which points to the function. For example, the command "START <cr>" starts the measurement mode. In response to this command, the PC receives "OK <cr>". A list of the main functions is provided in Chapter 1.4.1.1.

Besides this, conditions may be queried through commands which begin with a "S" for "Status" and which have a parameter attached. A list of all status query commands is given in Chapter 1.4.1.2.

Measurement quantities can be queried through the command "G" for "Get", for example: "G1<cr>". The LDS 3000 will then respond by outputting the current leak rate. All measurement quantities which may be queried are listed in Chapter 1.4.1.3.

If the entry of settings is required in the way normally performed through the menus shown on the Control Unit, the command "U" for "Update" may be used to change the corresponding parameter. The parameter itself may be output via the serial interface through the command "Q" for "Query". For example, "U 0, 1.0E-04<cr>" changes the

level for the first trigger to 1E-4. The commands used to set and query parameters are listed in Chapter 1.4.1.4.

Through "Q 0<cr>" the trigger level can be read.

Less frequently used functions which normally will only be run for servicing can be invoked through the command "F" for "Function". For example: "F10<cr>" switches the emission off. A list of these functions is given in Chapter 1.4.1.5.

During servicing the command "V" for "Valves" may be used to switch the valves. For example: "V 1,0 <cr>" opens the internal calibrated leak.

16 LDS1000 Protocol

Through the reset character <ESC> (27d or 1Bh) without <cr> the interface of the LDS 1000 may be reset back to a defined state. A received string which might be processed at that moment is erased and its processing is terminated. Receiving of the <ESC> character is acknowledged by "OK<cr>" (In the case of the "TERMINAL" program from Microsoft the character "O" is not displayed when the local echo is on). Thereafter, the interface is ready to receive. Through this character its is easily possible to check whether or not the data link has been properly installed.

3.2.1 Main functions

Command Meaning

Reply from the LDS1000

Equivalent to key or PLC input

LR Leak rate, date, time, output status

Start measurement mode,

START

suppress the background which was measured upon operating

OK MEAS active

START Stop the measurement mode,

STOP

display the current background

OK MEAS inactive level ZERO mode on, suppress the

ZERO

background which was measured

OK ZERO active upon operating ZERO

ZERO mode off, display the

ZERO OFF

background which was measured

OK ZERO inactive upon operating ZERO

x1)

CAL

CLEAR

X1*)

Calibration: In the STANDBY mode, the internal calibration is started.

Internal/external calibration OK CAL Interrupt calibration/erase error

status

OK CLEAR active

In the MEASURE mode, the external calibration is started. The status of the external calibration may be queried through S12. Sequence of commands for external calibration:

Command

from the

Meaning

LDS1000

The LDS1000 enters the measurement

1START OK

mode, the calibrated leak must be opened,

wait until the signal has stabilised. 2 CAL OK External calibration is being started. 3 S12 1 External calibration is running.

4S12 2

Calibrated leak must be closed, wait until

the signal is stable. 5 CAL OK Calibration is continued.

Calibration complete, the LDS1000 is in 6S12 0

the measurement mode, the instrument is

running in the MEASUREMENT mode.

The internal calibration process is run automatically. There after, the LDS3000 will be in the STANDBY mode.

LDS1000 Protocol 17

3.2.2 Status Requests

Besides the main functions, there exist a variety of request commands for outputting the status which reflect the current state of the LDS3000.

For example: "S 2<cr>". The LDS3000 replies by: "00000110<cr>", for example. This means that the LDS3000 is in the "Measure" mode.

Status Information:

S3 Relay status xxxx xxxx (always 8 characters) (Byte 0 first)

S4 Exceeding of

S6 Key switch status

S10 Current error

S12 External CAL status

Meaning Representation

xxxx xxxx Byte 0 Byte 1

Instrument status (number)

measurement range limits (leak rate)

Byte 2 Byte 3 Byte 4

Byte 5 Byte 6 BYTE 7

Byte 0: < TRIG 1 Byte 1: < TRIG 2 Byte 2: < TRIG 3 Byte 3: < TRIG 4 Byte 4: Ready Byte 5: always 0 Byte 6: CAL-REQUEST Byte 7: no ERROR Useful when leak rates are uueried through the command G1. 0 - within the measurement range 1 - Underrange. The actual leak rate is below the output value. This may occur in particular after activating the Zero function or when restricting the measurement range through "MANUAL". 2 - Overrange

0 - Key switch defective 1 - No key 2 - Key 1 3 - Key 2 4 - Key 3 0 - no errorr / warning > 0 otherwise error number (not yet acknowledged). See TH ??? Chapter ????. If the error is no longer present, the message may be erased through "CLEAR".

Is used to monitor the calibration process with an external calibrated leak. See also TH ??? Chapter ???. 0 - inactive 1 - active; calibration is running at the moment. 2 - "Close" The external calibrated test leak must be closed and acknowledged through CAL after the signal has stabilised.

(always 8 characters) (Byte 0 right) 0 = VAC 1 = SNIFF always 0 0 = STANDBY 1 = MEASURE 0 = CAL inactive 1 = CAL active refers to external calibration 0 = STANDARD 1 = DYNAMIC

-ACCELERATION FAIL

18 LDS1000 Protocol

Meaning Representation

"Zero"

S14 ZERO status

0 - no correction 1 - a constant leak rate is suppressed

See command Q/U 19

S18 CAL request status

0 - no request 1 - request is present (temperature difference of 5°)

Serviceinformationen, die bei Rückfragen oder im Fehlerfall zur Lösung eines Problems beitragen können S30 software version e.g.:1.00

S31 Serial number xxxxxxxxxxxxxxx S32 Operating hours counter xxxxxx

xy (always 2 characters)

"1" valve open

S35 Valve position

"0" valve closed

Byte x Valve for calibrated leak

Byte y Sniffer valve

See TH ??? Chapter ???.

xxxxxxx (always 7 signs) (Byte 0 first)

Byte 0: Input 7

Byte 1: Input 6

S39

Status of the remote contol inputs

Byte 2: Input 5

Byte 3: Input 4

S41 Preamplifier

S42 Turbo pump

Byte 4: Input 3

Byte 5: Input 2

Byte 6: Input 1

Byte 7: always 0

Amplification of the preamplifier can be changed through F26 … F30. xy

x: Status: 0 - auto, 1 - manuell

y: Amplification: 0 - 13M; 1 - 470M; 2- 15G; 3 0,5T

xxxxx (Byte 0 first)

Byte 0: speed too low

Byte 1: speed too high

Byte 2: always 0

Byte 3: FAIL converter ("1"-Error)

Byte 4: running up/ acceleration

LDS1000 Protocol 19

Meaning Representation

S43 Emission control

S51

S52 Calibration M4 Sniff

S70

S72

S73

Calibration factor M4 Vacuum

Output the number of the current interface error

Output the number of the current error message (except interface errors)

Output the number of the wrong parameter

xxxxx (Byte 0 first)

Byte 0: Status number

Byte 1: Nominal status

0- off, 1 - Standby, 2 -on

Byte 2: Actual status

0 - off, 1 - Standby, 2 -on

Byte 3: Cathode

1 - Cathode 1, 2 - Cathode 2

e.g.: 7.492E-13

"ok", if no error is present.

e.g.: ER53 12.Oct. 11:50

"ok", if no error is present.

3.2.3 Request for Measurement Data

Measurement data can be queried through the command G for "GET".

Command Meaning Representation

G10 Anode potential (MIAP) in volts. e.g.: 457

G11

G12

G13

G19

Measurement data for servicing:

G7 Preamplifier signal (EVS) in volts. e.g.: 01.456

Forevacuum pressure (PV) in volts (1000 mbar: 10.0V). Preamplifier signal (EVS) in volts.

Electronics temperature (ELTA) in °C

Amplifier temperature (EVSTA) in °C

Cathode potential (MIKP) in volts.

Suppressor potential (MISP) in volts. Anode-Cathode potential (MIAKP) in volts. Speed of the turbopump (TMP) in Hz.

Forevacuum pressure (PV) in volts (1000 mbar: 10.0V).

e.g.: 02.629

e.g.: 01.456

e.g.: 23.5

e.g.: 29,2

e.g.: 378

e.g.: 330

e.g.: 79

e.g.: 1048

e.g.: 02.629

20 LDS1000 Protocol

Command Meaning Representation

G10 Anode potential (MIAP) in volts. e.g.: 457

G11 Cathode potential (MIKP) in volts. e.g.: 378

G12

G13

G19

Electronics temperature (ELTA) in °C

Amplifier temperature (EVSTA) in °C

Suppressor potential (MISP) in volts.

Anode-Cathode potential (MIAKP) in volts.

Speed of the turbopump (TMP) in Hz.

3.2.4 Entry of Instrument Settings

The settings of parameters in the control modus "RS232" may be changed via the command "U" for update when the jumper XJ1 has been set to RS232. The parameters may be output via the serial interface through the command "Q" for query. Forexample, "U0, 1.0E-4<cr>" changes the level for the first trigger to 1.0x 10-4.

Through "Q0<cr>" the trigger level can be read.

The settings are each explained in the Technical Handbook jina50e1-a.

In order to use the commands U51 to U66 the password needs to be entered.

e.g.: 23.5

e.g.: 29,2

e.g.: 330

e.g.: 79

e.g.: 1048

Command Meaning Representation

Q/U0 Trigger 1 in current unit e.g.: 1.0E-5

Q/U1 Trigger 2 in current unit e.g.: 1.0E-5

Q/U2 Trigger 3 in current unit e.g.: 1.0E-5

Q/U3 Trigger 4 in current unit e.g.: 1.0E-5

x, y (always 2 signs)

Q4 Output the operating mode

Select operating mode This setting

Q/U7

Q/U8

Q10 Always 0

Q11 Limit-Low in current unit e.g.: 1.0E-8

Q12 Limit-HIGH in current unit e.g.: 1.0E4

Q/U13 Machine factor for VAC e.g.: 1.0E0

is not saved when switching the mains power off.

Sensitivity Threshold. Leak rate in

current unit at which the sensitivity (averaging time) is Zero time in seconds (period of time for which the leak rate signal must remain below the saved background level until the saved background level itself is corrected).

switched over.

X: 0 – SPS, 1 - RS232 Y: 0 – VAC. 1 - SNIFF

0 - VAC

1 - SNIFF

e.g.: 1.0E-10

e.g.: 5

LDS1000 Protocol 21

Command Meaning Representation

Q/U14 Correction factor for SNIFF e.g.: 1.0E0

Operating mode for ext. CAL The

Q/U16

Q/U19

Q/U20

Q/U21 Date

Q/U22 Time e.g.: 14:40:07

setting is not saved when switching off the mains power.

Request for CAL (Enable CAL message for a temperature difference of 5° C).

Mass of the gas which is detected in the mass spectrometer

Q/U24 Unit (unit of measurement for

pressure and leak rate in VAC and SNIFF)

0 - with autotune

1- dyn. CAL without autotune

0 - off

1 - on

2 , 3, 4

e.g.: 4

e.g.: 24.Nov04 Abbreviations for the months: Jan May Sep Feb Jun Oct Mar Jul Nov Apr Aug Dec

0 - mbar and mbar l/s 1 - Pa and Pa m

3/s

2 - atm and atm cc/s

3 - mbar and g/a ppm and g/a is not available for VAC

Q/U27 Leak rate of the internal

calibrated leak (always in mbar

4 - mbar and ppm

5 - Torr and Tor l/s

e.g.: 1.0E-7

9.9E-1 for not available

l/s

Q/U28

leak rate of the external calibrated leak

e.g.: 1.0E-5

9.9E-1 for not available

Q/U31 Number of suppressed decades 0 - 1 to 2 decades

1 - 2 to 3 decades

2 - 3 to 4 decades

3 - 2 decades

4 – complete value

5 - 19/20 of value

22 LDS1000 Protocol

Q/U32 Zero suppression when START

U45

Q/U56 Factor 500G - 15G

Q/U57

Compatibility Mode

MSV anode potential for masse 2 in volts

0 - off

1 - on

2 – LDS2010-Mode

3 – LDS3000-Mode

e.g.: 890

Command Meaning Representation

Q/U58

MSV anode potential for masse 3 in volts

e.g.: 590

Q/U59

Q/U66 Always 0

MSV anode potential for masse 4 in volts

3.2.5 Running of service functions

These function calls are not required for normal measurement operations. They are thus all protected by the password (see command U5) with the exception of function F3. The control mode must be set to RS232.

Command Meaning Representation

Parameter RESET, resetting of all

F17 Switch on cathode 1

F18 Switch on cathode 2 (MEK2 = on)

parameters (except internal test leak and LCD-contrast) to factory defaults. Erase error memory.

Hardware RESET (same as when switching OFF and the ON again)

e.g.: 455

LDS1000 Protocol 23

4 Binary Interface Protocol

4.1 Communication Parameters

Data format

Baudrate 19.200, 8 data bits, no parity, 1 stop bit

float 4 Bytes, IEEE754 (± 10

1 Byte Exponent/Sign

unsigned long int [ulint]: 4 Bytes, integer without algebraic sign MSB …

LSB (0 … 4294967295)

unsigned short int [usint]: 2 Bytes, integer without algebraic sign MSB,

LSB (0 … 65535)

signed short int 2 Bytes, integer without algebraic sign MSB, LSB

(-32768 … 32767)

unsigned char [uchar]: 1 Byte, integer without algebraic sign (0 … 255)

unsigned char [uchar]: 1 Byte, character ASCII Code (0 … 255)

4.2 Commands

On every command you have to acknowlede with a cmd number. In case of error instead of a cmd number a error byte ( 230) is transfered.

±38

), 3 Byte Mantissa,

Nr Name Description Parameter Data

2 GetPv Fore vacuum pressure

5 GetDeviceID Device type LDS2000Plus: 31dec.

54 GetCal Read calibration state 0-int.Cal; 1-ext.Cal

55 SetCal Start / Stop calibration 0-int.Cal; 1-ext.Cal

GetGasballast

SetGasballast

GetCalFac

SetCalFac

GetMass

SetMass

GetZero

SetZero

Gas ballast valve

Calibration factor

Measure mass [uchar, 2/3/4 for mass 2/3/4]

Zero (suppress background)

Byte 0: unit (0-mbar, 1-Pa, 2-atm, 3-Torr)

Byte 0: 0-Vacuum; 1-Sniff

Pv [float]

Byte 0: 0-off, 1-on, 2- main fail safe -on

Factor [float]

0-off

1-on

0-inactiv; 1-active; 2-wait for calibrated leak close (only at external calibrations)

0-stop; 1-start; 2-finish ( TL close; only at external calibrations)

24 Binary Interface Protocol

Nr Name Description Parameter Data

Byte 0: 1...4 for Trigger

1...4

GetTrigger

SetTrigger

Set / read trigger

Byte 1: Einheit: 0mbar*l/s, 1-Pa*m³/s, 2-atmcc/s, 3-Torrl/s;

In sniff mode additional 4-ppm and 5-g/a

[float]: Trigger value

62 GetErrorCode Read actual error number

63 SetClearError Quit error / cancel calibration

GetOpMode

SetOpMode

GetStBy

SetStBy

GetTL

SetTL

GetFilterSetPoint

SetFilterSetPoint

Set / read operation mode

Stand-By read / set

Value of the calibrated leak read / set

Leak rate for switching the averting time

Byte 0: 0-int.TL; 1-ext.TL-vac; 2-ext.TL-sniff

Byte 1: unit: 0-mbar*l/s, 1-Pa*m³/s, .2-atmcc/s, 3-Torrl/s;

In sniff mode additionally: 4-ppm, 5-g/a

Unit: 0-mbar*l/s, 1Pa*m³/s, .2-atmcc/s, 3-Torrl/s;

In sniff mode additionally: 4-ppm, 5-g/a

0-Vacuum; 1-Sniff

0-Stand-By; 1-measurement

Actual error number (1 Byte)

0= no error

5 [float]: value calibrated leak

(Int.. cal : 1E-15mbarl/s for no internal calibrated leak in use)

[float]: LR-limit value

70 GetSerialNumber Read serialnumber

0-Standby; 1-error; 2-Cal;

72 GetState State of the device

74 GetOpHours Read operating hours [uint; h];

76 GetSWVersionNr Read software version

GetFacMachine

SetFacMachine

Read / set machine factor [float]

Binary Interface Protocol 25

3-run up; 4-ready; 5-Emisssion off

Byte 0: Main-Version;

Byte 1: Sub-Version

Nr Name Description Parameter Data

0=2-3 Decades; 1=1-2 Decades;

GetZeroMode

SetZeroMode

Choice zero function

2=19/20 of valuet;

3=2 Decades; 4=3-4Decades 5=complete value

99 GetLr Leak rate

GetFacSniff

SetFacSniff

GetUnit

SetUnit

Read sniff factor [float]

unit read / set

Example: SET Trigger 2 to 1.2E-7mbarl/s

HOST  LDS2010:

Unit (0-mbar*l/s, 1-Pa*m³/s, .2-atmcc/s, 3-Torrl/s;

In sniff mode additionally 4-ppm, 5-g/a)

Byte 0: LR-vac; Byte 1: LR-sniff; Byte 2: pressure

0-mbar / mbarl/s; 1-Pa / Pam³/s; 2-atm / atmcc/s; 3-Torr / Torrl/s

only for LR-sniff: 4-ppm; 5-g/a

[float]

5 10 57 2 0 52 0 217 89 176

0x05 0x0A 0x39 0x02 0x00 0x34 0x00 0xD9 0x59 0xB0

Start Len Cmd Para0 Para1 Data Data Data Data Checksum

Trigger Trig. 2 mbarl/s 1.2E-7

(4-Byte float)

LDS2010  HOST

35760

0x03 0x39 0x3C

Len Cmd Checksum

GET Trigger 2 in mbarl/s

HOST  LDS2010:

26 Binary Interface Protocol

56562069

0x05 0x06 0x38 0x02 0x00 0x45

Start Len Cmd Para0 Para1 Checksum

Trigger Trig. 2 mbarl/s

LDS2010  HOST

7 57 52 0 217 89 166

0x07 0x39 0x34 0x00 0xD9 0x59 0xA6

Len Cmd Data Data Data Data Checksum

1.2E-7 (4-Byte float)

4.3 Error messages

232  RS232Invalid  Temporary not allowed (example CAL during run up)

240  RS232Cmd  Command existiert nicht

243  RS232Len  Numbrer or length of parameters faulty

244  RS232Para  Parameter out of acceptable range

252  RS232Start  First character wrong (unlike 0x05)

253  RS232Checksum  Transmited and calculated Checksumme unlike

254  RS232Timeout  Timeout (Transmission of a command not completed after 500 msec )

255  RS232Buffer  Bufferoverflow (Overflow of the Receive-Buffers)

Binary Interface Protocol 27

5 LD Protocol

5.1 Communication Parameters

Data format

Baudrate 19.200, 8 data bits, 1 stop bit, no parity

5.2 Command format

5.2.1 Telegram structure

Master sends

ENQ LEN ADR CmdH CmdL DATA (n bytes) CRC

012 345 5+n

Slave answers

STX LEN StwH StwL CmdH CmdL DATA (n bytes) CRC

0123456 6+n

Command Meaning

ENQ 0x05 Start of master request STX 0x02 Start of slave response

LEN

ADR Slave address

Stw H/L Status word Info from slave to master (5.3)

Cmd H/L Command

DATA

CRC Checksum

Number of telegram bytes

Data belonging to master request (Slave reply to write command is sent without data)

without ENQ(STX)/LEN, however with CRC max. 253, so the total slave telegram length is max. 255

Slave address = 1: non-addressed bus. Address byte is ignored.

Bit 15 ... 13: Command-specifier Read/Write etc. (see table “Cmd H/L: Command: Command-specifier”) Bit 12: free Bit 11 ... 0: Command (5.3)

0 <= n <= 248 If I/O module (7-byte additional header) is used, then limit maximum data length to 241.

Calculate CRC for all bytes (except CRC byte) Polynomial: 0x98, Name: DOWCRC, Maxim/Dallas, X^8+X^5+X^4+1 Info: CRC calculation see document "CRC_calculation.c" (C souce code)

28 LD Protocol

Cmd H/L: Command: Command-specifier

Bit 15 ... 13 Meaning High Nibble (Hex) Comments

000 Read value 0 001 Write value 2

Min values also

010 Read lower limit value 4

defined for read commands.

Max values also

011 Read upper limit value 6

defined for read commands.

Def values also

100 Read default value 8

defined for read commands. Please refer to

101

Read command name in plain text

chapter “Command name in plain text” below.

Please refer to table

110 Read command info C

“Command info” below

111 not used E

Command name in plain text

• 7-Bit ASCII, only printable characters (0x20 and 0x7E)

• Always in English

• Units in square brackets

Command info

1. Byte Data type (see table “Data types”) Number of array elements:

2. Byte

0 = no data, no array 1 = data, no array 2 ... 255 = array Bit 0: 1 = Reading allowed, 0 = Reading not allowed

3. Byte

Bit 1: 1 = Writing allowed, 0 = Writing not allowed Bit 2 ... 7: always 0 (not used)

LD Protocol 29

Data types

Value Meaning Acronym Comments

1 Signed 8 bit integer SINT8 2 Signed 16 bit integer SINT16 3 Signed 32 bit integer SINT32 4 Unsigned 8 bit integer UINT8 5 Unsigned 16 bit integer UINT16 6 Unsigned 32 bit integer UINT32 7 Character CHAR ISO 8859-1; printable characters 16 Signed 64 bit integer SINT64 17 Unsigned 64 bit integer UINT64

20 no data NO_DATA

All data types are used in Big Endian format (Motorola format), i.e. the byte with the highest-order bits is transferred first.

Arrays

• Read single elements: Array index in first DATA-byte

• Write single elements: Array index in first DATA byte and values in following

• Read all elements: Pseudo array index 255 in first DATA byte

Floating point/real number

DATA bytes

FLOAT IEEE 754

For commands without data, such as Start

• Write all elements: Pseudo array index 255 in first DATA byte and values in following DATA bytes

• Response from slave (in case data are sent): Array index or pseudo array index in first DATA byte and values in following DATA bytes

All elements of an array have the same Min/Def/Max value.

30 LD Protocol

5.3 Commands

Comm and dez

Status word

Status word Status word

Status word

Status word Status word

Status word

Status word Status word

Status word

Status word Status word

Status word

Status word Status word

0 0 NOP R NO_DATA "No operation", replies without data 1 1 Start W NO_DATA Switch from "standby" to "measure" 2 2 Stop W NO_DATA Switch from "measure" to "standby"

4 4 Start calibration W UINT8

5 5 Clear error W NO_DATA Clear Error or Warning

6 6 Zero R/W UINT8

Com mand hex

Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Bit 8

Bit 9

Bit 10

Bit 11

Bit 12

Bit 13

Bit 14

Bit 15

Name R/W Data type

Status word in slave telegram

Status word in slave telegram Status word in slave telegram

Status word in slave telegram

Status word in slave telegram Status word in slave telegram

Status word in slave telegram

Status word in slave telegram Status word in slave telegram

Status word in slave telegram

Status word in slave telegram Status word in slave telegram

Status word in slave telegram

Status word in slave telegram Status word in slave telegram

Emission nominal status

R/W UINT8

Min-, Def.-, Maxvalue

Meaning

Device state Bit 0

Device state Bit 1

Device state Bit 2

Device state Bit 3

ZERO

Still warning

Sniffer Key

USER CHANGE

PLC Output Change

Trigger 1 1 = Trigger 1 exceeded

Trigger 2 1 = Trigger 2 exceeded

not used

Device warning

Device error

Syntax / Command error

Start calibration: 0 = internal 1 = external 2 = dynamic 3 = machine/sniff factor

0 = Zero "Off" 1 = Zero "On" respectively update zero value

Emission nominal status 0 = off 1 = on

LD Protocol 31

Comm and dez

10 A

11 B

Com mand hex

Name R/W Data type

TMP nominal status

Calibration acknowledge

R/W UINT8

WUINT8

Min-, Def.-, Maxvalue

Meaning

TMP nominal status 0 = off 1 = on

1 = Continue calibration 0 = cancel calibration

12 C

128 80

129 81

130 82

131 83

132 84

133 85

134 86

135 87

138 8A

139 8B TMP power [W] R FLOAT

140 8C

141 8D

142 8E

143 8F

144 90

Open/close int. testleak

Leak rate [sel. unit]

Leak rate [mbar*l/s]

Internal pressure 1 [sel. unit] Internal pressure 1 [mbar]

Internal Pressure 2 [sel. unit]

Internal Pressure 2 [mbar]

Pressure sensor 3 Pressure sensor 4

TMP actual rotation speed [Hz]

TMP operation hours [h]

Frequency converter operation hours [h]

Leak detector operation hours TMP temperature bottom [deg. C]

TMP temperature electronic [deg. C]

R/W UINT8

R FLOAT Leak rate in selected unit

R FLOAT Leak rate in mbar*l/s

R FLOAT Pressure p1 in selected unit

R FLOAT Pressure p1 in mbar

R FLOAT Pressure p2 in selected unit

R FLOAT Pressure p2

RFLOAT

R UINT16 TMP actual rotation speed

R UINT32 TMP operation hours

R UINT32 Frequency converter operation hours [h]

R UINT32 Leak detector operation hours

R FLOAT TMP temperatur bottom [deg. C]

R FLOAT TMP temperatur electronic [deg. C]

0 = close 1 = open incl. Emission monitoring (less sensitive) internal calibration will overwrite the state

Sensor (0...10 V). Config via commands 2630,2634,2638 Sensor (0...20 mA) config via commands 2632,2636,2639

TMP power in Watt as reportet by TMP controller

32 LD Protocol

Comm and dez

Com mand hex

Name R/W Data type

Min-, Def.-, Maxvalue

Meaning

TMP

145 91

temperature bearing [deg.

R FLOAT TMP temperatur bearing [deg. C]

C] TMP

146 92

temperature

R FLOAT TMP temperatur motor [deg. C]

motor [deg. C]

147 93

148 94

149 95

150 96

151 97 TMP current [A] R FLOAT

157 9D

Time since power on [min] Cathode1 operation hours

Cathode2 operation hours

TMP voltage [V]

Switch on counter

R UINT32 Time since power on [min]

UINT32 Cathode1 operation hours

UINT32 Cathode2 operation hours

RFLOAT

TMP voltage as reported by TMP controller TMP current as reported by TMP controller

RUINT16

Counts the switch on cycles 0, 0, 65534

Electronic

165 A5

temperature

R FLOAT MSB temperature in °C

[deg. C] Preamplifier

166 A6

temperature

R FLOAT VV temperature in °C

[deg. C]

167 A7

168 A8

169 A9

170 AA

171 AB

Anode voltage [V]

Cathode voltage [V]

Suppressor voltage [V] Anode-cathode voltage [V]

Emission current [A]

R FLOAT Anode voltage in V

R FLOAT Cathode voltage in V

R FLOAT Suppressor voltage in V

R FLOAT Anode/cathode voltage in V

R FLOAT Emission current (A)

172 AC Heater input [V] R FLOAT DAC heater (V)

200 C8 24 V supply [V] R FLOAT

202 CA

206 CE

207 CF

209 D1

210 D2

Pre amplifier voltage [V]

Heater voltage [V] Heater power [W]

24 V power out TMP [V]

+15 V supply [V]

R FLOAT Pre amplifier voltage [V]

R FLOAT Heater voltage in V

R FLOAT Heater power in W

R FLOAT 24 V TMP, MSB Pin C30 voltage in V

R FLOAT +15 V voltage in V

24 V supply voltage for heater, processor, preamplifier in V

211 D3 -15 V supply [V] R FLOAT -15 V voltage in V

LD Protocol 33

Comm and dez

212 D4

213 D5

214 D6

215 D7

216 D8

217 D9

218 DA +5 V supply [V] R FLOAT +5 V voltage in V

219 DB

220 DC

221 DD

Com mand hex

Name R/W Data type

24 V power out RC [V]

24 V supply IO [V]

24 V power out pirani [V] 24 V power out12 [V]

24 V power out34 [V]

24 V power out56 [V]

24V power out IO [V]

Analog input IO [V]

Analog outputs IO [V]

RFLOAT

R/W FLOAT 24 V IO module supply voltage [V]

RFLOAT

R/W FLOAT Analog input voltage IO module in [V]

R/W FLOAT[2]

Min-, Def.-, Maxvalue

Meaning

2 4 V R C , r e m o t e c o n t r o l , M S B P i n A 3 0 , voltage in V

24 V Pirani, sniffer MSB Pin C31 Voltage in V 2 4 V p o w e r o u t p u t s 1 . 2 M S B P i n C 2 7 Voltage in V

2 4 V p o w e r o u t p u t s 3 . 4 M S B P i n C 2 1 Voltage in V

24 V power outputs 5.6 MSB Pin B31 Voltage in V

24 V IO modul, MSB Pin B30 Voltage in V

Analog output voltage for IO module in [V] It is possible to write an arbitrary voltage value, if the "Analog output configuration" (command 222) of the accordant channel is set to 8

222 DE

223 DF

224 E0

228 E4

260 104

261 105

Analog output configuration IO modul

Analog output leak rate scale (log. only)

Analog output upper exponent

Gasballast mode

State calibration

PLC input state IO modul

ANALOG-OUT 1:

R/W UINT8[2]

R/W UINT8 0, 0, 7

R/W SINT8 1E-12, 1E-5, 1E7

R/W UINT8 0, 0, 2

RUINT8

R/W UINT16

0, 3, 12 ANALOG-OUT 2: 0, 4, 12

Function of analog output Index 0: Channel 1 Index 1: Channel 2 Functions see table "Analog output configuration"

Leak rate scaling of analog output in logarithmic mode Functions see table "Analog output configuration"

Upper limit for the analog out at the I/O modul. Value is exponent of the mbar*l/s value. Example: -5 = 1E-5 mbar*l/s

0=off, 1=on, 2=on (continuous on, not PLC controlled)

Status of calibration See table "State calibration"

Get PLC input state and DIP switch state IO modul Bit 0..9 = PLCin 1..10 Bit 10..15 = DIP 1..6 (S1.1,S1.2,S1.3,S1.4,S2.1,S2.2)

34 LD Protocol

Comm and dez

262 106

Com mand hex

Name R/W Data type

PLC output state IO modul

RUINT8

PLC output

263 107

configuration

R/W SINT8[8]

IO modul

264 108

274 112

Emission actual status

Last entry in cal history

RUINT8

UINT8

275 113 Cal history CHAR[*]

277 115

Last entry in error history

UINT8

287 11F Error history R CHAR[*]

288 120

TMP error history

R CHAR[*]

Min-, Def.-, Maxvalue

PLC_OUT1: -16, 2, 16 PLC_OUT2: -16, 3, 16 PLC_OUT3: -16, 4, 16 PLC_OUT4: -16, 5, 16 PLC_OUT5: -16, 6, 16 PLC_OUT6: -16, 8, 16 PLC_OUT7: -16, 0, 16 PLC_OUT8: -16, 0, 16

Meaning

Get PLC output state IO modul Bit0..7 = PLCOut 1..8

Index 0...7 = PLC_OUT1 ... PLC_OUT_8 See table "PLC output conf."

Emission status: STOP= 0 START= 1 WAIT= 2, RAMP= 3, REGULATE= 4 STABLE= 5 DOWN= 6 OFF= 7

History list index of the last (newest) entry in the calibration history

Text of calibration in the history list. To read send after the array index 255 the UINT8 history list index (0...9). Without history list index you will get the last (newest) entry. Entry format: see enumerations table

Index of the last (newest) entry in the error history list

Text of an error/warning in the history list. To read send after the array index 255 the UINT8 history list index (0...15). Without history list index you will get the last (newest) entry. Entry format: see enumerations table

Text of an error/warning in the TMP history list. To read send after the array index 255 the UINT8 history list index (1...10). Entry format: see enumerations table

LD Protocol 35

Comm and dez

289 121

290 122

291 123

294 126

296 128

297 129

300 12C

301 12D Device name R CHAR[*]

310 136

313 139

314 13A

315 13B

316 13C

317 13D

318 13E

319 13F

320 140

Com mand hex

Name R/W Data type

Value of actual error

Number of actual error

List of signal values of active errors

Text of error number

List of active errors

Present warnings Device identification

SW-version MSB

SW-version I/O modul

SW-version control unit

SW version TMP controller

HW-version TMP controller

TMP controller name SW version boot loader

SW version boot loader I/O modul

CRC-code MSB

RFLOAT

RUINT16

FLOAT[10

]

R CHAR[*]

UINT16[1

RUINT32

R UINT8[2]

R UINT8[3]

R/W UINT8[3]

R CHAR[6] Character string from turbo controller

R UINT8[3] Software version of boot loader

R/W UINT8[3] Software version of boot loader IO modul

RUINT32

Min-, Def.-, Maxvalue

Meaning

Value associated with the actual error or warning

Error number of the actual error or warning

Lists the signal values of the errors/ warnings since the last "clear error"

text of an error/warning number To read send after the index the UINT16 error number Without error number you will get the actual error/warning Use only with index=255!

Lists the error/warning numbers since the last "clear error"

Each bit represents a warning see enumerations table Device identification, always {1,45} for MSB

Get device name as ASCII string, 'always "MSB"

Software version MSB Index 0: Main version Index 1: Sub version Index 2: Debug version

Software version IO modul Index 0: Main version Index 1: Sub version Index 2: Debug version

Software version control unit Index 0: Main version Index 1: Sub version Index 2: Debug version

CRC-code interface board abcdwxyz (hex) abcd: caclulated value wxyz: nominal value

36 LD Protocol

Comm and dez

Com mand hex

321 141

322 142

323 143

324 144

325 145

326 146

327 147

328 148

329 149

330 14A

331 14B

385 181

390 186

392 188

394 18A

401 191

Name R/W Data type

DIP switch MSB

Field bus status word

SW version bus modul

Bus module fieldbus type

RUINT8

RUINT16

R UINT8[3] SW version bus modul

RUINT16

Serial number plug-in unit bus

R UINT8[4] Serial number plug-in unit bus modul

modul

Field bus address

Field bus baud rate

Exception code bus modul

Error counters bus module

Bus module state

RUINT8

R UINT8 Exception code bus module

R UINT16[4]

RUINT8

Field bus address

R/W UNIT8

nominal value Trigger [mbar*l/

R/W FLOAT[4] 1E-12, 1E-5, 1E3 Trigger in mbar*l/s

Test leak extern vacuum

R/W FLOAT [mbar*l/s] Test leak extern sniff

R/W FLOAT [mbar*l/s] Testleak intern [mbar*l/s]

Operation mode

R/W FLOAT

R/W UINT8 0, 0, 1

Min-, Def.-, Maxvalue

1E-9, 9.9E-2,

9.9E-2

1E-7, 9.9E-2,

9.9E-2

1E-7, 9.9E-2,

9.9E-2

Meaning

DIP switch setting of the MSB: Bit7: S171, switch 4 Bit6: S171, switch 3 Bit5: S171, switch 2 Bit4: S171, switch 1 Bit3: S170, switch 4 Bit2...0: not used,always 0

Status word for Bus modul refer to Bus module documentation

Bus module fieldbus type. Refer to AnybusCC specification for enumeration.

Fiedbus address Refer to AnybusCC specification for enumeration.

Baud rate at field bus Refer to AnybusCC specification for enumeration.

Error counters bus module Index: 0: Discarded commands 1: Discarded Responses 2: Serial Reception errors 3: Fragmentation errors

State of bus module see Enumarations

Fieldbus address nominal value. Refer to AnybusCC specification for enumeration.

Test leak extern for vacuum mode in mbar*l/s

Test leak extern for sniff mode in mbar*l/s

Testleak intern in mbar*l/s

0 = VACUUM 1 = SNIFF

LD Protocol 37

Comm and dez

402 192 Leak rate filter R/W UINT8 0, 1 ,2

403 193

406 196

407 197

408 198

409 199 Zero with start R/W UINT8 0, 0 ,1

410 19A Zero mode R/W UINT8 0, 0, 5

Com mand hex

Name R/W Data type

Leak rate threshold for averaging time [mbar*l/s]

Serial number leak detector

Serial number MSB Serial number IO modul

R/W FLOAT

R CHAR[11]

R CHAR[11] Serial number of the MSB

R CHAR[11] Serial number of the IO modul

Min-, Def.-, Maxvalue

1E-11, 1E-10,

9.9E3

Meaning

0 = 2-zone 1 = I•CAL 2 = Fixed

Leak rate threshold for averaging time in mbar*l/s. Below this value the averaging time is 10,24s. Above this value the averaging time is 160ms.

Serial number of the complete leak detector

Zero with Start 0 = OFF, 1 = ON

unterdrückte Dekaden:

0 = suppress all

1 = 1 -2 decades background suppression 2 = 2 -3 decades background suppression 3 = 2 decades background suppression 4 = 3-4 decades background suppression 5 = 19/20 of the raw signal background suppression

411 19B Zero time R/W UINT16 0 , 5 , 30

412 19C

419 1A3

430 1AE Pressure unit R/W UINT8 0, 0, 3

431 1AF

Zero Sniffer Key Enable Calibration request enable

Leak rate unit vacuum

R/W UINT8 0, 1, 1

R/W UINT8 0, 0, 1

R/W UINT8 0, 0, 2

Update interval for offset value if leakrate signal is negative. Resolution 0,1 s (50 = 5,0 s)

0 = zero key disabled 1 = zero key enabled 0 = Calibration request disabled 1 = Calibration request enabled

Pressure unit mbar = 0 Pa = 1 atm = 2 Torr = 3

Leak rate unit vacuum 0 - mbarl/s 1 - Pam 2 - Atm ccs 3 - Torrl/s 4 - ppm 5 - g/a

38 LD Protocol

Comm and dez

Com mand hex

432 1B0

433 1B1

434 1B2

435 1B3

436 1B4

438 1B6

439 1B7

Name R/W Data type

Leak rate unit sniff

Anode setpoint M2 [V]

Anode setpoint M3 [V] Anode setpoint M4 [V]

R/W UINT8 0, 0, 5

R/W UINT16 785, 905, 995

R/W UINT16 510, 610, 670 Anode voltage setpoint for mass 3 in V

R/W UINT16 390, 465, 520

Emission current setpoint

R/W FLOAT [V]

PLC input configuration

R/W UINT8[10] IO module

Key switch state

RUINT8

Min-, Def.-, Maxvalue

1E-4, 2.5E-3,

2.8E-3

PLC_IN 1: -16, 11, 16 PLC_IN 2: -16, 4, 16 PLC_IN 3: -16, -12, 16 PLC_IN 4: -16, 7, 16 PLC_IN 5: -16, 2, 16 PLC_IN 6: -16, 3, 16 PLC_IN 7: -16, 9,16 PLC_IN 8: -16, 0, 16 PLC_IN 9: -16, 0, 16 PLC_IN 10: -16, 0, 16

Meaning

Leak rate unit sniff 0 - mbarl/s 1 - Pam3/s 2 - Atm ccs 3 - Torrl/s 4 - ppm 5 - g/a

Anode voltage setpoint for mass 2 (hydrogen) in V

Anode voltage setpoint for mass 4 (helium) in V

Emission current setpoint [V]

Configuration of PLC input port of the IO module Index 0...9 = PLC_IN1...PLC_IN10 See table "PLC input conf."

Key switch state 0=inactive, 1=active, 2= not used Bit0&1: KEY_1 Bit2&3: KEY_2 Bit4&5: KEY_3 Bit6&7: not used

448 1C0

Valve control location

R/W UINT16

449 1C1 Switch valves R/W UINT16

Bit=0: Controled by leak detector Bit=1: Controled by write command 449

see table "Valves" For setting valve by write comman see also command 448

LD Protocol 39

Comm and dez

450 1C2

Com mand hex

Name R/W Data type

Date+Time [YMDhms]

R/W UINT8[6]

Min-, Def.-, Maxvalue

Meaning

Date and time use only with array-index 255 (all bytes) year (1..99), month, day, hour (0..23), min, sec

452 1C4

453 1C5 Max pressure R/W FLOAT 1E-3, 18, 18

499 1F3

501 1F5

502 1F6 Amplifier range R/W UINT8 0, 3, 3

504 1F8

506 1FA Mass R/W UINT8 2, 4, 4

508 1FC

520 208

521 209

522 20A

Min pressure sniff

Fan output TMP controller

TMP rotation speed

500GOhm value

Amplifier control location

Calibration factors vacuum

Calibration factors sniff

Machine factors vacuum

R/W FLOAT 1E-3, 4E-1, 18

R/W UINT8 0, 0, 1

R/W UINT16 1000, 1500, 1500

R/W FLOAT

R/W UINT8

R/W FLOAT[3] 1E-2, 1, 5000

R/W FLOAT[3] 1E-2, 1, 100

R/W FLOAT[3] 1E-4, 1, 1E4

4.5E1, 5E11,

5.5E11Ohm

0 = controlled by write command 502 1 = controlled auto

Minimum pressure p1 im mbar for sniff mode. If pressure falls below this value, warning 540 (Flow too low) is generated.

Maximum pressure p1 in mbar for sniff and vacuum. If pressure rises above this value, warning 520 (Pressure too high) is generated.

0 = always on 1 = temperature controlled only valid after restart of leak detector

TMP rotation speed 1000, 1500Hz

Amplifier range Amplifier control location 504 automatically set (not auto) 0 = 13 MOhm 1 = 470 MOhm 2 = 15 GOhm 3 = 500 GOhm

500GOhm value

2 = Mass 2 (H2) 3 = Mass 3 4 = Mass 4 (Helium)

Amplifier control location

Calibration factors for vacuum mode Index 0: mass 2 Index 1: mass 3 Index 2: mass 4

Calibration factors for sniff mode Index 0: mass 2 Index 1: mass 3 Index 2: mass 4

Machine factors for vacuum mode Index 0: mass 2 Index 1: mass 3 Index 2: mass 4

40 LD Protocol

Comm and dez

Com mand hex

Name R/W Data type

Min-, Def.-, Maxvalue

Meaning

Machine factors for sniff mode

523 20B

Machine factors sniff

R/W FLOAT[3] 1E-4, 1, 1E5

Index 0: mass 2 Index 1: mass 3 Index 2: mass 4

524 20C

Machine factor in standby on/ off

R/W UINT8 0, 0, 1

machine factor in standby 0 = OFF, 1 = ON

0 = CAT1 1 = CAT2 2= Auto Cat1

3= Auto Cat2

530 212

Cathode selection

R/W UINT8 0, 3, 4

4 = OFF Parameter reset:

0: Load factory settings

1161 489

Parameter reset

WUINT8

3: Clear error history 4: Clear calibration history 10:

PARA_RESET_ LDS1000_MODE

11: PARA_RESET_ LDS2010_MODE Counter for telegrams received via

commands 1280 and 1281 Index: 0=LD protocol 1=ASCII protocol 3=Binary protocol

1282 502

IO module telegram receive counters

R UINT16[5]

4=LDS1000 protocol Counter for telegrams transmitted

Index: 0=LD protocol 1=ASCII protocol 3=Binary protocol

1283 503

IO module telegram transmit counters

R UINT16[5]

4=LDS1000 protocol

1284 504 Control word R/W UINT16 Control word (used for Bus module)

1285 505

1300 514

1301 515

1302 516

1303 517

1304 518

1305 519

1306 51A

Stop service buffer

Service buffer ion current

Service buffer pressure 1 Service buffer emis current

Service buffer anode voltage

Service buffer cathode voltage

Service buffer heater power Service buffer leakrate

R/W UINT8

FLOAT[15

0] FLOAT[15

FLOAT[15

0] FLOAT[15

0=save new information 1=no new information

To read send after the array index 255 the UINT8 block number, each block 10 values (block 14 is newest)

see command 1300

LD Protocol 41

Comm and dez

1307 51B

1308 51C

1309 51D

1310 51E

1568 620

1569 621

1573 625

1800 708

1815 717 Reset source R UINT8 Shows the last reason of reset

Com mand hex

Name R/W Data type

Service buffer TMP mode

Service buffer TMP speed

Service buffer emission mode Service buffer sensor 3

Unfiltered ion current [A]

Amplifier 1 internal Filtered ion current [A]

Active protocol IO

FLOAT[15

0] FLOAT[15

R FLOAT Unfiltered ion current in A

RFLOAT

R FLOAT Filtered ion current in A

RUINT8

Min-, Def.-, Maxvalue

Meaning

see command 1300

see command 1301

Active interface protocol for I/O module. Defined by DIP switch at I/O module or command 2593. Values: See enumerations table

2593 A21

2594 A22

2619 A3B

2630 A46

2632 A48

2634 A4A

2636 A4C

2638 A4E P3 mode UINT8 0, 1, 1 Sensor 3 mode 0=lin, 1=log 2639 A4F P4 mode UINT8 0, 0, 1 Sensor 4 mode 0=lin, 1=log

2650 A5A

2660 A64

2661 A65

Interface protocol IO

Compatibilty Mode

Start flash update

P3 min max pressure P4 min max pressure

P3 min max voltage

P4 min max current

Set suppressor voltage [V] Maintenance activ

Set maintenance

R/W UINT8 0, 1, 4

R/W UINT8 0, 2, 2 Selected Compatibility Mode

WUINT16

FLOAT[2] 0, 5E-4, 1E4 Range sensor 3 (0..10 V)

FLOAT[2] 0, 0, 1E4 Range sensor 4 (0..20 mA)

FLOAT[2] -10, 1.9, 10 Voltage range sensor 3 (0..10 V)

FLOAT[2] -20, 4, 20 Current range sensor 4 (0..20 mA)

FLOAT Suppressorvoltage for test

R/W UINT8 0, 0, 1 0 = off, 1 = on

W UINT8 1= bearing/lubricant

Selected interface protocol for I/O module. Only valid if DIP switch at I/O module is set to "000"=

Writing 0x5555 to start flash update via control unit interface

2662 A66

Maintenance done

42 LD Protocol

R CHAR[*]

To read send after the array index 255 the UINT8 maintenance list index (0...9). Without history list index you will get the last (newest) entry Entry format: see enumerations table

5.4 Enumerations

Analog output configuration (command 222)

Value Meaning

0off 1p1 2p2 3 Leak rate mantissa 4 Leak rate exponent 5 Leak rate linear 6 Leak rate logarithmic 7 Leak rate logarithmic H. 8 9 10 11 12

Analog output leak rate scale (log. only) (command 223)

Value Meaning

0 0,5 V / decade 1 1 V / decade 2 2 V / decade 3 2,5 V / decade 4 3 V / decade 5 5 V / decade 6 10 V / decade 7 special_1

Voltage setable by command 221 Leak rate exponent invers Leak rate mantissa hysteresis p1 1V/decade p2 1V/decade

State calibration (command 260)

Value Meaning

0 READY 1 START_INT 2 WAIT_TL_INT 3 PEAK_INT 4 MEAS_TL_INT 5 WAIT_ZERO_INT 6 MEAS_ZERO_INT 11 START_EXT 13 PEAK_EXT 14 MEAS_TL_EXT 15 WAIT_ZERO_EXT 16 MEAS_ZERO_EXT 21 START_DYN 25 WAIT_ZERO_DYN 26 ZERO_DYN 51 CURRENT 52 FAIL_STATUS 53 FAIL_TL_TO_SMALL

LD Protocol 43

Value Meaning

54 FAIL_FACTOR 55 WARN_FACTOR 56 FAIL_EMIS 59 PEAKERR

PLC output configuration IO module (command 263)

Value Meaning

-16 SNIFF_N

-15 STANDBY_N

-14 MEASURE_N

-13 EMISSION_ON_N

-12 ZERO_ACTIVE_N

-11 RUN_UP_N

-10 CAL_REQUEST_N

-9 CAL_ACTIVE_N

-8 ERROR_N

-7 WARNING_N

-6 READY_N

-5 TRIG4_N

-4 TRIG3_N

-3 TRIG2_N

-2 TRIG1_N

-1 OPEN_N 0 OPEN 1 OPEN 2TRIG1 3TRIG2 4TRIG3 5TRIG4 6 READY 7 WARNING 8ERROR 9 CAL_ACTIVE 10 CAL_REQUEST 11 RUN_UP 12 ZERO_ACTIVE 13 EMISSION_ON 14 MEASURE 15 STANDBY 16 SNIFF

44 LD Protocol

Cal history (command 275)

ListNo, 'Fac:', Calfac(float), 'Leak:', Testleak(float),

Answer

'Anod:', Anodevoltage, 'M', Mass, 'VAC' or 'SNIF', year/month/day, hour:min:sec, 'Cat:', Cathode, 'State:', cal state

08 Fac: 0.00E+0 Leak: 0.00E+0

Example

Anod: 000 M2 VAC 2000/00/00 00:00:00 Cat: 1 State: 000

Error history (command 287)

ListNo, 'ERR' or 'WRN', ErrNo, ErrValue(float),

Answer

year/month/day, hour:min:sec, 'SwOnCnt:', SwitchOnCnt, 'OnTm:', MinSinceStart

05 WRN220 2.103E+1

Example

2012/03/26 09:27:48 SwOnCnt: 028 OnTm: 015

TMP error history (command 288)

Answer ListNo, 'ERR' or 'WRN', ErrNo Example 05 WRN220

Present warnings (command 297)

Value Meaning

0x00000001 Warning pressure/flow 0x00000002 Warning pressure rise 0x00000004 Warning anode voltage 0x00000008 Warning pirani 0x00000010 Warning emission 0x00000020 Warning suppressor 0x00000040 Warning TMP 0x00000080 Warning Anybus 0x00000100 Warning maintenance 0x00000200 Warning I/O disconnected 0x00000400 Warning 5V 0x00000800 Warning U24VHz 0x00001000 Warning U24V Pwr12 0x00002000 Warning U24V Pwr 34 0x00004000 Warning U24V Pwr 56 0x00008000 Warning U24V8 0x00010000 Warning U24V9 0x00020000 Warning U24V10 0x00040000 Warning U24V11 0x00080000 Warning cathode voltage 0x00100000 Warning temperature MSB 0x00200000 Warning temperature preamplifier 0x00400000 Warning calibration request 0x00800000 Warning sniffer not connected 0x01000000 Preamp output too low

LD Protocol 45

Bus module fieldbus type (command 324)

Value Meaning

0x0005 Profibus 0x0020 CANOpen 0x0065 ControlNet 0x0084 Profinet IO 0x0096 Profinet IO 2-port 0x0085 Ethernet IP 0x0087 EtherCAT 0x0080 Modbus TCP 0x0090 CCLInk 0x0045 ModbusRTU 0x0025 DeviceNet

Bus module state (command 330)

Value Meaning

0 SETUP 1 NW_INIT 2 WAIT_PROCESS 3IDLE 4 PROCESS_ACTIVE 5ERROR 6 UNKNOWN 7 EXCEPTION

PLC input configuration IO module (command 438)

Value Meaning

-16 CAL

-15 KEY_3_N

-14 KEY_2_N

-13 KEY_1_N

-12 START_STOP_N

-11 SELECT_DYN_NORMAL_N

-10 GASBALLAST_N

-9 CLEAR_N

-8 ZERO_PULS_N

-7 ZERO_N

-6 STOP_N

-5 START_N

-4 SNIFF_VAC_N

-3 CAL_INTERN_N

-2 CAL_EXTERN_N

-1 DYN_CAL_N 0 NO_FUNCTION 1DYN_CAL 2 CAL_EXTERN 3 CAL_INTERN 4 SNIFF_VAC 5START

46 LD Protocol

Value Meaning

6STOP 7ZERO 8 ZERO_PULS 9 CLEAR 10 GASBALLAST 11 SELECT_DYN_NORMAL 12 START_STOP 13 KEY_1 14 KEY_2 15 KEY_3 16 CAL

Valves (command 448 & 449)

Bit Meaning

0 Test leak valve 1 gas ballast valve 2 output 3 3 output 4 4sniffer valve 5 output 6

Maintenance history (command 2662)

Answer ListNo, year/month/day, type Example 3 12/06/01 bearing/lubricant

LD Protocol 47

5.5 Error messages

Telegram error handling

• Slave discards all characters until it receives a STX as telegram start identifier.

• Slave does not generate an error message, if address is not correct.

• Slave reports CRC errors with error message 1 (CRC failure)

• Slave reports length errors with error message 2 (Illegal telegram length) or 11 (Data length is not correct for the command)

To prevent the response from colliding with the next request, the slaves do not respond in case of a timeout.

Error numbers (for Stw: Bit 15 to 1)

1 CRC-failure

2 Illegal telegram lenght

10 command doesn't exist

11 Data length is not correct for the command

12 Read not allowed

13 Write not allowed

14 Array-Index out of range or missing

20 Control actually not allowed with this interface

21 Password not OK

22 Command actually not allowed (e.g. calibration during Run-Up)

30 Data not in range

31 No data available

In case of error: STX, LEN, Stw, Cmd and one Data-Byte (with error number) sent

48 LD Protocol

6 Fieldbus Communication

6.1 Preface

In order to use Fieldbus Communication with LDS3000, you need an INFICON BusModule BM1000 connected to the I/O port of the LDS3000.

When setting up the PROFIBUS communication you need to use the GSD file provided by INFICON.

The following file contains the communication characteristics for the PROFIBUS: HMSB1811.GSD

You can download the file at http://www.anybus.de/

6.2 Setup

► Select the „Bus modul“ at the control unit (CU1000): MENU > SETTINGS > SETUP >

NTERFACES > ACCESSORY > DEVICE SEL. > BUS > OK.

► Select the field bus at the control unit (CU1000): M

NTERFACES > BUS MODULE > ADDRESS.

Information Attention: This value do not come into effekt until a restart of the leak

detector (power off / power on)!

ENU > SETTINGS > SETUP >

6.3 Process Data Mapping for Cyclic Data Transfer

6.3.1 Write Process Data (PLC-> Leak Detector)

This data is sent periodically from the programmable logic controller to the leak detector:

Byte Bit Name Meaning

0 (not used)

1Zero

2 Clear

3 Start/Stop

CAL intern

CAL extern

Transition 0 -> 1: 0x02 = Zero on Transition 1 -> 0: 0x00 = Zero off Transition 0 -> 1: 0x04=Clears errors and warnings

Transition 0 -> 1: 0x08= Start Transition 1 -> 0: 0x00= Stop

Transition to 0: 0x00 = Cancel internal calibration Transition to 1: 0x10 = Start internal calibration Transition to 0: 0x00 = Cancel external or dyn. calibration Transition to 1: 0x40 = Start external or. Dyn. calibration Transition to 2: 0x80 = Acknowledge closed test leak

Similar to PLC Input

ZERO *ZERO 6

Clear *CLS 5

Start / Stop

CAL intern *CAL:INT 4

CAL extern / CAL dynamic

Similar to RS232 ASCII cmd.

*START / *STOP

*CAL:EXT 4

Similar to RS232 LD cmd.

1, 2

Fieldbus Communication 49

Gas ballast

Zero mode

CAL mode

Sniff/Vac

Transition 0 -> 1: 0x01 = Gasballast on Transition 1 -> 0: 0x00 = Gasballast off (if Gasballast mode != GASBALLAST_ON)

0=normal 0x04 = 1 ... 2 dec. 0x08 = 2 ... 3 dec. 0x0C = 19/20 part of the value

0 = external CAL 0x10 = dyn. CAL 0x20…0x30 = not used

0=Vacuum 0x40 = Sniff 0x80 = according to PLC-Input 0xC0 = not used

Information The PROFIBUS-DP protocol is subject to change. If you are using this

protocol, please ask INFICON for an update.

6.3.2 Read Process Data (Leak Detector PLC)

This data is sent periodically from the leak detector to the programmable logic controller:

Gasballast

Select dyn/ norm

Sniff

*CONFIG:M ODE

401

Byte Bit Name Meaning

0 (not used) always 1

1 Zero active

2Error

3 Warning

State internal calibration

State external calibration

0=off 0x02 = on

0=no error 0x04 = error

0=no warning 0x08 = warning

0=inactive 0x10 = active 0x20/0x30 = not used

0=inactive 1 = 0x40 = active 2 = 0x80 = waiting for test leak closed 3 = 0xC0 = not used

Similar to PLC Output

ZERO active

Error

Warning

CAL active

Similar to RS232 ASCII cmd.

*STATUS:ZE RO?

*STATUS:C AL?

Similar to RS232 LD cmd.

Status word

260

50 Fieldbus Communication

3 4 5 6 7 8 9 10 11 12

Calibarion request

2 3

Emission

5 6

State

Leak rate (mbar·l/s)

Pressure Pressure in mbar(IEEE 754 float value)

Actual error number

0 = CAL request function disabled 1 = 0x01 = CAL request function enabled but no CAL requested 2 = 0x02 = CAL request function enabled and CAL requested 3 = 0x03 = not used 0 = 0x00 = Emission off 1 = 0x04 = Cathode 1 fixed 2 = 0x08 = Cathode 2 fixed 3 = 0x0C = Cathode 1 auto 4 = 0x10 = Cathode 2 auto

0 = 0x00 = Standby 1 = 0x20 = Error 2 = 0x40 = Calibration 3 = 0x60 = Runup 4 = 0x80 = Measure 5 = 0xA0 = Emission Off 6 ... 7 = 0xC0…0xE0 = not used

Actual leak rate in mbar·l/s (IEEE 754 float value)

Error / warning code (16 bit unsigned integer)

CAL request

Emission on

Run up, CAL active, Error, Ready

Recorder output (LR_LIN, LR_LOG ...)

Recorder output (P1)

*CONFIG:CA LREQ?

*STATUS:C ATHODE?

*STATUS?

*READ:MBA R*l/S?

*MEAS:P:MB AR?

*STATUS:E RROR?

419

530

Status word

129

290

6.4 Acyclic Data Transfer

Information If you want to use acyclic data transfer with PROFIBUS, you must use

a PROFIBUS master which supports DPV1 data transfers. A PROFIBUS master which supports DPV0 only, can only use cyclic data transfer

6.4.1 Addressing Rules for Acyclic Access

Application data instance (ADI) is equal to LD command number.

Fieldbus Rule Example

ADI = slot · 255 + index + 1

PROFIBUS

CANopen index = 2000h + ADI ModbusRTUholding register [1 ... 16] = 210h + (ADI -

ModbusTCP

DeviceNet Instance_number = ADI EthernetIP Instance_number = ADI CCLink no acyclic access available

slot = (ADI - 1) / 255 index = (ADI - 1) MOD 255

1) · 16 + ADI_array_index

holding register [1 ... 16] = 210h + (ADI -

1) · 16 + ADI_array_index

LD command 506 (Mass): Slot = 1 index = 250

Fieldbus Communication 51

Fieldbus supports all commands from LD protocol, except the commands in the following list:

26 Interface protocol (read only) 27 Used interface 275 Cal history 287 Error history 288 TMP error history 294 Text of error number 406 Serial number leak detector 407 Serial number MSB 450 Date + Time [YMDhms] 1161 Parameter reset 1300 Service buffer ion current 1301 Service buffer pressure 1 1302 Service buffer emis current 1303 Service buffer anode voltage 1304 Service buffer cathode voltage 1305 Service buffer heater power 1306 Service buffer leakrate 1307 Service buffer TMP mode 1308 Service buffer TMP speed 1309 Service buffer emission mode 1310 Service buffer sensor 3 2619 Start flash update 2594 Compatibility mode 2661 Set maintenance 2662 Maintenance done

6.5 Hardware Configuration for Profibus

Sequence of the data words (slots) must be:

• Output at first, inputs at second.

• One or two words are accessible at once.

• Output and inputs must have the same memory start address.

6.5.1 Assignment of the PROFIBUS Address

The PROFIBUS address can be assigned via CU1000 or via the hardware configuration tool of the PLC.

To assign the PROFIBUS address via CU1000 select

► "Main Menu -> Settings -> Set up -> Interfaces -> Bus module -> Address".

To assign the PROFIBUS address via hardware configuration tool of the PLC

► refer to the documentation af your PLC.

If you use a Siemens Step 7 you can also

52 Fieldbus Communication

► refer to the document: „How to configure an Anybus PROFIBUS slave module

with Siemens Step 7“

downloadable at http://www.anybus.com/support/support.asp?PID=321&ProductType=Anybus-CompactCom

6.5.2 Diagnosis with the CU1000 Info Menu

The current state of the BM1000 is visible in the info menu of the control unit CU1000: M

ENU > INFO > INTERFACES > PAGE 2 > INFO BUS MODULE.

6.5.3 Serial communication via RS232 (common)

Error Possible Reason Solution

Please use a 1:1 cable, (NO null-modem cable, also called cross-over cable!)

Deactivate flow control in PC/PLC or use cable according to the wiring diagram in Section 2

Select correct COM-Port

Check if interface parameters (Baud rate, number of data bits, parity bit and number of stop bits in the LDS3000 and PC / PLC match)

No characters are received via the interface / the Modul1000 does not answer

Wrong cable

Problems with flow control

Wrong COM-Port used at PC

Wrong interface parameters (Baud rate, Data bits, Parity, Stop bits)

No characters are received via the interface / the Modul1000 does not answer

The Modul1000 replies with „unreadable“ characters

Wrong protocol selected in the Modul1000

PC uses an USB-RS232 converter

Serial interface of PC is (still) occupied with a different program

Wrong interface parameters (Baud rate, Data bits, Parity, Stop bits)

Wrong protocol selected in the LDS3000

Select correct protocol in the LDS3000

In general the IO1000 will also work with an USBRS232- converter. However, these often cause multiple difficult to track problems (driver, flow control.) Please test your PC program on a “real” RS232 interface first preferably. Especially with USB-RS232-converters it is often helpful to use a cable according to the wiring diagram in chapter 4 of the IO1000 documentation. Check if other programs uses the serial interface. It is also possible that an already closed program has not released the interface again yet. In this case a restart of the PC will help.

Check if interface parameters (Baud rate, number of data bits, parity bit and number of stop bits in the IO1000 and PC / PLC match)

Select correct protocol in the LDS3000

Fieldbus Communication 53

6.5.4 ASCII Protocol specific

Error Possible Reason Solution

IO1000 does not reply / Modul1000 replies after several command with „E10“

Modul1000 replies with error message to the first command only, following commands are interpreted correctly

„Carriage Return“ at the end of the command is missing

Receiving buffer of the LDS3000 was not empty before sending the first command (e.g. by plugging in the RS232 cable during operation)

Finish all commands with „Carriage Return“ (ASCII 0dhex / 13dez)

In the ASCII protocol the LDS3000 has not time out function which will empty the receiving buffer automatically. Therefore, the buffer should be emptied before the first command by sending of ESC, ^C or ^X

6.5.5 LD Protocol specific

Error Possible Reason Solution

Wrong Address Always use Address 1 in LD protocol.

Try to use NOP command (05hex 04hex 01hex

IO1000 does not reply

IO1000 replys with CRC error (error code 1)

Other protocol errors

Wrong CRC calculation

00hex 00hex 77hex) first, to check if connection works in general. The answer should be 02hex 05hex ??hex ??hex 00hex 00hex ??hex Check you CRC code calculation. See example C source file "CRC_calculation.c" provided by INFICON. Check your code with unit test function in this source code file.

54 Fieldbus Communication

Fieldbus Communication 55

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INFICON LDS3000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual