Omega Products DP40-9SC2 Installation Manual

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®
User ’s Guide
http://www.omega.com
e-mail: info@omega.com
DPF400 Series
High Accuracy Frequency or
Analog Input Flow Indicator
Page 2
®
®
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The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. WARNING: These products are not designed for use in, and should not be used for, patient connected applications.
This device is marked with the international caution symbol. It is important to read the Setup Guide before installing or commissioning this device as it contains important information relating to safety and EMC.
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Table of Contents -
HOW TO USE THIS MANUAL
This manual is organized to follow a sequence of setting up the meter, configuring it, and operating it. The table of contents reflects this sequence. The contents also show that the manual contains a lot of information; we have taken care to answer likely questions and provide all the information you may need. We have purposely included all sections in the contents, to allow you to use it as an index–to easily pinpoint specific information and go
directly to it.
Page
SAFETY CONSIDERATIONS.......................................................................vi
SECTION 1 INTRODUCTION
1.1 Description ...................................................................................1
1.2 Features.........................................................................................1
1.3 Meter Modes.................................................................................2
1.3.1 Rate Meter/Totalizer.....................................................................2
1.3.2 Rate Meter/Totalizer/Square Root Extractor ...............................2
1.3.3 Batch Controller...........................................................................2
1.3.4 Clock.............................................................................................2
1.4 Optional Boards Overview...........................................................3
1.4.1 Isolated Pulse Input Board............................................................3
1.4.2 Isolated Analog Input Board........................................................3
1.4.3 Isolated Analog Output Board.....................................................4
1.4.4 Isolated Parallel BCD Output Board............................................4
1.4.5 Dual Relay Output and 4 Relay Output Board............................4
1.4.6 Isolated RS-232 Serial Communications Board ..........................4
1.4.7 Isolated RS-485 Serial Communications Board .........................5
1.5 Available Models and Options.....................................................5
Table of Contents
SECTION 2 SETUP
2.1 Unpacking ....................................................................................8
2.2 Safety Precautions ........................................................................10
2.2.1 Power Voltage...............................................................................10
2.2.2 Power Wiring................................................................................11
2.3 Assembly/Disassembly ..................................................................11
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Table of
Contents
Page
2.3.1 Opening the Meter.......................................................................11
2.3.2 Checking and Installing Jumpers.................................................15
2.3.2.1 Main Board Jumpers .....................................................................16
2.3.2.2 Optional Input and Output Board Jumper Information .............18
2.3.3 Installing Optional Boards ...........................................................19
2.3.3.1 Isolated Pulse Input Board............................................................21
2.3.3.2 Isolated Analog Input Board........................................................22
2.3.3.3 Isolated Analog Output Board .....................................................23
2.3.3.4 Isolated Parallel BCD (Binary-Coded Decimal) Output Board ..24
2.3.3.5 Dual Relay and 4 Relay Output Board ........................................25
2.3.3.6 Isolated RS-232 Serial Communications Board ..........................25
2.3.3.7 Isolated RS-485 Serial Communications Board ..........................26
2.3.4 Reinserting the Main Board Assembly into the Case .................26
2.3.5 Wiring...........................................................................................26
2.3.5.1 P1 - AC Power Wiring.................................................................27
2.3.5.2 Battery Backup Connections........................................................27
2.3.5.3 P2 - Control Input/Output Wiring ..............................................28
2.3.5.4 Basic Meter Input Wiring.............................................................29
2.3.5.5 Isolated Pulse Input Board Wiring...............................................29
2.3.5.6 Isolated Analog Input Board Wiring ...........................................29
2.3.5.7 Isolated Analog Output Board Wiring.........................................29
2.3.5.8 Isolated Parallel BCD Output Board Wiring...............................29
2.3.5.9 Dual Relay and 4 Relay Output Board Wiring............................30
2.3.5.10 Isolated RS-232 or RS-485 Serial Comm. Board Wiring............30
2.4 Panel-Mount Assembly ................................................................30
SECTION 3 FRONT AND REAR FEATURES
3.1 Front-Panel Displays and Buttons................................................33
3.2 Rear Connectors...........................................................................35
SECTION 4 BASIC CONCEPTS AND APPROACHES
TO SETUP AND CONFIGURATION
4.1 Choosing an Operating Mode......................................................39
4.2 Mode-Associated Measurements..................................................39
4.3 Using Scale Factors ......................................................................40
4.4 Using Offsets.................................................................................40
4.5 Automatic Scale and Offset.........................................................40
4.6 Overflow Values and Exponential Format...................................41
4.7 Negative-True Logic.....................................................................41
4.8 Different Meter Modes.................................................................41
4.9 Setpoints.......................................................................................42
4.9.1 Setpoint Assignments...................................................................42
4.9.2 Configuring Setpoints ..................................................................44
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4.10 Resets and Stops...........................................................................44
4.10.1 Power-On (Hard) Reset ...............................................................44
4.10.2 Configuration (Cold) Reset .........................................................44
4.10.3 Setpoint-Only Reset.....................................................................45
4.10.4 Rate and Sq Rt Mode Resets........................................................45
4.10.4.1 RESET-A ......................................................................................45
4.10.4.2 RESET-B.......................................................................................46
4.10.4.3 RESET-C.......................................................................................46
4.10.4.4 Front-Panel RESET......................................................................46
4.10.5 Batch Mode Resets.......................................................................47
4.10.5.1 RESET-A ......................................................................................47
4.10.5.2 RESET-B.......................................................................................47
4.10.5.3 RESET-C.......................................................................................47
4.10.5.4 Front-Panel RESET......................................................................48
4.10.5.5 Autoreset ......................................................................................48
4.10.6 STOP ............................................................................................48
4.11 Counting Up or Down .................................................................48
4.11.1 Counting Up.................................................................................49
4.11.2 Counting Down............................................................................50
4.12 An Example Showing Setpoint and Reset Control ....................52
Table of Contents
SECTION 5 CONFIGURING THE METER
5.1 Parameters, Choices, and Settings ...............................................54
5.2 The Basics of Configuration.........................................................55
5.3 Lockouts........................................................................................56
5.3.1 Lockouts and Corresponding Actions..........................................57
5.3.2 Setting Lockouts...........................................................................60
5.3.3 Removing the S1-A Jumper for Added Security.........................61
5.4 Other Meter Parameters...............................................................61
5.4.1 MODE (Operating Mode) ...........................................................61
5.4.2 CNFG 1 through CNFG 4 (Configuration Parameters)
Rate, Sq Rt, Batch........................................................................61
5.4.3 AVG.CNF (Running Average Configuration) Rate, Sq Rt........69
5.4.4 IN.SC.OF (Input Scale and Offset) Rate, Sq Rt, Batch .............70
5.4.5 OT.SC.OF (Output Scale and Offset) Rate, Sq Rt, Batch .........71
5.4.6 RTE DP (Rate Decimal Point) Rate, Sq Rt ................................73
5.4.7 RTE OF (Rate Offset) Rate, Sq Rt..............................................73
5.4.8 RTE SC (Rate Scale) Rate, Sq Rt...............................................74
5.4.9 TOT DP (Total Decimal Point) Rate, Sq Rt, Batch...................74
5.4.10 TOT OF (Total Offset) Rate, Sq Rt, Batch ................................75
5.4.11 TOT SC (Total Scale) Rate, Sq Rt, Batch..................................75
5.4.12 AL TI (Alarm Time) Rate, Sq Rt, Batch ....................................76
5.4.13 GATE T (Gate Time) Rate..........................................................76
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Table of
Contents
Page
5.4.14 BAUD, SER.CNF, DAT FT, BUS FT, ADDRES, SER TI (Baud Rate, Serial Configuration, Data Format, Bus Format,
Device Address, Serial Time) Rate, Sq Rt, Batch ......................77
5.4.15 SET TI (Set Time) Rate, Sq Rt, Batch ......................................80
5.4.16 BAT DP (Batch Decimal Point) Batch .......................................81
5.4.17 B LOAD (Batch Load) Batch......................................................81
5.4.18 BAT SC (Batch Scale) Batch ......................................................82
5.4.19 CAL VZ, CAL VS, CALmAZ, and CALmAS (Calibrate Voltage Zero, Calibrate Voltage Span,
Calibrate milliAmp Zero, Calibrate milliAmp Span).................82
5.5 Step-by-Step Programming Example 1:
Rate Mode; Shaft RPM from a Gear-Tooth Detector .................82
5.5.1 Determining the Rate Scale (RTE SC).......................................83
5.5.2 Configuring the Meter..................................................................83
5.6 Step-by-Step Programming Example 2: Linear Flow; Adding TOTAL to RATE
with Excitation from the Basic Meter..........................................85
5.6.1 Determining the Rate Decimal Point (RTE DP) and
Rate Scale (RTE SC)...................................................................85
5.6.2 Determining the Total Decimal Point (TOT DP) and
Total Scale (TOT SC) .................................................................86
5.6.3 Configuring the Meter..................................................................86
SECTION 6 OPERATING THE METER
6.1 Rate Mode ....................................................................................88
6.2 Sq Rt Mode...................................................................................89
6.3 Batch Mode ..................................................................................89
APPENDICES
A Basic Meter: General Information, Specifications,
Jumper Configuration, and Input Connections ..........................91
B Isolated Pulse Input Board: General Information,
Specifications, Jumper Configuration, and Wiring .....................97
C Isolated Analog Input Board: General Information,
Specifications, Jumper Configuration,
Wiring, and Calibration...............................................................107
D Isolated Analog Output Board: General Information,
Specifications, Wiring, and Calibration ......................................118
E Isolated Parallel BCD Output Board: General Information,
Specifications, Jumper Configuration, And Wiring....................122
F Dual Relay and 4 Relay Output Board: General Information,
Specifications, Jumper Configuration, and Wiring .....................128
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G Isolated RS-232 and RS-485 Serial Communications Boards:
General Information and Specifications......................................131
H Error Messages ..............................................................................132
J Factory Preset Configuration Settings/ User Settings .................134
K Ramp Specifications.....................................................................147
L Specifications................................................................................149
Table of Contents
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Safety
Considerations
SAFETY CONSIDERATIONS
This device is marked with the international Caution symbol. It is important to read this
manual before installing or commissioning this device as it contains important information relating to Safety and EMC (Electromagnetic Compatibility).
Unpacking & Inspection
Unpack the instrument and inspect for obvious shipping damage. Do not attempt to operate the
Note
This instrument has no power-on switch. An external switch or circuit-breaker shall be included in the building installation as a disconnecting device. It shall be marked to indicate this function, and it shall be in close proximity to the equipment within easy reach of the operator. The switch or circuit-breaker shall not interrupt the Protective Conductor (Earth wire), and it shall meet the relevant requirements of IEC 947–1 and IEC 947-3 (International Electrotechnical Commission). The switch shall not be incorporated in the mains supply cord.
Furthermore, to provide protection against excessive energy being drawn from the mains supply in case of a fault in the equipment, an overcurrent protection device shall be installed.
unit if damage is found.
This instrument is a panel mount device protected in accordance with Class I of EN 61010 (115/230 AC power connections). Installation of this instrument should be done by Qualified personnel. In order to ensure safe operation, the following instructions should be followed.
Note
•The Protective Conductor must be connected for safety reasons. Check that the power cable has the proper Earth wire, and it is properly connected. It is not safe to operate this unit without the Protective Conductor Terminal connected.
• Do not exceed voltage rating on the label located on the top of the instrument housing.
• Always disconnect power before changing signal and power connections.
• Do not use this instrument on a work bench without its case for safety reasons.
• Do not operate this instrument in flammable or explosive atmospheres.
• Do not expose this instrument to rain or moisture.
• Unit mounting should allow for adequate ventilation to ensure instrument does not exceed operating temperature rating.
• Use electrical wires with adequate size to handle mechanical strain and power requirements. Install without exposing bare wire outside the connector to minimize electrical shock hazards.
EMC Considerations
•Whenever EMC is an issue, always use shielded cables.
•Never run signal and power wires in the same conduit.
•Use signal wire connections with twisted-pair cables.
•Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems persist.
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l. Introduction
1.1 DESCRIPTION
The Counter Timer is a multifunctional panel meter that can measure counts, rates, flows, times, totals and batches from pulse and analog input sources over the range of 0.2 to 20,000 Hz.
The meter can function in four different modes and be applied to a wide range of applications, serving functions as simple as displaying incoming pulses–or as complex as detecting out-of-limits conditions, triggering alarms, and channeling communications for a process control system.
The front panel displays values and messages with six, 14-segment LEDs, indicates which mode-associated measurement is being displayed through three Measurement LEDs, and indicates alarm status through four Setpoint LEDs. Five buttons below the LED display allow easy front-panel configuration and access to the meter’s many features. These features can also be accessed through digital communications.
1
Introduction
The meter can be mounted in a panel or simply placed on a bench top.
1.2 FEATURES
The following list outlines the meter’s features.
• Six-digit display
• Microprocessor-based, with nonvolatile memory-no battery backup required
• Configurable via front-panel push buttons and/or through RS-232 or RS-485 ports
• High accuracy
• Large digital offset enabling easy scaling in engineering units
• Five open-collector outputs for RATE, TOTAL, BATCH count, BAT NO (Number of Batches), and TIME
• Programmable decimal point selection
• Read/Display/Output rates up to 25 per second
• Plug-in input and output optional boards
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1
1.3 METER MODES
Introduction
The meter can be configured to operate in four different modes. These are Rate Meter/Totalizer (Rate), Rate Meter/Totalizer/ Square Root Extractor (Sq Rt), Batch Controller (Batch), and Clock (C).
1.3.1 RATE METER/TOTALIZER
As a rate meter/totalizer, the meter measures the rate, totalizes and displays pulses in any engineering units required, and provides unregulated sensor excitation. The meter can also provide running averages and process time in HH:MM:SS format in this mode.
With the addition of the Isolated Analog Input Board, analog signals can be received and displayed in the required engineering units.
1.3.2 RATE METER/TOTALIZER/SQUARE ROOT EXTRACTOR
As a rate meter/totalizer/Square Root Extractor, the meter can accept dc signals from any typical differential flow transmitter and extract the square root to provide highly accurate flow values. Digital calculation ensures accurate readings–which can be dis­played in any engineering units desired.
This mode requires the Isolated Analog Input Board.
1.3.3 BATCH CONTROLLER
As a batch controller, the meter can count the batch, number of batches completed, and the grand total of pulses received. In addition, it has an internal timer for process time displayed in HH:MM:SS format. Any of the above functions can be displayed during the process without interrupting or stopping the process.
1.3.4 CLOCK
As a clock, the meter can function in real, 24-hour time mode using the HH:MM:SS display format. It can also function as a 99-hour process timer. Time is derived from the power line frequency, 50 or 60 Hz, which ensures accuracy. If power fails and the meter is equipped with a backup battery, the clock function continues working (although the display will not be lit). Refer to Section 2.3.5.2 for information on battery backup.
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1.4 OPTIONAL BOARDS OVERVIEW
1
The meter is designed to accommodate numerous optional boards.
These boards transform the meter into a single instrument that “can do it all.” On the input end, they allow the meter to accept signals from a wider variety of sources, and on the output end, to communicate with, or control a wide variety of other devices.
1.4.1 ISOLATED PULSE INPUT BOARD
The Isolated Pulse Input Board is a signal conditioning board that allows the meter to accept low- and high-level input signals from sources whose pulses may be too weak for the Main Board of the meter to handle, or that need selectable hysteresis and/or regulated excitation. This board is used mainly for weak magnetic pick-ups, high-level line voltage sources, and NAMUR sources.
If this board is used, the Isolated Analog Input Board cannot be used.
(See Appendix B for specifications, jumper configuration, wiring, and applications for the Isolated Pulse Input Board.)
1.4.2 ISOLATED ANALOG INPUT BOARD
Introduction
The Isolated Analog Input Board is a signal conditioning board that converts analog signals to frequency and allows the meter to accept input signals from non-pulsed or direct current sources. This board is often used with differential pressure flow transmitters to provide linear flow values. (First-time installation requires calibra­tion using calibration data on the back of the board.)
If this board is used, the Isolated Pulse Input Board cannot be used.
(See Appendix C for specifications, jumper configuration, wiring, and applications for the Isolated Analog Input Board.)
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1
Introduction
1.4.3 ISOLATED ANALOG OUTPUT BOARD
The Isolated Analog Output Board converts display readings into voltage or current output. This board is often used as a control board in process applications. (First-time installation requires calibration using calibration data on the back-the solder or out­board side of the board.) (See Appendix D for specifications, jumper configuration, wiring, calibration, and applications for the Isolated Analog Output Board.)
1.4.4 ISOLATED PARALLEL BCD (BINARY-CODED DECIMAL) OUTPUT BOARD
The Isolated Parallel BCD Output Board produces binary-coded decimal output for direct communication with a printer or with an intelligent device such as a PLC (Programmable Logic Controller).
If this board is used, the Dual Relay Output Board cannot be used.
(See Appendix E for specifications, jumper configuration, wiring, and applications for the Isolated Parallel BCD Output Board.)
1.4.5 DUAL RELAY OUTPUT AND 4 RELAY OUTPUT BOARD
The Dual Relay Output and 4 Relay Output Board enables setpoint-triggered switching to an external device.
If either option board is used, the Isolated Parallel BCD Output Board cannot be used.
(See Appendix F for specifications, jumper configuration, wiring, and applications for the Relay Output Board.)
1.4.6 ISOLATED RS-232 SERIAL COMMUNICATIONS BOARD
The Isolated RS-232 Serial Communications Board provides an isolated digital communications channel between a single meter and a computer, serial printer, or other device.
If this board is used, the RS-485 Serial Communications Board cannot be used.
(See Appendix G for specifications, jumper configuration, wiring, and applications for the Isolated RS-232 Serial Communications Board.)
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1.4.7 ISOLATED RS-485 SERIAL COMMUNICATIONS BOARD
The Isolated RS-485 Serial Communications Board provides an isolated digital communications channel where multiple meters (addressed from 0 to 199) can communicate with a single computer.
If this board is used, the RS-232 Serial Communications Board cannot be used.
(See Appendix G for specifications, jumper configuration, wiring, and applications for the Isolated RS-485 Serial Communications Board.)
1.5 AVAILABLE MODELS AND OPTIONS
The following models and options are available. Optional boards are either installed at the time of purchase, or available as separate items and installed by the user after purchase.
BASIC MODELS AND INPUT OPTIONS
MODEL NUMBER DESCRIPTION
DPF401 No optional input board; Basic Meter accepts low
level and high level pulses from TTL/CMOS sources, open collector outputs and contact closures; provides 14-20 V unregulated sensor excitation
1
Introduction
DPF402 Isolated Pulse Input Board. Single-input for magnetic
pick-ups with low- and high-level signals; direct connection to NPN, PNP, or NAMUR sensors. Includes electrically floating, regulated sensor excita­tion rated 12.6 V @ 70 mA or 8.2 V or 5 V
DPF403 Isolated Analog Input Board. Input ranges of
0-1 mA, 4-20 mA, 0-5 V, 1-5 V, and 0-10 V are jumper selectable. Standard factory default calibration: 4-20 mA dc = 0-10000
FOR OPTIONS ADD SUFFIX TO MODEL NUMBER
-GR Green LED display
-230V 230 V ac, power
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1
Introduction
CONTROL/BCD OUTPUT OPTIONS
MODEL NUMBER DESCRIPTION
DP40-B Isolated Parallel BCD (Binary-Coded Decimal)
Output Board
DP40-R Dual Relay Output Board; Two 7-amp,
Form-C Relays
DP40-R4 4 Relay Output Board; Two 7-amp & two 1 amp
Form-C Relays.
NOTE: Choose only one Control/BCD output option per meter. A 40-socket plug is included with the BCD option.
ANALOG OUTPUT OPTIONS
MODEL NUMBER DESCRIPTION
DP40-A Isolated Analog Output Board: Configurable output;
0-20 mA, 4-20 mA, 0-5 V, 0-10 V. Standard factory default calibration: 0-10000 = 4-20 mA dc
DATA COMMUNICATIONS OPTIONS
MODEL NUMBER DESCRIPTION
DPF400-S2 Isolated RS-232 Serial Communications Board* DPF400-S4 Isolated RS-485 Serial Communications Board**
NOTE: Choose only one option per meter. Both computer communications come with a 6-foot communications cable with phone plug termination.
* We recommend purchase of 9SC2 or 25SC2 (see OPTIONS below) ** We recommend purchase of 9SC4 or 25SC4 (see OPTIONS below)
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OPTIONS
MODEL NUMBER DESCRIPTION
DP40-9SC2 9-pin Serial Connector for RS-232 port DP40-9SC4 9-pin Serial Connector for RS-485 port DP40-25SC2 25-pin Serial Connector for RS-232 port DP40-25SC4 25-pin Serial Connector for RS-485 port
1
Introduction
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2
Setup
2. Setup
2.1 UNPACKING
Unpack all items and make sure that every item on the packing list is present. The items you should receive are listed below. If something is missing, use the phone number for the Customer Service Department nearest you.
Also, inspect the shipping container and enclosed equipment for any signs of damage. Take particular note of any evidence of rough handling in transit. Immediately report any damage to the shipping agent.
NOTE: The shipping agent will not honor any claims unless all shipping material is saved for their examination. After examining and removing contents, save all packing material and containers in the event that reshipment is required.
You should receive the following items :
QTY DESCRIPTION ILLUSTRATION
1 Basic meter with
main board (and optional boards if ordered by number); in plastic case with sleeve, panel gasket, two thumbnuts
1 Front-panel
button cover available with return of the postcard (see meter box)
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QTY DESCRIPTION ILLUSTRATION
1 Orange, 3-socket
power connector (P1); for AC input
1 Gray, 3-socket
input connector (P3); for signal input
1 Rear cover with
holddown screw
1 20-Socket Ribbon
Connector (P2)
L
2
1 2
N
3
1 2 3
Setup
2 Panel-mount gasket
(1 spare)
1 Operator’s manual
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Page 18
2.2 SAFETY PRECAUTIONS
2
Setup
The meter is protected in accordance with Class I of EN61010. Refer to Safety Considerations page.
WARNING: If your meter is to be wired to sensors or to control
!
2.2.1 POWER VOLTAGE
inputs that could have hazardous potentials, these potentials will be carried to the 20-pin output connector (P2) at the rear. They will also be present on the meter’s circuit boards. Follow all instructions carefully, inserting the electronics into the case and installing connec­tors BEFORE connecting the meter to any source of power.
DO NOT contact any exposed metal parts, install optional board(s), change jumpers, or in any way disassemble or assemble the meter while it is connected to AC voltage.
Note the following information and guidelines for safe operation of your meter:
Your power source voltage rating should agree with the voltage under which the meter has been configured to operate. The first thing you should do is verify this.
The meter’s operating voltage is shown in the VOLTS: entry of the ID and Serial Number Label. Figure 2-1 shows a copy of this label. It is located on the meter packing box and is clearly visible. (Another label is also affixed to the meter case.)
MODEL: SERIAL NO.: PART NO.: VOLTS: WATTS:
Figure 2-1. ID and Serial Number Label showing the Meter's operating voltage.
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2.2.2 POWER WIRING
CAUTION: The meter has no power-on switch; it will be ON
!
when power is applied.
Section 2.3.5 shows you how to wire not only the AC power connector, but all other connectors as well.
2.3 ASSEMBLY/DISASSEMBLY
2.3.1 OPENING THE METER
Your meter is fully assembled, but not wired. In most cases, if you have ordered optional boards with the meter, these boards will already be installed.
You will need to remove only the rear cover to complete wiring, but you will have to open the meter to do one or more of the following:
WARNING: You must disconnect and turn-off the power and
!
connector signals before accessing the unit and installing optional boards. Failure to do so may result in injury!
2
Setup
a. Check or reconfigure the Transformer Jumpers on the Main
Board so that they correspond to your line voltage (W1 and W2 for 115 V ac, or W3 for 230 V ac). See Section 2.3.2.1.
b. Access jumpers on the Main and optional boards.
See Section 2.3.2.
c. Install optional boards. See Section 2.3.3.
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2
Setup
REAR PROTECTIVE COVER
COVER MOUNTING SCREW
THUMBNUTS
GASKET
SIGNAL CONNECTOR BOARD
SLEEVE
AC POWER BOARD
MAIN BOARD ASSY
CASE
BEZEL
Figure 2-2. Exploded View of the Meter
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Page 21
Using Figures 2-2 as a guide, follow these simple instructions to open the meter:
2
!
IMPORTANT: Turn-off the power and input signals from the unit before proceeding. Failure to do so may result in injury!
1. Remove the cover mounting screw that secures the rear protective cover to the meter, and remove the Rear Protective Cover.
If you are simply wiring the meter–but not checking jumpers or
installing or removing boards–this is as far as the meter needs to be disassembled. Go to Section 2.3.5.
2. Remove all wiring connectors from the rear of the meter.
3. Remove the two thumbnuts that secure the case to the sleeve.
4. Remove the sleeve completely by sliding it back from the front bezel.
Setup
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Page 22
l. Introduction
1.1 DESCRIPTION
The Counter Timer is a multifunctional panel meter that can measure counts, rates, flows, times, totals and batches from pulse and analog input sources over the range of 0.2 to 20,000 Hz.
The meter can function in four different modes and be applied to a wide range of applications, serving functions as simple as displaying incoming pulses–or as complex as detecting out-of-limits conditions, triggering alarms, and channeling communications for a process control system.
The front panel displays values and messages with six, 14-segment LEDs, indicates which mode-associated measurement is being displayed through three Measurement LEDs, and indicates alarm status through four Setpoint LEDs. Five buttons below the LED display allow easy front-panel configuration and access to the meter’s many features. These features can also be accessed through digital communications.
1
Introduction
The meter can be mounted in a panel or simply placed on a bench top.
1.2 FEATURES
The following list outlines the meter’s features.
• Six-digit display
• Microprocessor-based, with nonvolatile memory-no battery backup required
• Configurable via front-panel push buttons and/or through RS-232 or RS-485 ports
• High accuracy
• Large digital offset enabling easy scaling in engineering units
• Five open-collector outputs for RATE, TOTAL, BATCH count, BAT NO (Number of Batches), and TIME
• Programmable decimal point selection
• Read/Display/Output rates up to 25 per second
• Plug-in input and output optional boards
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1
1.3 METER MODES
Introduction
The meter can be configured to operate in four different modes. These are Rate Meter/Totalizer (Rate), Rate Meter/Totalizer/ Square Root Extractor (Sq Rt), Batch Controller (Batch), and Clock (C).
1.3.1 RATE METER/TOTALIZER
As a rate meter/totalizer, the meter measures the rate, totalizes and displays pulses in any engineering units required, and provides unregulated sensor excitation. The meter can also provide running averages and process time in HH:MM:SS format in this mode.
With the addition of the Isolated Analog Input Board, analog signals can be received and displayed in the required engineering units.
1.3.2 RATE METER/TOTALIZER/SQUARE ROOT EXTRACTOR
As a rate meter/totalizer/Square Root Extractor, the meter can accept dc signals from any typical differential flow transmitter and extract the square root to provide highly accurate flow values. Digital calculation ensures accurate readings–which can be dis­played in any engineering units desired.
This mode requires the Isolated Analog Input Board.
1.3.3 BATCH CONTROLLER
As a batch controller, the meter can count the batch, number of batches completed, and the grand total of pulses received. In addition, it has an internal timer for process time displayed in HH:MM:SS format. Any of the above functions can be displayed during the process without interrupting or stopping the process.
1.3.4 CLOCK
As a clock, the meter can function in real, 24-hour time mode using the HH:MM:SS display format. It can also function as a 99-hour process timer. Time is derived from the power line frequency, 50 or 60 Hz, which ensures accuracy. If power fails and the meter is equipped with a backup battery, the clock function continues working (although the display will not be lit). Refer to Section 2.3.5.2 for information on battery backup.
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Page 24
1.4 OPTIONAL BOARDS OVERVIEW
1
The meter is designed to accommodate numerous optional boards.
These boards transform the meter into a single instrument that “can do it all.” On the input end, they allow the meter to accept signals from a wider variety of sources, and on the output end, to communicate with, or control a wide variety of other devices.
1.4.1 ISOLATED PULSE INPUT BOARD
The Isolated Pulse Input Board is a signal conditioning board that allows the meter to accept low- and high-level input signals from sources whose pulses may be too weak for the Main Board of the meter to handle, or that need selectable hysteresis and/or regulated excitation. This board is used mainly for weak magnetic pick-ups, high-level line voltage sources, and NAMUR sources.
If this board is used, the Isolated Analog Input Board cannot be used.
(See Appendix B for specifications, jumper configuration, wiring, and applications for the Isolated Pulse Input Board.)
1.4.2 ISOLATED ANALOG INPUT BOARD
Introduction
The Isolated Analog Input Board is a signal conditioning board that converts analog signals to frequency and allows the meter to accept input signals from non-pulsed or direct current sources. This board is often used with differential pressure flow transmitters to provide linear flow values. (First-time installation requires calibra­tion using calibration data on the back of the board.)
If this board is used, the Isolated Pulse Input Board cannot be used.
(See Appendix C for specifications, jumper configuration, wiring, and applications for the Isolated Analog Input Board.)
3
Page 25
1
Introduction
1.4.3 ISOLATED ANALOG OUTPUT BOARD
The Isolated Analog Output Board converts display readings into voltage or current output. This board is often used as a control board in process applications. (First-time installation requires calibration using calibration data on the back-the solder or out­board side of the board.) (See Appendix D for specifications, jumper configuration, wiring, calibration, and applications for the Isolated Analog Output Board.)
1.4.4 ISOLATED PARALLEL BCD (BINARY-CODED DECIMAL) OUTPUT BOARD
The Isolated Parallel BCD Output Board produces binary-coded decimal output for direct communication with a printer or with an intelligent device such as a PLC (Programmable Logic Controller).
If this board is used, the Dual Relay Output Board cannot be used.
(See Appendix E for specifications, jumper configuration, wiring, and applications for the Isolated Parallel BCD Output Board.)
1.4.5 DUAL RELAY OUTPUT AND 4 RELAY OUTPUT BOARD
The Dual Relay Output and 4 Relay Output Board enables setpoint-triggered switching to an external device.
If either option board is used, the Isolated Parallel BCD Output Board cannot be used.
(See Appendix F for specifications, jumper configuration, wiring, and applications for the Relay Output Board.)
1.4.6 ISOLATED RS-232 SERIAL COMMUNICATIONS BOARD
The Isolated RS-232 Serial Communications Board provides an isolated digital communications channel between a single meter and a computer, serial printer, or other device.
If this board is used, the RS-485 Serial Communications Board cannot be used.
(See Appendix G for specifications, jumper configuration, wiring, and applications for the Isolated RS-232 Serial Communications Board.)
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1.4.7 ISOLATED RS-485 SERIAL COMMUNICATIONS BOARD
The Isolated RS-485 Serial Communications Board provides an isolated digital communications channel where multiple meters (addressed from 0 to 199) can communicate with a single computer.
If this board is used, the RS-232 Serial Communications Board cannot be used.
(See Appendix G for specifications, jumper configuration, wiring, and applications for the Isolated RS-485 Serial Communications Board.)
1.5 AVAILABLE MODELS AND OPTIONS
The following models and options are available. Optional boards are either installed at the time of purchase, or available as separate items and installed by the user after purchase.
BASIC MODELS AND INPUT OPTIONS
MODEL NUMBER DESCRIPTION
DPF401 No optional input board; Basic Meter accepts low
level and high level pulses from TTL/CMOS sources, open collector outputs and contact closures; provides 14-20 V unregulated sensor excitation
1
Introduction
DPF402 Isolated Pulse Input Board. Single-input for magnetic
pick-ups with low- and high-level signals; direct connection to NPN, PNP, or NAMUR sensors. Includes electrically floating, regulated sensor excita­tion rated 12.6 V @ 70 mA or 8.2 V or 5 V
DPF403 Isolated Analog Input Board. Input ranges of
0-1 mA, 4-20 mA, 0-5 V, 1-5 V, and 0-10 V are jumper selectable. Standard factory default calibration: 4-20 mA dc = 0-10000
FOR OPTIONS ADD SUFFIX TO MODEL NUMBER
-GR Green LED display
-230V 230 V ac, power
5
Page 27
1
Introduction
CONTROL/BCD OUTPUT OPTIONS
MODEL NUMBER DESCRIPTION
DP40-B Isolated Parallel BCD (Binary-Coded Decimal)
Output Board
DP40-R Dual Relay Output Board; Two 7-amp,
Form-C Relays
DP40-R4 4 Relay Output Board; Two 7-amp & two 1 amp
Form-C Relays.
NOTE: Choose only one Control/BCD output option per meter. A 40-socket plug is included with the BCD option.
ANALOG OUTPUT OPTIONS
MODEL NUMBER DESCRIPTION
DP40-A Isolated Analog Output Board: Configurable output;
0-20 mA, 4-20 mA, 0-5 V, 0-10 V. Standard factory default calibration: 0-10000 = 4-20 mA dc
DATA COMMUNICATIONS OPTIONS
MODEL NUMBER DESCRIPTION
DPF400-S2 Isolated RS-232 Serial Communications Board* DPF400-S4 Isolated RS-485 Serial Communications Board**
NOTE: Choose only one option per meter. Both computer communications come with a 6-foot communications cable with phone plug termination.
* We recommend purchase of 9SC2 or 25SC2 (see OPTIONS below) ** We recommend purchase of 9SC4 or 25SC4 (see OPTIONS below)
6
Page 28
OPTIONS
MODEL NUMBER DESCRIPTION
DP40-9SC2 9-pin Serial Connector for RS-232 port DP40-9SC4 9-pin Serial Connector for RS-485 port DP40-25SC2 25-pin Serial Connector for RS-232 port DP40-25SC4 25-pin Serial Connector for RS-485 port
1
Introduction
7
Page 29
2
6. Using Figure 2-4 as a guide, bend the side-panel detents on the case outward and pull the board assembly out of the case by the mounting screw stem.
Setup
These six steps are known as “accessing the Main Board assembly.”
ID AND SERIAL NUMBER LABEL
SIGNAL INPUT JUMPER LABEL
Figure 2-4. Removing the Main Board Assembly from the Case
TO INSTALL
TO REMOVE
BEND DETENTS OUTWARD TO INSTALL MAIN BOARD
CASE
MOUNTING SCREW STEM
MAIN BOARD ASSY
The meter is now disassembled to the point where you can check and configure jumpers and install boards.
NOTE: When the sleeve is removed from the case in Step 5 above, the Connector Label on the case will be exposed. See Figure 2-5. Use this label for reference when wiring or con­necting plugs.
14
Page 30
P2/CABLE CONNECTOR
ALARM 1 OUTPUT
ALARM 3 OUTPUT
ALARM, BATTERY RETURN
P4/RS-232
6 5 4 3 2 1
P1/AC PWR
1 2 3
TWICE LINE FREQ
1 1
N/C COMM RTN RX TX RTS N/C
{
LINE NEUTRAL AC GND
RESET-A
RESET-B
TEST TX
PULSE OUTPUT
RESET-C
STOP
P4/RS-485
6 5 4 3 2 1
P6/RELAY
1 2 3
1 3 5 7 9
10
11
12
13
14
15
16
17
18
19
20
N/C B RX A RX COMM RTN B TX/RX A TX/RX
NO1 CM1 NC1
ALARM V + INPUT
2
ALARM 2 OUTPUT
4
ALARM 4 OUTPUT
6
ALARM 5 OUTPUT
8
DEBOUNCE TEST RX DIGITAL RETURN HOLD / PRINT REQ GATE INPUT BACKUP BATTERY +
P5 ANALOG OUT
P7/RELAY
1 2 3
1 2 3
1
2
Setup
1
RETURN 4-20 mA 0-10 V
NO2 CM2 NC2
BCD
P5
1
.
.
.
P18 for 4 RELAY
1
P8
...
...
1
P6
P2
1
.
..........
.
..........
P1
.
1
1
CONNECT TO LOW VOLTAGE LIMITED ENERGY CIRCUITRY ONLY.
P8
1
P7
P4
. . . .
1
.
19
Figure 2-5. Connector Label
2.3.2 CHECKING AND INSTALLING JUMPERS
This section contains figures and instructions for checking and installing jumpers, but it gives full information on the Main Board only. If you have any optional boards, refer to the appropriate appendix for specific jumper information.
NOTE: When referring to jumpers and the corresponding boards, the view is from the REAR of the meter.
P9
P3
.
1
.
.
.
1
.
.
PULSE INPUT
P9 & P3
FILTER SIG IN HI LEVEL PULL UP/DOWN
EXCITATION SIG IN LO LEVEL SIG RETURN
ANALOG INPUT
+24 V EXC SIGNAL IN RETURN
TEST TEST TEST
1
15
Page 31
2.3.2.1 MAIN BOARD JUMPERS
2
Setup
DISPLAY
BOARD
MAIN BOARD
!
Using Figure 2-6 and Table 2-1, configure or check Main Board jumpers.
CAUTION: The meter has no power-on switch; it will be in operation as soon as you apply power. To change the factory preset jumpers, disconnect the power from the unit. Failure to do so may result in injury! The jumpers must be changed by specially trained personnel.
W6
(BEHIND J13 PINS)
W7
S2
A
SIGNAL CONNECTOR BOARD
J3
J2
J14
T1
S1
J12
A
J13
J11
J10
W2
W3
W1
AC POWER BD
Figure 2-6. Main Board Jumpers
16
J1
W2 W1
W3
115 V ac
230 V ac
Page 32
TABLE 2-1. MAIN BOARD JUMPERS
LOCATION, VIEWING THE BOARD FROM THE
JUMPER REAR OF THE METER FUNCTION
S1-A On the right, immediately Enables push buttons to
behind the Display board control lockout
programming
S2-A First two pins of J13 on Channels non-isolated
the right side of the Main excitation out to P3-1; Board remove if input board used
W1 and W2 Left side Enables 115 V operation
W3 Left side Enables 230 V operation
W6 and W7 Right side of Main Board Bypasses isolation circuitry
next to J13 used for option boards;
remove if input board used
If your line voltage is 115 V ac, jumpers W1 and W2 (but NOT W3) should be installed.
2
Setup
If your line voltage is 230 V ac, jumper W3 (but NOT W1 or W2) should be installed.
NOTE: When referring to jumpers, the letter S means “switch” and the letter W means “wire.” Switch jumpers are caps that bridge two pins; they can easily be moved from one position to another. Wire jumpers are soldered in; they must be cut when “removed” and resoldered if reinstalled.
If no optional input board is used, jumper S2-A should be installed on the first two pins of J13. This jumper brings non-isolated excitation out to the P3-1 connection. Wire jumpers W6 and W7 should also be in place. These jumpers bypass the isolation circuitry used for optional boards. See Figure 2-6.
17
Page 33
2
If one of the optional input boards is used, S2-A should be removed (or be installed on only one pin), and W6 and W7 should be removed.
Setup
S1-A allows front-panel control of the three lockouts so that you can lock and unlock meter features. You may want to remove this jumper later to lock in certain settings that you don’t want to be changed. (See Section 5.3.) It should be installed when the meter is first configured.
2.3.2.2 OPTIONAL INPUT AND OUTPUT BOARD JUMPER INFORMATION
JUMPER(S) CONFIGURING
BOARD TYPE PRESENT INFORMATION NOTES
Isolated pulse input Yes Appendix B
Isolated analog input Yes Appendix C A one-time
calibration is needed when installed the first time.
Isolated analog output No Appendix D A one-time
calibration is needed when installed the first time.
Isolated Parallel BCD output Yes Appendix E
Dual relay output Yes Appendix F – and 4 Relay output
Isolated RS-232 Serial Communications Output No Appendix G
Isolated RS-485 Serial Communications Output Yes Appendix G
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Page 34
2.3.3 INSTALLING OPTIONAL BOARDS
FRONT
MAIN BOARD
NOTE: When referring to installing optional boards, the view is from the REAR of the meter.
Figure 2-7 shows the Main Board and Figure 2-8 shows an exploded view of the meter with the optional board locations. In Figure 2-7, the “front” of the board refers to the side with the Display Board; the back is the side with J1 and J2 connections. Refer to Figures 2-7 and 2-8 as you insert optional boards. All boards must be jumpered before insertion. See Section 2.3.2.
DISPLAY
BOARD
SIGNAL CONNECTOR BOARD
J2
J14
T1
J12
J11
J13
J10
2
Setup
J3
AC POWER BD
Figure 2-7. Main Board
REAR
J1
19
Page 35
2
Setup
PULSE INPUT BOARD OR ANALOG INPUT BOARD
ISOLATED ANALOG OUTPUT BOARD
RS-232/RS-485 BOARD
SIGNAL CONNECTOR BOARD
P13
P20
P14
P12
P11
J13
J12 J11
J14
P10 (4 RELAY BOARD ONLY)
J20
BCD or 4 RELAY BOARD
INTERCONNECT BOARD (PART OF BCD ASSY)
RETAINER (ALWAYS USED EXCEPT FOR BCD OR 4 RELAY OPTION)
REAR PROTECTIVE COVER
DUAL RELAY BOARD
P10
J10
AC POWER BOARD
MAIN BOARD ASSY
GASKET
COVER MOUNTING SCREW
THUMBNUTS
SLEEVE
BEND DETENTS OUTWARD TO INSTALL MAIN BOARD
CASE
Figure 2-8. Exploded View of Main and Optional Boards
20
Page 36
2.3.3.1 ISOLATED PULSE INPUT BOARD
The Isolated Pulse Input Board plugs into J13 on the right side of the Main Board. J13 consists 10-pins with a gap at pin 5.
S1
E
A
B
C
Figure 2-9. Isolated Pulse Input Board
D
F
J9
S1
P13
PIN 1
2
Setup
Follow these steps before installing the board:
1. Remove (or connect to a single pin) jumper S2-A, the black jumper clip on the first two pins of J13 on the Main Board.
2. Remove wire jumpers W6 and W7, the two soldered-in connec­tions to the immediate right of J13.
3. Plug the input board onto the J13 jack.
The Pulse Input Board and Analog Input Board can be installed at J13. However, only one can be installed at a time.
Refer to Appendix B to configure this board.
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2.3.3.2 ISOLATED ANALOG INPUT BOARD
2
Setup
The solder side of the Isolated Analog Input Board contains calibration data for precisely calibrating the board. Make sure you copy the data before you install the board. Record them here:
Input 1 @ 4 mA =
Input 2 @ 20 mA =
Input 1 @ 0 V =
Input 2 @ 5 V =
The Isolated Analog Input Board plugs into J13 also. See section
2.3.3.1, Steps 1 through 3.
A
AB
C
C
B
E
D
S1
J9
S2
S2
Figure 2-10. Isolated Analog Input Board
The Analog Input Board and Pulse Input Board can be installed at J13. However, only one can be installed at a time.
Refer to Appendix C to configure this board.
P13
PIN 1
22
Page 38
2.3.3.3 ISOLATED ANALOG OUTPUT BOARD
The solder side of the Analog Output Board contains calibration data for precisely calibrating the board. Make sure you copy the data readings–CAL VZ (Calibrate Voltage Zero), CAL VS (Cali­brate Voltage Span), CALmAZ (Calibrate milliAmp Zero), and CALmAS (Calibrate milliAmp Span)–before you install the board. Record them here:
CAL VZ =
CAL VS =
CALmAZ =
CALmAS =
The Analog Output Board plugs into J12, between J13 (on the right edge of the Main Board) and the transformer. J12 consists of 8 pins with a gap at pin 6.
NOTE: Future analog output boards will be supplied with a 10-pin connector for use with a DC powered version of this instrument.
CALmAS
2
Setup
CALmAZ
CAL VS
CAL VZ
130 m
S=
PIN 1
Figure 2-11. Isolated Analog Output Board
Refer to Appendix D to configure this board.
723
V Z=
P5
23
mA
Z=
715
12125
S=
P12
PIN 1
Page 39
2.3.3.4 ISOLATED PARALLEL BCD (BINARY-CODED DECIMAL) OUTPUT BOARD
2
Setup
The Isolated Parallel BCD Output Board mounts above (and parallel to) the Main Board using the small vertical Interconnector Board as a support. Note that this board is inserted component-
side down.
S5
A
E
C
G
S4
A B
S1
A A
J8
U1
S2
L1
S3
A B
S6
B
A
A
S7
B
A
B
S8
J20
PIN 1
Figure 2-12. Isolated Parallel BCD Output Board
1. Insert the P14 plug of the Interconnect Board onto the J14 pins on the Main Board. J14 consists of 5 vertical pins on the left side of the Main Board, immediately behind the Display Board.
2. Insert the P20 connector of the Interconnect Board onto the J20 pins on the BCD Board. (See Figure 2-8.)
The Dual Relay or 4 Relay Output Option may not be installed at the same time as the Parallel BCD Output Option.
Refer to Appendix E to configure this board.
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Page 40
2.3.3.5 DUAL RELAY AND 4 RELAY OUTPUT BOARDS
4 RELAY BOARD
PIN 1 OF CABLE
PIN 1
MAIN BOARD
J10
P10
The Dual Relay Board is a vertical board and the 4 Relay board is a horizontal board which plugs into J10, the double row of 4 pins each at the rear of the Main Board.
P7
P6
Figure 2-13. The Dual Relay Output Board and the 4 Relay Output Board.
Both the Dual Relay Output Board and the 4 Relay Output Board can be installed at J10. However, only one option board can be installed at a time.
Refer to Appendix F to configure this board.
2
Setup
2.3.3.6 ISOLATED RS-232 SERIAL COMMUNICATIONS BOARD
The Isolated RS-232 Serial Communications Board plugs into J11, to the right of the transformer.
P 11
Figure 2-14. Isolated RS-232 Serial Communications Board
J11 consists 11 pins with a gap at pin 9. (Note that the mating
socket of the communications board does not mate with pin 11 of J11; this pin is reserved for future use.)
The RS485 Board can be installed at J11. However, only one option board can be installed at the same time.
25
J4
PIN 1
Page 41
2.3.3.7 ISOLATED RS-485 SERIAL COMMUNICATIONS BOARD
2
Setup
The Isolated RS-485 Serial Communications Board mounts in a manner identical to that of the RS-232 board in the previous section.
S1
A
B
Figure 2-15. Isolated RS-485 Serial Communications Board
The RS232 Board can be installed at J11. However, only one option board can be installed at the same time.
Refer to Appendix G to configure this board.
2.3.4 REINSERTING THE MAIN BOARD ASSEMBLY INTO THE CASE
S3
A
P11
J4
PIN 1
A
S2
2.3.5 WIRING
Reinsert the Main Board into the case once Main Board jumpers have been configured (Section 2.3.2.1) and optional boards have been configured and installed (Sections 2.3.2.2 through 2.3.3).
Spread the side-panel detents of the case, and carefully slide the Main Board all the way in.
You are now ready to wire your meter.
The way you connect your input wiring to your meter depends on your pulse or input source, and the types of optional boards you have installed. Therefore, this section contains complete instruc­tions for wiring only the AC Power connector (P1), and guidelines for wiring the input/output control connector (P2). You will be referred to the appropriate appendix for specific wiring instructions based on your optional board configuration.
26
Page 42
2.3.5.1 P1 - AC POWER WIRING
!
!
CAUTION: As mentioned in Section 2.2.2, the meter has no power ON/OFF switch. The meter will be ON when power is applied.
WARNING: Do not connect ac power to your meter until you have completed all input and output connections. Failure to do so may result in injury! This device must only be installed electrically by specially trained electrician with corresponding qualifications. The meter is factory set to the power specified by the customer at the time of ordering. The voltage is printed on the Label under Input power.
Wire your power (from a wall socket or other source) to P1, the orange, 3-socket connector that plugs into the 3 pins on the left side as you view the meter from the rear. Refer to Figure 2-16 and Table 2-2 below.
LN
ORANGE CONNECTOR
EARTH
NEUTRAL
LINE
FUSE
SWITCH
Check for proper Earth grounding in the power distribution system (single phase).
GREEN WIRE
L
N
[
P1
1
2
3
2
Setup
Figure 2-16. P1, ~AC Power Connector Wiring
TABLE 2-2. P1, AC POWER CONNECTOR WIRING
P1 AC POWER EUROPE USA
1 {ac Line Brown Black 2 {ac Neutral Blue White 3 {ac Protective Earth GND Green/Yellow Green
2.3.5.2 BATTERY BACKUP CONNECTIONS
The purpose of the battery backup is to allow the internal clock to continue to run when a loss of the AC power is experienced. All other functions will cease to operate until AC power is resumed. The minimum requirements of the battery needed is 7-12 Vdc at 50 mA.
Connect the negative lead of your battery to P2-9 (ALARM, BATTERY RETURN) and the positive lead of your battery to P2-20 (BACKUP BATTERY).
WIRE COLOR
27
Page 43
2.3.5.3 P2 - CONTROL INPUT/OUTPUT WIRING
2
Setup
P2, the 20-socket ribbon connector plugs into the center rear of the Main Board, sends out the setpoint transistor collectors and permits remote control of significant meter features. Table 2-3 describes the function of each pin.
TABLE 2-3. P2, INPUT/OUTPUT CONNECTIONS
P2 SOCKET/ PIN NO. DESCRIPTION/FUNCTION
P2-1 Setpoint 1 transistor open-collector output P2-2 Input of external V+ used for setpoint transistors so that
internal diodes can clamp inductive-load spikes
P2-3 RESET-A: When grounded in Rate or Sq Rt Modes,
resets TOTAL to 0, resets TOTAL setpoint latches; in Batch Mode, starts a new BATCH count, increments BAT NO (Number of Batches), resets BATCH-count
setpoint latches, and clears any STOP (See Section 4.10) P2-4 Setpoint 2 transistor open-collector output P2-5 Setpoint 3 transistor open-collector output P2-6 Setpoint 4 transistor open-collector output P2-7 Twice-line-frequency, 5-V pulse output (also used by
microcontroller to detect line failure) P2-8 Setpoint 5 transistor open-collector output P2-9 Return ground connection: SP-transistor external supply
and/or backup battery ground P2-10 Debounce capacitor for P3-2 signal input (tie to ground
for contact input) P2-11 RESET-B: When grounded in Rate or Sq Rt Modes,
starts a new AVG RTE (Average Rate) period, resets
RATE setpoint latches; in Batch Mode, resets BAT NO
(Number of Batches) to 0 (if count is up) or to
Setpoint 4 value (if count is down), and resets
BAT NO setpoint latches (if SP4 has been assigned)
(See Section 4.10) P2-12 TTL-level Test RX P2-13 TTL-level Test TX P2-14 Meter digital ground (internally connected to P2-9) P2-15 Programmable Pulse Output (see AL TI, Section 5.4.12)
28
continued next page
Page 44
continued from previous page
P2 SOCKET/ PIN NO. DESCRIPTION/FUNCTION
2
P2-16 HOLD/PRINT REQUEST: When grounded, if enabled
by CF4.3 and CF4.4, freezes displayed value/initiates print out (V01 Command)
P2-17 STOP: When grounded in rate or sq rt modes, stops
the clock until released; in batch mode, sets all setpoint
outputs to their active states
P2-18 GATE: Nonisolated input: Can be used as the input
signal or to gate P3/P9 inputs
P2-19 RESET-C: when grounded in rate or sq rt modes,
resets the clock to SET TI (Set Time, see Section
5.4.15), and resets TIME setpoint latches; in Batch, resets the clock to SET TI, resets the grand TOTAL to 0, resets a TOTAL setpoint latch (See Section 4.10)
P2-20 Backup battery +V input
2.3.5.4 BASIC METER INPUT WIRING
If you are going to be operating the meter as a basic meter–with no optional boards–see Appendix A for further wiring instructions.
2.3.5.5 ISOLATED PULSE INPUT BOARD WIRING
If your meter has the isolated pulse input board, see Appendix B for wiring.
Setup
2.3.5.6 ISOLATED ANALOG INPUT BOARD WIRING
If your meter has the isolated analog input board, see Appendix C for wiring.
2.3.5.7 ISOLATED ANALOG OUTPUT BOARD WIRING
If your meter has the isolated analog output board, see Appendix D for wiring.
2.3.5.8 ISOLATED PARALLEL BCD OUTPUT BOARD WIRING
If your meter has the isolated parallel BCD output board, see Appendix E for wiring.
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Page 45
2.3.5.9 DUAL RELAY OUTPUT AND 4 RELAY OUTPUT BOARD WIRING
2
Setup
If your meter has the Dual Relay Output Board or the 4 Relay Output Board, see Appendix F for wiring.
2.3.5.10 ISOLATED RS-232 OR RS-485 SERIAL COMMUNICATIONS BOARD WIRING
If your meter has either the Isolated RS-232 or RS-485 Serial Communications Board, see Appendix G for wiring or connections.
2.4 PANEL-MOUNT ASSEMBLY
The meter can be mounted in a panel so that the front of the meter is flush with the vertical panel surface. Panel mounting can be seen as simply “sandwiching” the panel between the inner case and the outer sleeve in the last phases of assembly. Figure 2-17 shows
the panel cutout dimensions, and the dimensions for the panel thickness. It requires that the following already be done:
1. Your line voltage rating has been checked against the meter rating on the ID and serial number label on the meter case. See Section 2.2.1.
2. You have configured all jumpers–those on the main board as well as those on any optional boards. See Section 2.3.2.1 for main board jumper configuration and Appendices B through G for optional board jumper configuration.
!
3. You have installed all optional boards and inserted the main board assembly back into the case. See Sections 2.3.3 and 2.3.4.
4. You have wired P1, the AC power connector, and P2 the input/ output control connector; connectors are not installed in the meter, but are ready to be. See Sections 2.3.5.1 and 2.3.5.2.
5. You have wired all connectors for optional boards; connectors are not connected to the meter, but are ready to be. See Appen­dices B through G.
CAUTION: Connectors with the wiring connections will be installed after mounting the unit.
If all of these steps are done, continue here using Figure 2-17 as a guide:
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2
PANEL CUTOUT
0.06
R
[1.5]
4PLCS
3.622 +0.032/-.000 [92.00 +0.81/-0.00]
PANEL
Setup
PANEL THICKNESS
0.25 [6.4] MAX
0.03 [0.8] MIN
1.772 +0.024/-.000 [45.00 +0.61/-0.00]
REAR PROTECTIVE COVER
COVER MOUNTING SCREW
THUMBNUTS
METER
SLEEVE
CASE
GASKET
BEZEL
Figure 2-17. Panel-Mount Assembly
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2
6. Punch or cut a hole in the panel using the panel cutout dimensions in Figure 2-17. Remove burrs and paint the panel as required.
Setup
!
7. Insert the panel-mount gasket around the rear of the case and slide it forward to the bezel (if it’s not already in place).
8. Working from the front of the panel, insert the case assembly, rear end first, all the way into the panel cutout such that the gasket firmly backs the panel surface.
9. Working from the rear of the panel, slide the sleeve forward over the case and up to the panel surface.
The panel should now be sandwiched between the bezel-backed gasket in front and the sleeve in back.
10. Replace the thumbnuts that secure the sleeve tabs to the case.
WARNING: Do not "turn-on" the ac power and input signals until all connections are connected to the meter.
11. Set P1, the AC power connector, aside and connect or recon­nect all other connectors to the back of the meter using Figures 3-2 and 3-3 in Section 3.2 as guides.
NOTE: The P1 connector is “keyed”; it is shaped in such a way that it fits only the J1 male pins.
Connect P1 last.
12. Replace the rear protective cover and secure it with the cover mounting screw.
Your meter is now ready for operation and you can turn-on the power.
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3. Front and Rear Features
3.1 FRONT-PANEL DISPLAYS AND BUTTONS
Refer to Figure 3-1 as you read about front panel displays and buttons.
2 2 2 3
4 5
Figure 3-1. Front Panel
TABLE 3-1. FRONT-PANEL DISPLAYS AND BUTTONS
FRONT-PANEL BUTTON OR
ITEM FEATURE DESCRIPTION/FUNCTION
1 6-Digit Display 6-Digit, 14-segment, 0.54-inch LED
3
3 3
6
display produces alphanumeric readout; programmable decimal point; red with green option
7
8
3
Front
1
and Rear Features
2 Measurement Green LEDs; designate which
measurement is being displayed (See DISPLAY, below)
3 Setpoint LEDs Red LEDs; designate which setpoints are
active; when flashing, designate which setpoint is being viewed and/or set
4 SETPTS Button In Run mode changes to Setpoint Mode
and allows setting of five setpoints; allows
value change by pressing the /DISPLAY
button and the /STOP button
33
continued next page
Page 49
3
Front
and Rear
Features
continued from previous page
FRONT-PANEL BUTTON OR
ITEM FEATURE DESCRIPTION/FUNCTION
5 /DISPLAY Two-Function button: In Run Mode,
Button sequences the display through mode-
6 /STOP Button Two-Function button: In run mode,
(STOP enabled imposes STOP condition; in configura­by CF4.8=1) tion and setpoint modes, accesses the
associated measurements; in Configura­tion and Setpoint Modes, sequences through possible digit and numerical settings
• In Rate-Run Mode, sequences the display through unlocked values of RATE, AVG RT, TOTAL, and TIME
• In Sq Rt-Run Mode, sequences the display through unlocked values of SQ RT, AVG RT, TOTAL and TIME
• In Batch-Run Mode, sequences the display through unlocked values of BATCH, BAT NO, TOTAL and TIME
• In Setpoint and Configuration Modes, sequences through possible alphanumeric settings: For numbers,increments the flashing digit by 1; for alphabetical settings, sequences to the next possible setting
next digit or choice
• In batch-run mode, if CF4.8=1, puts all setpoints in their ACTIVE states and displays STOP. (After 3 seconds,
the /STOP button can be pressed again to reset alarms and return to run mode)
• Inactive in rate-run or sq rt-run modes
• In setpoint mode advances the flashing digit one place to the right, making the new digit accessible for
resetting by the/DISPLAY button
34
continued next page
Page 50
continued from previous page
FRONT-PANEL BUTTON OR
ITEM FEATURE DESCRIPTION/FUNCTION
7 MENU Button • In run mode, terminates measure-
(Enabled by ments and switches to Configuration L3C.8=0; Mode disabled by • In configuration mode, stores new L3C.8=1 and values in EEPROM (nonvolatile removal of S1) memory) and advances the display to
8 RESET Button • In Run Mode, RESETs the value of
(Enabled by the measurement on display to zero CF4.7=0) (or to the reset value designated by
• In configuration mode, advances the flashing digit one place to the right, making the new digit accessible for
resetting by the /DISPLAY button;
advances the displayed choice to the next choice in sequence
the next parameter to be programmed
configuration) Also RESETs any latched alarms assigned to the dis played measurement
• In setpoint mode, switches back to run mode; any new setpoint values entered with the /STOP button and the
/DISPLAY button that have not
been stored are discarded
• In configuration mode, the first press backs up one parameter (Menu item); the second one RESETs the meter and returns to run mode
3
Front and Rear Features
3.2 REAR CONNECTORS
Figure 3-2 shows the rear of the meter with the Dual Relay Board, and a serial communications board. Figure 3-3 shows it with the Isolated Parallel BCD Output Board, a serial communications board, Isolated Analog Output Board, and Analog or Pulse Input Board. Figure 3-4 shows the connector label with pin assignments.
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3
Front
and Rear
Features
P6
1
2
P1
L
1 2
N
3
P7
3
1
2
3
J4
1
P2
1
20
P18
2
3
4
5
6
1 2 3
1 2 3
P9
P3
Figure 3-2. Rear View of the Meter with the 4-Relay and
Serial Communications Boards
U1
L1
P1
L
1 2
N
3
1
P8
U20
L20
P5
1 2 3
1 2 3
P9
P3
J4
1 2
20
P2
3
Figure 3-3. Rear View with the BCD, Serial Communications, and
Analog Output Boards
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P2/CABLE CONNECTOR
ALARM 1 OUTPUT
ALARM 3 OUTPUT
1 2 3
{
1
P1
...
1
N/C COMM RTN RX TX RTS N/C
LINE NEUTRAL AC GND
P8
P6
P2
..........
..........
1
TWICE LINE FREQ
...
1
ALARM, BATTERY RETURN
P4/RS-232
6 5 4 3 2 1
P1/AC PWR
.
.
.
1
CONNECT TO LOW VOLTAGE LIMITED ENERGY CIRCUITRY ONLY.
RESET-A
RESET-B TEST TX
PULSE OUTPUT
RESET-C
1 1
1
P8
P4
. . . .
1
.
19
P7
STOP
P4/RS-485
6 5 4 3 2 1
P6/RELAY
1 2 3
BCD
1
.
.
.
P5
1 3 5 7 9 11 13 15 17 19
P18 for 4 RELAY
.
1
.
.
P9
.
1
.
.
P3
ALARM V + INPUT
2
ALARM 2 OUTPUT
4
ALARM 4 OUTPUT
6
ALARM 5 OUTPUT
8
DEBOUNCE
10
TEST RX
12
DIGITAL RETURN
14
HOLD / PRINT REQ
16
GATE INPUT
18
BACKUP BATTERY +
20
N/C B RX A RX COMM RTN B TX/RX A TX/RX
NO1 CM1 NC1
PULSE INPUT
FILTER SIG IN HI LEVEL PULL UP/DOWN
EXCITATION SIG IN LO LEVEL SIG RETURN
1
P5 ANALOG OUT
1 2 3
P7/RELAY
1 2 3
P9 & P3
ANALOG INPUT
+24 V EXC SIGNAL IN RETURN
TEST TEST TEST
3
Front and Rear Features
1
RETURN 4-20 mA 0-10 V
NO2 CM2 NC2
1
Figure 3-4. Connector Label
TABLE 3-2. REAR CONNECTORS
CONNECTOR NUMBER DESCRIPTION
P1 AC Power Connector; 3-socket connector for AC power input.
P2 Control Input/Output connector; 20-socket ribbon
connector sends out setpoint transistor collectors and allows remote control of certain meter features.
continued next page
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3
Front
and Rear
Features
continued from previous page
CONNECTOR NUMBER DESCRIPTION
P3 Input and Excitation connector; 3-socket input plug for
unregulated excitation for Basic Meter; low level input and excitation for Isolated Pulse Input Board.
Not used with Analog Input Board (test points for factory use only).
P4 Isolated RS-232 or RS-485 Serial Communications
Board connection for digital communications; 6-spring RJ-12 telephone plug (for 7-foot cable furnished with either board).
P5 Isolated Analog Output connector; 3-socket output plug
for optional analog output.
P6 and P7 Dual Relay and 4 Relay connector; 3-socket output
plugs for optional 7-amp, Form-C Relays.
P8 Isolated parallel BCD Output Board connector; 40-socket
plug for optional BCD output; connects to ribbon cable.
P9 3-Socket optional input board connector; for Isolated Pulse
Input Board, high-level input and filter connections; for Isolated Analog Input Board, input, excitation, and common return.
P18 4 Relay connector; 6-socket output plug for optional 1-amp,
Form-C relays.
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4. Basic Concepts and Approaches to Setup and Configuration
Your application and what you need to accomplish will dictate setup and configuration of the meter. This section shows you how the meter works; it contains information that will help you see how your meter can best be connected to peripheral devices, or to resets and alarms.
4
4.1 CHOOSING AN OPERATING MODE
One of the first decision you need to make is to determine what MODE you want the meter to run in. There are two rate modes—Rate and Sq Rt—that count per unit time, and one counting mode—Batch.
If you need to measure a simple rate, you should use Rate Mode. If your input signal is proportional to the square of the quantity that you are measuring, you should use Sq Rt mode. Differential pressure transducers produce this type of input and almost always require the use of the isolated analog input board. If you need to count, especially on numerous levels, you should use Batch Mode.
4.2 MODE-ASSOCIATED MEASUREMENTS
Each mode has 4 associated measurements that can be displayed by
pressing the /DISPLAY button on the front panel. Table 4-1
shows these measurements for each mode.
TABLE 4-1. MODE-ASSOCIATED MEASUREMENTS
Basic Concepts
MODE ASSOCIATED MEASUREMENT
Rate RATE AVG RT TOTAL TIME Sq Rt SQ RT AVG RT TOTAL TIME
(Square Root) (Average Rate)
Batch BATCH BAT NO TOTAL TIME
(unit count) (Number of
Batches)
For instance, if the meter is in Rate Mode, you can press the
/DISPLAY button to sequence through display readings of
RATE, AVG RT (Average Rate), TOTAL, and TIME.
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4
When any mode-associated measurement (except TIME) is on the display, the corresponding Measurement LED is lit. The first measurement in any mode (RATE, SQ RT, or BATCH) corre­sponds to the top LED.
The factory preset operating mode of the meter is Rate. The factory preset Rate units are Hertz–cycles per second–which the meter interprets as pulses per second.
Basic
Concepts
4.3 USING SCALE FACTORS
One of the great features of the meter is that the input units can be converted to units other than Hertz (frequency), and the associated TOTAL can also have independent units. This is accomplished by using scale factors.
Input units are converted to other display units by using a rate scale factor (RTE SC) for Rate and Sq Rt Modes, or a Batch scale factor (BAT SC) for the Batch Mode. For instance, you are in Rate Mode, filling barrels of wine; you want to show the rate of filling in gallons per minute, but the total in barrels. You would use the RTE SC parameter to convert the incoming signal from Hertz to gallons per minute, and the TOT SC parameter to convert the total from pulses to barrels. When the meter is running and you press the
/DISPLAY button to view readings, the RATE reading will be in
gallons per minute, and the TOTAL reading in barrels.
4.4 USING OFFSETS
The meter allows you not only to scale RATE and TOTAL values, but to offset them as well. For instance, you have a dam that is 1000 feet above sea level. You have scaled the incoming signal so that the display reads in feet. Now you want to offset this reading so that it reflects the height above sea level. You would use a Rate
Offset (RTE OF) of 1000. When you press the /DISPLAY
button to view the RATE reading, it will show the height of the water above sea level.
4.5 AUTOMATIC SCALE AND OFFSET
The Automatic Scale and Offset feature is a function that auto­matically sets the scale factors of the input signal and the Rate reading to 1, and the offset values of the input signal and Rate
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reading to 0. It provides a quick way to “wipe out” scale factors and offsets so that they can be reconfigured easily. This feature is enabled by setting configuration choice CF4.8 to 1. (See Section
5.4.2.)
4.6 OVERFLOW VALUES AND EXPONENTIAL FORMAT
If your source signal units are Hertz, the meter is counting many pulses every second. This means that the TOTAL count can climb very quickly. If you are in this or a similar situation, you will almost always want to convert TOTAL units to other units that scale down the count. When the meter encounters a count too large to show on the 6-digit display, it begins using exponential format like this:
3.23 E8
The E designates the exponent of 10. In this example 3.23 E8 =
3.23 * 108 = 323000000. The exponent power can be seen as the number of places the decimal point should be moved to the right.
4.7 NEGATIVE-TRUE LOGIC
In places throughout this manual, you will see a bar over certain words, like this:
RESET-A
This bar indicates Negative-true logic, also referred to as a NOT condition. This means that the indicated function must “go low” to be activated. In the example above, your input voltage to the connector pin that controls a RESET-A must be low in order to activate the reset.
4
Basic Concepts
4.8 DIFFERENT METER MODES
Modes are ways in which the meter operates or can be configured.
1. Run Mode is the generic term that defines the operating mode of the meter when it is not being configured or at a STOP. There are four kinds of Run Modes: Rate, Sq Rt, Batch, and Clock. (Since Clock always runs in the background, it is not configurable as a Run Mode.)
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4
Basic
Concepts
Run Mode is accessed under the following conditions:
a. Whenever power is applied to the meter b. When the RESET button is pressed twice in the middle of the
Parameter list, (or three times if the display shows a submenu) in
Configuration Mode c. At the end the Parameter list in Configuration Mode d. At the end of the setpoint sequence in Setpoint Mode e. After a 3-second STOP has been initiated (and terminated when
Whenever the meter starts operating in, or reverts to, Run Mode, the word RUN momentarily shows on the display. If the meter is in Rate, Sq Rt, or Batch Mode, one of the Measurement LEDs is also lit.
2. Configuration Mode is the mode that allows you to configure the
3. Setpoint Mode. This mode allows you to configure the setpoint
the /STOP button is pressed again) in Batch-Run Mode
meter. It is accessed by pressing the MENU button. Most
setpoint assignments can be configured in this mode; the only
assignments that cannot be configured are the setpoint values.
See Section 5 for more information on configuring the meter.
values only. It is accessed by pressing the SETPTS button. See
the Section 4.9 for more information on setpoints.
4.9 SETPOINTS
One of the most important functions of the meter is to monitor counts and rates, and at certain pre-determined values, initiate appropriate responses. These pre-determined values are called setpoints and the responses they initiate may be alarms, resets, or any other type of action that must be carried out at a certain time.
The meter has a total of 5 setpoints, numbered in sequence— Setpoint 1, Setpoint 2, etc. Each one is associated with a transistor that brings about a response.
4.9.1 SETPOINT ASSIGNMENTS
In a strict sense, setpoints are nothing more than reference points awaiting assignments. Each one must be assigned the following attributes or characteristics:
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1. A specific measurement (such as TOTAL) to which it applies
2. A setpoint value: a specific value that when crossed causes the setpoint to become “active”
3. A directional reference indicating whether the setpoint is active ABOVE or BELOW the setpoint value
4. The normal state (open or closed) of the associated transistor
5. The type of output (normal, latched, or pulsed) that is initiated when the setpoint is activated. In Rate and Sq Rt Modes, output can also be hysteretic.
When the Dual Relay Board is used, setpoints are assigned into groups of 3 and 2 each, and one set point in each group is assigned to a specific relay by positioning the S1 jumpers on the relay board. See Appendix F for more information.
Certain setpoints are always associated with certain RESETs. In Batch Mode, when counting down, the Setpoint 3 value is always used when an Autoreset or a RESET-A is initiated.
Table 4-2 shows which setpoints are assigned to which measure­ment in each mode:
TABLE 4-2. SETPOINT ASSIGNMENTS FOR EACH MODE
MODE
SETPOINT RATE SQ RT BATCH
4
Basic Concepts
1 TOTAL TOTAL BATCH Count 2 TOTAL TOTAL BATCH Count 3 RATE RATE BATCH Count 4 RATE RATE BAT NO or TOTAL 5 TIME TIME TIME
For example, if you are in Rate Mode, you can use Setpoints 1 and 2 to trigger appropriate responses based on the TOTAL reading.
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4
Basic
Concepts
4.9.2 CONFIGURING SETPOINTS
All setpoint assignments except for the setpoint value are configured with parameters CNFG 1 through CNFG 3 (see Section 5). They are set to specific values through the SETPTS button on the front panel.
To set any setpoint value from Run Mode, press the SETPTS button. The display will momentarily show STPT 1, then display the current setting. Press the /STOP button to move to any digit,
and the /DISPLAY button to set the digit. Press the SETPTS
button to store the setting and to move to the next setpoint. The meter will automatically reset and revert to Run Mode at the end of the setpoint sequence.
NOTE: Once you are in the setpoint configuration mode and you do not press any buttons within approximately 30 seconds, the meter will automatically return to the run mode.
Setpoints 1 through 4 have corresponding LEDs that light when they are accessed or activated in Run Mode.
4.10 RESETS AND STOPS
Resets are actions that cause a measurement value to revert to a specific number, or a meter condition to revert to a specific state. They are often used to start a counting cycle over and to deactivate alarms. Resets can be automatic, initiated by setpoints or control devices connected to the meter through the P2 connector; or manual, initiated by the front-panel RESET button, or by an external button connected to P2-2.
4.10.1 POWER-ON (HARD) RESET
A power-on or hard reset occurs when power is restored to the meter. It loads (copies) nonvolatile memory values into operating memory and resets measurement values. The TIME display flashes showing the last time count.
4.10.2 CONFIGURATION (COLD) RESET
A cold reset loads new nonvolatile memory settings into operating memory after the meter has been configured or setpoint values have been changed. (Lockout L3C.7 must be set to 0 to enable storage of new settings in nonvolatile memory.) A cold reset resets all measurement values except TIME, and the meter reverts to Run Mode using the new settings. It is done by pressing the RESET
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button two times during configuration. It is also done automatically after the last parameter is viewed and saved in Configuration Mode.
A cold reset can also be done through serial communications. Refer to the Serial Communications Manual for additional information.
4.10.3 SETPOINT-ONLY RESET
A Setpoint-Only Reset returns the meter to Run Mode after writing new setpoint values in operating memory only. New values are prevented from being stored in nonvolatile memory by pur­posely setting Lockout L3C.7 to 1. This condition is desirable when setpoints are changed very often. Locking out nonvolatile memory storage assures that the EEPROM chip’s life isn’t short­ened by constant setpoint changes. The meter continues to use values set in this way until power is disconnected.
A Setpoint-Only Reset is done by changing setpoints with the SETPT button, then pressing the RESET button. The NOSTOR error message will appear on the display, indicating that setpoint values have not been stored in nonvolatile memory.
4.10.4 RATE AND SQ RT MODE RESETS
NOTE: Access to configuration bits (i.e. CF1.2, CF2.1, CF3.3 and CF4.1) are via the configuration menus CNFG 1, CNFG 2, CNFG 3 and CNFG 4.
4.10.4.1 RESET-A
RESET-A is activated through the P2-3 pin on the 20-socket ribbon connector at the rear of the Main Board. It can be config­ured to act either on the pulse edge (CF4.1=0) or pulse level (CF4.1=1). It does the following:
4
Basic Concepts
1. Resets the TOTAL counter to 0; the display will reflect any TOT OF (Total Offset) value.
2. Unlatches a latched alarm (output) assigned to TOTAL (when CF3.3 and CF3.4=1).
3. Terminates a pulsed alarm (output) assigned to TOTAL if the associated setpoint is not designated in the AL TI (Alarm Time) parameter. RESET-A does not terminate a pulsed alarm if the associated setpoint is assigned a pulse duration in the AL TI parameter.
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4
4.10.4.2 RESET-B
RESET-B is activated through P2-11. It does the following:
1. Makes the AVG RT (Average Rate) equal to the latest RATE measurement (starts a new AVG RT period)
2. Unlatches a latched alarm (output) assigned to RATE (Setpoints 3 and 4)
3. Resets the hysteresis action as follows:
Basic
Concepts
If active BELOW, compares reading with Setpoint 3.
If active ABOVE, compares reading with Setpoint 4.
4. Terminates a pulsed alarm (output) assigned to RATE if the associated setpoint is not designated in AL TI.
4.10.4.3 RESET-C
RESET-C is activated through P2-19. It sets the TIME to the configured SET TI (Set Time) value.
4.10.4.4 FRONT-PANEL RESET
The front-panel reset is activated by pressing the RESET button. It can be disabled by setting the CF4.7 choice to equal “1”. It initiates the actions of RESET-A, RESET-B, or RESET-C, depend­ing upon which measurement is displayed.
Table 4-3 shows the reset function for the measurement displayed in the RATE, AVERAGE RATE, TOTAL or TIME both standard and square-root modes
TABLE 4-3. FRONT-PANEL RESETS IN RATE AND
SQ RT MODES
DISPLAYED MEASUREMENT RESET FUNCTION
RATE RESET-B (but does not change AVG RT) AVG RT Replaces AVG RT with latest RATE TOTAL RESET-A TIME RESET-C
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4.10.5 BATCH MODE RESETS
4.10.5.1 RESET-A
RESET-A is activated through the P2-3 pin on the 20-socket ribbon connector at the rear of the Main Board. It can be config­ured to act either on the pulse edge (CF4.1=0) or pulse level (CF4.1=1). It does the following:
1. Resets the BATCH counter to 0 if the meter is counting up (CF1.8=0); resets to the Setpoint 3 value if the meter is count­ing down (CF1.8=1)
2. Increments BAT NO (Number of Batches) by 1.
3. Unlatches a latched alarm (output) assigned to BATCH (when CF3.3=1 and CF3.4=1) and removes a STOP condition initiated by either the front-panel /STOP button or P2-17.
4. Terminates a pulsed alarm (output) assigned to BATCH if the associated setpoint is not designated in the AL TI (Alarm Time) parameter.
RESET-A does not terminate a pulsed alarm if the associated setpoint is assigned a pulse duration in the AL TI parameter.
4.10.5.2 RESET-B
4
Basic Concepts
RESET-B is activated through P2-11. It does the following:
1. Resets the BAT NO (Number of Batches) to 0 if the meter is
2. Unlatches a latched alarm (output) assigned to BAT NO.
3. Terminates a pulsed alarm (output) assigned to BAT NO if the
4.10.5.3 RESET-C
RESET-C is activated through P2-19. It does the following:
1. Resets the TOTAL counter to 0; the display will reflect any
2. Unlatches a latched alarm (output) assigned to TOTAL.
3. Sets the TIME to the configured SET TI value (if CF4.7=0).
counting up (CF2.7=0) or to the Setpoint 4 value if the meter is counting down. (When counting down, SP 4 must be assigned to BAT NO).
associated setpoint is not designated in the AL TI (Alarm Time) parameter.
TOT OF (Total Offset) value.
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4.10.5.4 FRONT-PANEL RESET
The front-panel reset is activated by pressing the RESET button. It can be disabled by setting the CF4.7 choice to 1. It initiates the actions of RESET-B, or RESET-C, depending upon which measure­ment is displayed.
4
Basic
Concepts
Table 4-4 shows the front-panel reset functions for the BATCH mode.
TABLE 4-4. FRONT-PANEL RESETS IN BATCH MODE
DISPLAYED MEASUREMENT RESET FUNCTION
BATCH Loads B LOAD Value BAT NO RESET-B TOTAL Resets the total counter to zero TIME Resets time to SET TI value
A front-panel RESET also unlatches a possible latched alarm.
4.10.5.5 AUTORESET
Autoreset is a specific type of automatic reset. It is an internal RESET-A. It uses 0 and the Setpoint 3 value exactly like RESET-A:
Resets the BATCH counter to 0 if the meter is counting up (CF1.8=0); resets to the Setpoint 3 value if the meter is counting down (CF1.8=1).
You must set the CF2.6 choice to 1 to enable the Autoreset function.
4.10.6 STOP
The front-panel /STOP button works only in Batch Mode. If configuration choice CF4.8=1, the button is enabled; pressing it activates all setpoints, which should trigger alarms that halt or safeguard the system. After 3 seconds, pressing the /STOP button again resets all alarms and returns the meter to Run Mode.
4.11 COUNTING UP OR DOWN
Another decision you will have to make when setting up the meter is whether you want to count up or down. Generally, counting up is easier than counting down.
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For instance, you’re baking a batch of pies and you know that the pies must be in the oven for 45 minutes. You have two options: You can count up from 0, and at 45 minutes perform a reset that sets the time back to 0; or you can count down from 45, and at 0 perform a reset that sets the time back to 45.
If you are using the Rate Mode or Sq Rt Mode, counting up and down applies to the TOTAL count only. In Batch mode, counting up and down applies to all counts, BATCH, BAT NO, and TOTAL.
Note that most counting routines involve interdependent reset, setpoint, and configuration settings.
4.11.1 COUNTING UP
For TOTAL counts, the meter counts UP by using the following equation:
Display Count = (count TOT SC) + TOT OF
In order to make the count positive and go up, you must make TOT SC (the TOTAL scale factor) positive. (See Section 5.4.11.) TOT OF represents the number from which you are counting up.
4
Basic Concepts
To make BATCH count up, you must set configuration choice CF1.8 to 0. To make BAT NO count up, you must set configura­tion choice CF2.7 to 0. (See Section 5.4.2.)
The following table shows you interdependent settings for counting up from 0 to 50. The setpoint number in the third column shows which setpoint must be assigned to the associated measurement (BATCH, BAT NO, or TOTAL).
For example, Setpoint 1, 2 or 3 is assigned to the BATCH count with the setpoint at 50. When the BATCH reading goes ABOVE 50, a RESET-A resets the BATCH count to 0, increments the BAT NO by 1, and the cycle starts over. Configuration choice CF1.8 must be set to 0 to count the BATCH up.
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4
Basic
Concepts
Table 4-5. Interdependent Settings for Counting UP
ACTIVE ABOVE CONFIG-
SP OR URATION
MODE QTY SP VALUE BELOW RESET SETTINGS
Batch BATCH 1, 2 50 Above RESET-A CF1.8=0, meter
or 3 (Resets counts UP
BATCH to
0) Increments BAT NO
Batch BAT NO 4 50 Above RESET-B CF2.7=0, meter
(Resets counts UP BAT NO to
0)
Batch TOTAL 4 50 Above RESET-C TOT OF=0
(Resets TOTAL to TOT OF Value)
Rate TOTAL 1 or 50 Above RESET-A TOT OF=0 or 2 (Resets Sq Rt TOTAL to
TOT OF Value)
4.11.2 COUNTING DOWN
For TOTAL counts, the meter counts DOWN by using the same equation it uses to count up:
Display Count = (count TOT SC) + TOT OF
In order to make the count positive but go down, you must make TOT SC (the TOTAL scale factor) negative. TOT OF repre-
sents the number from which you are counting down.
To make BATCH count down, you must set configuration choice CF1.8 to equal “1”. To make BAT NO count down, you must set configuration choice CF2.7 to equal “1”.
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The following table shows you interdependent settings for counting down from 50 to 0. The setpoint number in the third column shows which setpoint must be assigned to the associated measurement (BATCH, BAT NO, or TOTAL).
In this example, Setpoint 1, 2, or 3 is assigned to the BATCH count. The setpoint is still 50, but it is not activated until the reading hits 0. At that point, a RESET-A resets the BATCH count to the Setpoint 3 value, which must be set to 50, and the cycle starts over. Configuration choice CF1.8 must be set to 1 to count the BATCH down.
Table 4-6. Interdependent Settings for Counting DOWN
ACTIVE ABOVE CONFIG-
SP OR URATION
MODE QTY SP VALUE BELOW RESET SETTINGS
Batch BATCH 1, 2 50, but Below RESET-A CF1.8=1, meter
or 3 not (Resets to counts down
active SP 3 SP 3=50 until 0 Value)
Batch BAT NO 4 50, but Below RESET-B CF1.7=1, assigns
not (Resets to SP 4 to BAT NO active SP 4 CF1.8=1, meter until 0 Value) counts down
SP 4=50
4
Basic Concepts
Batch TOTAL 4 50, but Below RESET-C CF1.7=0, assigns
not (Resets to SP 4 to TOTAL active 50 using SP 4=50 until 0 TOT OF TOT OF=50
Value)
Rate TOTAL 1 or 50, but Below RESET-A TOT OF=50 or 2 not (Resets Sq Rt active TOTAL to
until 0 50 using
TOT OF Value)
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4.12 AN EXAMPLE SHOWING SETPOINT AND RESET CONTROL
Figure 4-1 shows a setup where setpoints and resets control filling of barrels on a conveyor belt. The signal source is a flow meter with a 4-20-mA signal. The flow is directed toward two valves, a “fast” valve that delivers a large quantity of liquid quickly, and a “slow” valve that delivers a much smaller quantity slowly.
Basic
Concepts
SETPOINT 1 OUTPUT
TO RESET-A EDGE TRIGGER
4-20 mA FROM FLOW METER
FAST SLOW
SETPOINT 2 OUTPUT
TO ISOLATED ANALOG INPUT BOARD
SETPOINT 2 OUTPUT
SP 1 = 53 GALLONS SP2 = 55 GALLONS
Figure 4-1. Setup using Setpoints and Resets
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Here are the system connections and settings:
Mode: Rate
Setpoint 1: Value, 53; assigned to TOTAL, active ABOVE;
enables closing of fast valve
Setpoint 2: Value, 55: assigned to TOTAL, active ABOVE;
enables closing of slow valve and moving of conveyor belt
RESET-A: Edge-triggered by barrel position sensor; resets
TOTAL (as configured by TOT OF), enables opening of fast and slow valves and stopping of conveyor belt
TOT OF: 0; TOTAL count resets to 0
TOT SC: As required to convert display units to gallons;
the meter counts up
When the system is in action, barrels move from left to right. Just after a barrel has been completely filled, the conveyor belt moves forward and an empty barrel hits the sensor that triggers a RESET-A. This stops the conveyor belt, positioning the empty barrel beneath the flow output, and opens the fast and slow filling valves. The edge-triggered reset also deactivates Setpoints 1 and 2, and resets the TOTAL count to 0, but allows it to climb immedi­ately as the barrel is filled. When the TOTAL (the volume of the barrel) reaches 53 gallons, Setpoint 1 is activated and the fast valve closes. The slow valve continues to deliver a very low flow that can easily be shut off at exactly 55 gallons. When TOTAL reaches 55 gallons, Setpoint 2 is activated and the slow valve also closes. The conveyor belt simultaneously moves forward and the next empty barrel triggers a RESET-A, deactivating Setpoints 1 and 2, setting the TOTAL count to 0, and starting the filling process all over again.
4
Basic Concepts
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Configuring
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5. Configuring the Meter
Configuration is the process of telling the meter exactly how you would like it to operate.
The meter must be ON to configure it. When power is applied, the meter starts to function immediately in Run Mode. To access Configuration Mode, simply press the MENU button. The display will show L1 CNF (explained below), and configuration can start.
5.1 PARAMETERS, CHOICES, AND SETTINGS
Your meter always operates within certain guidelines called param­eters. When power is applied, the meter “consults” these param­eters and operates accordingly. The parameter list is accessed by repeated pressing of the MENU button. The parameters that appear on the display after the appearance of the MODE parameter depend on the MODE setting.
Each parameter has a number of possible choices. Choices are accessed by pressing the /STOP button, and set by pressing the /DISPLAY button. For example, the MODE parameter, has three choices: Rate, Sq Rt (Square Root), and Batch. If you set the MODE to Rate, the meter functions as a Rate Meter/Totalizer; if you set it Sq Rt, it functions as a Rate Meter/Totalizer/Square Root Extractor; and if you set it to Batch, it functions as a Batch Con­troller.
Settings are stored by pressing the MENU button which also brings up the next parameter on the display.
While in the Configuration Mode, pressing the RESET button once displays the previous parameter. Pressing the RESET button two times resets the meter; all changes are stored in nonvolatile memory (EEPROM), and the meter reverts to Run Mode. The meter also resets and reverts to Run Mode at the end of the param­eter sequence.
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5.2 THE BASICS OF CONFIGURATION
The following is a brief outline for configuring the meter:
1. To access any parameter, press the MENU button repeatedly until the desired parameter appears.
2. Press the /STOP button repeatedly until the desired choice appears. A flashing digit or word indicates that that choice is current and can be changed.
3. Press the /DISPLAY button repeatedly until the desired setting appears.
4. Press the /STOP button to advance to a new choice; press the MENU button to save the new settings and to advance to the next parameter. The display will show STORED when changed settings are saved.
The configuration of some parameters varies slightly from these general instructions; specific instructions for each parameter are detailed in Section 5.4.
Table 5-1 shows you the parameter list for each meter mode.
TABLE 5-1. PARAMETERS FOR EACH MODE
PARA- RATE SQ RT BATCH METER MODE MODE MODE
1 L1 CNF L1 CNF L1 CNF 2 L2 CNF L2 CNF L2 CNF 3 L3 CNF L3 CNF L3 CNF 4 MODE MODE MODE 5 CNFG 1 CNFG 1 CNFG 1 6 CNFG 2 CNFG 2 CNFG 2 7 CNFG 3 CNFG 3 CNFG 3 8 CNFG 4 CNFG 4 CNFG 4 9 AVG.CNF AVG.CNF IN.SC.OF 10 IN.SC.OF IN.SC.OF OT.SC.OF 11 OT.SC.OF OT.SC.OF BAT DP 12 RTE DP RTE DP B LOAD 13 RTE OF RTE OF BAT SC 14 RTE SC RTE SC TOT DP 15 TOT DP TOT DP TOT OF
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PARA- RATE SQ RT BATCH METER MODE MODE MODE
16 TOT OF TOT OF TOT SC 17 TOT SC TOT SC AL TI 18 AL TI AL TI BAUD 19 GATE T BAUD SER.CNF 20 BAUD SER.CNF DAT FT 21 SER.CNF DAT FT BUS FT 22 DAT FT BUS FT ADDRES 23 BUS FT ADDRES SER TI 24 ADDRES SER TI SET TI 25 SER TI SET TI CAL VZ 26 SET TI CAL VZ CAL VS 27 CAL VZ CAL VS CALmAZ 28 CAL VS CALmAZ CALmAS 29 CALmAZ CALmAS 30 CALmAS
5.3 LOCKOUTS
The first three parameters in each meter mode, L1␣ CNF, L2 CNF, and L3 CNF, are called Lockouts because their sole function is to control access to other parameters. When you initially configure your meter, all choices of each Lockout should be set to 0 (this is the factory preset value). This ensures that all meter parameters are displayed, and are therefore accessible for change during configuration. After configuration, you may want to return to the Lockouts and set certain ones to equal “1”. This locks out the corresponding parameters so that they don’t appear on the display in future programming attempts, and therefore cannot be altered.
For example, you have completely configured your meter, and it is particularly important that your settings for BAUD and SER.CNF (Serial Configuration) parameters not be altered. Using Table 5-2 as a guide, you would look for the Lockout choice controlling display of BAUD and SER.CNF. L2C.6=1 would then be pro­grammed into the meter.
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5.3.1 LOCKOUTS AND CORRESPONDING ACTIONS
Table 5-2 shows you each Lockout and the parameters or functions it controls. The factory preset for all Lockouts is 0. Factory
presets are asterisked.
TABLE 5-2. LOCKOUTS AND CORRESPONDING ACTIONS
PARA- ENABLES/ METER METER CHOICE SETTING DISABLES FUNCTION
L1 CNF L1C.1 0* Enables Display and setting of
1 Disables Setpoints 1 and 2
L1C.2 0* Enables Display and setting of
1 Disables Setpoints 3 and 4
L1C.3 0* Enables Display and setting of
1 Disables Setpoint 5 using
L1C.4 0* Enables Display and setting of
1 Disables CNFG 1 parameter
L1C.5 0* Enables Display and setting of
1 Disables CNFG 2 parameter
L1C.6 0* Enables Display and setting of
1 Disables CNFG 3 parameter
L1C.7 0* Enables Display and setting
1 Disables of CNFG 4 parameter
using the SETPTS button
using the SETPTS button
the SETPTS button
(Setpoint and display brightness configuration)
(Setpoint and line frequency configuration)
(Setpoint and input/ output configuration)
(Input/output and reset configuration)
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Table 5-2 (cont’d)
PARA- ENABLES/ METER METER CHOICE SETTING DISABLES FUNCTION
L1C.8 0* Enables Display and setting of
1 Disables AVG.CNF parameter
(Filter configuration) in Rate and Sq Rt Modes
L2 CNF L2C.1 0* Enables Display and setting of
1 Disables IN.SC.OF parameter
(Input Scale and Offset configuration)
L2C.2 0* Enables Display and setting of
1 Disables OT.SC.OF parameter
(Output Scale and Offset configuration)
L2C.3 0* Enables Display and setting of
1 Disables RTE DP, RTE OF, and
RTE SC parameters (RATE decimal point, offset, and scale configuration)
L2C.4 0* Enables Display and setting of
1 Disables TOT DP, TOT OF,
and TOT SC param­eters (TOTAL decimal point, offset, and scale configuration)
L2C.5 0* Enables Display and setting of
1 Disables AL TI parameter
(Alarm pulse time configuration)
L2C.6 0* Enables Display and setting of
1 Disables BAUD, SER.CNF,
DAT FT, BUS FT, ADDRES, and SER TI parameters (Serial communica­tions configuration)
L2C.7 0* Enables Display and setting of
1 Disables SET TI parameter
(TIME configuration)
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Table 5-2 (cont’d)
PARA- ENABLES/ METER METER CHOICE SETTING DISABLES FUNCTION
L2C.8 0* Enables Display and setting of
1 Disables GATE T parameter
(Gate Time configuration) in Rate Mode only
L3 CNF L3C.1 0* Enables Display of RATE, SQ
1 Disables RT, and BATCH
using the ▲DISPLAY button in Run Mode
L3C.2 0* Enables Display of AVG RT,
1 Disables and BAT NO using
the DISPLAY button in Run Mode
L3C.3 0* Enables Display of TOTAL
1 Disables using the ▲DISPLAY
button in Run Mode
L3C.4 0* Enables Display of TIME
1 Disables using the ▲DISPLAY
button in Run Mode
L3C.5 0* Enables Display and setting of
1 Disables MODE parameter
(Operating mode configuration)
L3C.6 0* Enables Display and setting of
1 Disables CAL VZ,CAL VS,
CALmAZ, and CALmAS parameters (Analog output configuration)
L3C.7 0* Enables EEPROM (nonvola-
1 Disables tile) storage of
changed settings
L3C.8 0* Enables the MENU button
1 Disables (Disabled only with
removal of S1-A)
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5.3.2 SETTING LOCKOUTS
The following instructions show you how to set the Lockouts.
1. Press the MENU button repeatedly until L1 CNF appears on the display. (If you are in Run Mode you will need to press the MENU button only once.)
NOTE: If L1 CNF, L2 CNF, and L3 CNF do not appear on the display, the S1-A jumper has been removed from the Main Board. If this is a first-time configuration, you must open the meter as described in Section 2.3.1 and install the jumper as described in Section 2.3.2.1. If this is not a first-time configuration, the
jumper may have been removed intentionally to ensure that certain operating parameters are not changed.
2. Press the /STOP button. The display will show either L1C.1=0 or L1C.1=1.
3. Press the /DISPLAY button one or two times to toggle the setting to equal to 0 (to enable the corresponding parameter) or 1 (to disable the corresponding parameter). Refer to Table 5-2 for the definitions of each submenu as you continue on.
4. Press the /STOP button to advance to L1C.2, then press the /DISPLAY button to set it. Advance to, and set all 8 choices in L1 CNF in turn.
5. Press the MENU button to save the settings of L1 CNF and advance to the next Lockout, L2 CNF. Set all choices as you did those of the L1 CNF, then press the MENU button to save the settings and advance to L3 CNF. Set and save all choices.
6. Press the RESET button two times to exit Configuration Mode. The meter will reset and revert to Run Mode.
For on-line production measurement and control, you may want to lock out all programming choices that won’t be changed from one run to another. Locking out all but frequently adjusted parameters will shorten the MENU parameter list considerably.
If you have locked out certain features as a security measure, there is no guarantee that a knowledgeable person won’t access the Lockouts, unlock the choices, and reconfigure the corresponding parameters. How do you remove the Lockouts completely so that settings cannot be changed at all? See the next section.
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5.3.3 REMOVING THE S1-A JUMPER FOR ADDED SECURITY
As an added measure of security after configuration and setting certain lockouts, you may also remove the S1-A jumper on the Main Board. This prevents the Lockouts themselves from appear­ing during configuration and gives you the utmost security in safeguarding settings.
Open the meter as described in Section 2.3.1 and remove the S1-A jumper as described in Section 2.3.2.1.
5.4 OTHER METER PARAMETERS
This section explains the function of all parameters following the Lockouts.
5.4.1 MODE
MODE refers to the mode in which the meter operates. There are three choices: Rate, Sq Rt, and Batch. The factory preset mode is Rate.
Press the MENU button repeatedly until the display shows MODE. Press the /STOP button. The display will show the current mode. Press the /DISPLAY button to set the desired mode, then press the MENU button to store the setting.
If you change the MODE to a new setting, the meter will automati­cally RESET and revert to RUN. To continue configuring the meter, press the MENU button 5 times to sequence past the first 4 parameters and bring up the fifth one, CNFG 1.
5.4.2 CNFG 1 THROUGH CNFG 4 (Rate, Sq Rt, Batch)
5
Configuring the Meter
CNFG 1 through CNFG 4 are configuration parameters that assign attributes to setpoints (Section 4.9.1), control the display, and configure input/output.
Press the /STOP button to advance to L1C.2, then press the
/DISPLAY button to set it. Continue on by pressing the
/STOP button and the /DISPLAY button until all 8 submenus of L1 CNF have been set. Press the MENU button to save your selections and the display will show L2 CNF. You may now proceed to set all of the parameters in this menu just as you did in L1 CNF. L3 CNF and L4 CNF are configured the same way.
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Table 5-3 shows configuration parameters CNFG 1 through CNFG 4. Factory preset values are asterisked.
TABLE 5-3. CONFIGURATION PARAMETERS CNFG 1
THROUGH CNFG 4
RESULTING ACTION
RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE CNFG 1 CF1.1 0* SP 1 output is normally SP 1 output is
CLOSED; SP 1 is assigned normally CLOSED; to TOTAL SP 1 is assigned to
BATCH count
1 SP 1 output is normally SP 1 output is
OPEN; SP 1 is assigned normally OPEN; to TOTAL SP 1 is assigned to
BATCH count
CF1.2 0* SP 2 output is normally SP 2 is normally
CLOSED; SP 2 is assigned CLOSED; SP 2 is to TOTAL assigned to
BATCH count
1 SP 2 output is normally SP 2 output is
OPEN; SP 2 is assigned normally OPEN; to TOTAL SP 2 is assigned to
BATCH count
CF1.3 0* SP 3 output is normally SP 3 output is
CLOSED; SP 3 is assigned normally CLOSED; to RATE if CF1.7=0; SP 3 is assigned to SP 3 used for AVG RT if BATCH count CF1.7=1
1 SP 3 is normally OPEN; SP 3 is normally
SP3 is assigned to RATE OPEN; SP 3 is if CF1.7=0; SP 3 used for assigned to AVG RT if CF1.7=1 BATCH count
CF1.4 0* SP 4 is normally CLOSED; SP 4 is normally
SP 4 is assigned to RATE CLOSED; SP 4 is if CF1.8=0; SP 4 used for assigned to TOTAL AVG RT if CF1.8=1 if CF1.7=0; for
BAT NO if CF1.7=1
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CF1.4 1 SP 4 is normally OPEN; SP 4 is normally
SP4 is assigned to RATE OPEN; SP 4 is if CF1.8=0; SP 4 used for assigned to TOTAL AVG RT if CF1.8=1 if CF1.7=0; for
BAT NO if CF1.7=1
CF1.5 0* SP 5 is normally CLOSED; SP 5 is assigned
to TIME
1 SP 5 is normally OPEN; SP 5 is assigned
to TIME
CF1.6 0* Meter display is bright
1 Meter display is dimmed 50%
CF1.7 0* SP 3 is assigned to RATE SP 4 is assigned to
TOTAL
1 SP 3 is assigned to SP 4 is assigned to
AVG RT BAT NO
CF1.8 0* SP 4 is assigned to RATE BATCH counts up
1 SP 4 is assigned to BATCH counts
AVGRT down
CNFG 2 CF2.1 0* SP 1 output is active ABOVE SP 1 value
5
Configuring the Meter
1 SP 1 output is active BELOW SP 1 value
CF2.2 0* SP 2 output is active ABOVE SP 2 value
1 SP 2 output is active BELOW SP 2 value
CF2.3 0* SP 3 output is active ABOVE SP 3 value
1 SP 3 output is active BELOW SP 3 value
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CF2.4 0* SP 4 output is active ABOVE SP 4 value
1 SP 4 output is active BELOW SP 4 value
CF2.5 0* SP 5 output is active ABOVE SP 5 value
5
Configuring
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1 SP 5 output is active BELOW SP 5 value
CF2.6 0* SP 3 action is not delayed RESET action is
normal (manual by the front-panel RESET button or external P2-2 reset)
1 SP 3 action is delayed for At SP 3 value,
4 alarm readings meter
Autoresets to 0; or at 0, meter Autoresets to SP3 value
CF2.7 0* SP 4 action is not delayed BAT NO counts up
1 SP 4 action is delayed for BAT NO counts
4 alarm readings down from SP 4
value if CF1.7=1
CF2.8 0 Meter is set for 60 Hz power
(See 1 Meter is set for 50 Hz power Appendix J for factory setting)
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CNFG 3 CF3.1 0 Analog output = disabled
(Analog Output) 1* RATE is sent BATCH count is
sent
2 AVG RT is sent BAT NO is sent
3 TOTAL is sent
4 Output is ramped (See Appendix K for Ramp
Specs)
CF3.2 0 BCD output = disabled (BCD Output) 1* RATE is sent BATCH count is
sent
2 AVG RT is sent BAT NO is sent
3 TOTAL is sent
4 TIME is sent
CF3.3 0* SP 1 output is normal (unlatched) (SP 1)
1 SP 1 output is latched
2 SP 1 output is pulsed with 70 to 140 ms
duration unless SP 1 is the designated setpoint in the AL TI parameter, in which case pulse duration is set by AL TI
5
Configuring the Meter
CF3.4 0* SP 2 output is normal (unlatched) (SP 2)
1 SP 2 output is latched
2 SP 2 output is pulsed with 70 to 140 ms
duration unless SP 2 is the designated setpoint in the AL TI parameter, in which case pulse duration is set by AL TI
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CF3.5 0* SP 3 output is normal (unlatched) (SP 3)
1 SP 3 output is latched
2 SP 3 output is pulsed with 70 to 140 ms
duration unless SP 3 is the designated setpoint in the AL TI parameter, in which case pulse duration is set by AL TI
3 Setpoints 3 and 4 act as low and high thresh-
olds, respectively, for SP 4 hysteretic action (CF3.6=3)
CF3.6 0* SP 4 output is normal (unlatched) (SP 4)
1 SP 4 output is latched
2 SP 4 output is pulsed with 70 to 140 ms duration
unless SP 4 is the designated setpoint in the AL TI parameter, in which case pulse duration is set by AL TI
3 SP 4 output is hysteretic
CF3.7 0* SP 5 output is normal (unlatched) (SP 5)
1 SP 5 output is latched
2 SP 5 output is pulsed with 70 to 140 ms duration
unless SP 5 is the designated setpoint in the AL TI parameter, in which case pulse duration is set by AL TI
CF3.8 0* No input rate cutoff; all positive and negative
rates are counted
1 0 input rate cutoff; only positive input rates
are counted
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
2 100 Hz 5% of display
input rate full scale cutoff; only cutoff; only input rates input rates >100 Hz reading ≥5% are of display full counted scale are
counted
5
3 300 Hz 10% of
input rate display full cutoff; only scale cutoff; input rates only input >300 Hz rates reading are 10% of counted display full
scale are counted
CF3.9 0 Meter waits up to 11 s for
final pulse before computing RATE
1* Meter waits up to 2 s for
final pulse before computing RATE
2 Meter waits up to 0.5 s for
final pulse before computing RATE
3 Meter waits up to 0.15 s for
final pulse before computing RATE
Configuring the Meter
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CNFG 4 CF4.1 0* External RESET A (P2-3) triggered on pulse edge
1 External RESET A (P2-3) triggered on pulse level
CF4.2 0 Calibrated Analog Output = Voltage
5
Configuring
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1* Calibrated Analog Output = Current
CF4.3 0* Display HOLD (P2-16) = disabled
1 Display HOLD (P2-16) = enabled
CF4.4 0* Print Request (P2-16) = disabled
1 Print Request (P2-16) via V01
communications = enabled (Appendix G)
CF4.5 0* 10-ms output pulse on Pulse output on
P2-15 at the end of each P2-15 is low when RATE measurement input rate is cut off,
high if rate is not cut off
1
CF4.6 0* BCD binary address decimal point is right
1 BCD binary address decimal point is left
Output pulse on P2-15 is low for 100 ± 40 ms: repeat rate is configured by SER TI (Serial Time)
justified (See Appendix E)
justified (See Appendix E)
CF4.7 0* Front-panel RESET = enabled
1 Front-panel RESET = disabled
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RESULTING ACTION RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
CF4.8 0* Automatic Scale and Front-panel
Offset = disabled STOP =disabled (See below)
1 Automatic Scale and Front-panel
Offset = enabled. (Sets STOP =enabled the scale factors of IN.SC.OF and RTE SC to 1.00000, and the offset factors of IN.SC.OF and RTE OF to 0.00000
5.4.3 AVG.CNF (Rate, Sq Rt)
AVG.CNF (Running Average Configuration) selects the type and amount of average rate filtering for Rate and Sq Rt Modes. Follow the steps 1 through 4 in Section 5.2 to configure this parameter.
5
Configuring the Meter
There are 5 choices. The first four, AVG.1 through AVG.4, set the number of values averaged into AVG RT.
Table 5-4 shows you the settings of the first 4 choices. Factory preset settings are asterisked and correspond to 256 total values in the average.
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TABLE 5-4. AVG RT VALUES
TOTAL CHOICE VALUES IN AVERAGE AVG.1 AVG.2 AVG.3 AVG.4
10000 21000 40100 81100 16 0 0 1 0 32 1 0 1 0 64 0 1 1 0 128 1 1 1 0 256 0* 0* 0* 1* 512 1 0 0 1 1024 0 1 0 1 2048 1 1 0 1 4096 0 0 1 1 8192 1 0 1 1 16384 0 1 1 1 32768 1 1 1 1
The fifth choice, AVG.5, selects the filter type, adaptive or fixed. AVG.5=0 selects the ABC* (Adaptive Bandwidth Control) filter which keeps track of the signal history and detects systematic changes. When changes occur, it repeatedly reduces the number of values in the average. When the input rate is changing slowly, ABC repeatedly extends the number of readings averaged, so that excellent noise reduction is obtained.
AVG.5=1 selects the fixed-number-average filter, similar to the time constant of an analog first-order filter. Although much slower than the ABC filter, this fixed filter does give the familiar single­exponential response to step and ramp input changes. The AVG.5 factory preset value is 0.
5.4.4 IN.SC.OF (Rate, Sq Rt, Batch)
IN.SC.OF (Input Scale and Offset) is used to calibrate analog input, using the calibration data on the back of the Isolated Analog Input Board. (The Isolated Pulse Input Board may be used in a situation where it also requires calibration, but this is rare.)
* Patent applied for.
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IN.SC.OF can also be used to calibrate both the Isolated Analog Input Board and the incoming signal.
See Appendix C for more information and calibration instructions.
5.4.5 OT.SC.OF (Rate, Sq Rt, Batch)
OT.SC.OF (Output Scale and Offset) converts the meter reading to the desired analog output signal. It takes two data points–each based on an actual display reading–and uses them to produce the corresponding analog output values. Analog output can be either direct acting or reverse acting.
5
Internally, the meter takes the two data points and calculates the scale (the slope of the line defined by the two points) and the offset (the output when the display reading is 0). Then it auto­matically converts display readings according to the calculated values using the following equation:
Output = (Display reading SCale) + OFfset
You must know the desired output that the display readings correspond to.
OT.SC.OF can also be used to set the slope of an analog output ramping function. (See Appendix K.)
Use Table 5-5 to configure OT.SC.OF. Read from left to right starting with the Press command. The first line reads, “Press the MENU button repeatedly until the display reads OT.SC.OF.”
TABLE 5-5. OT.SC.OF CONFIGURATION
UNTIL THE THE DISPLAY DISPLAY
STEP PRESS: SHOWS: SHOWS: COMMENTS
Configuring the Meter
1 MENU OT.SC.OF You are now ready to
repeatedly configure OT.SC.OF
2 /STOP READ 1
continued next page
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Table 5-5 (cont’d)
UNTIL THE THE DISPLAY DISPLAY
STEP PRESS: SHOWS: SHOWS: COMMENTS
3 /STOP 000000. Now enter the display reading of the
“low” output signal: Press the /DISPLAY button repeat­edly to set the flashing digit; press the
/STOP button to move to new digits
5
Configuring
the Meter
4 MENU OUTPT 1
would like the READ 1 to correspond to: Press the /DISPLAY button repeat edly to set the flashing digit; press the
/STOP button to move to new digits When you press the MENU button next, the first data point will be saved
the “high” output signal: Press the /DISPLAY button repeat edly to set the flashing digit; press the
/STOP button to move to new digits
you would like the READ 2 to correspond to: Press the /DISPLAY button repeat edly to set the flashing digit; press the
/STOP button to move to new digits When you press the MENU button next, the first data point will be saved
5 /STOP 000000. Enter the output value that you
6 MENU READ 2
7 /STOP 000000. Enter the display reading of
8 MENU OUTPT 2
9 /STOP 000000. Enter the output value that
10 MENU RTE DP You have successfully
calculated OT.SC.OF
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NOTE: If you receive an error message just after pressing the MENU button for the last time, note the message and see Appendix H.
Factory preset settings pertain to current output and are as follows:
READ 1 = 0 OUT 1 = 4 mA READ 2 = 10000 OUT 2 = 20 mA
5.4.6 RTE DP (Rate, Sq Rt)
RTE DP (Rate Decimal Point) is used to select the resolution of the RATE display. The factory preset value is RRRRRR.
Press the MENU button repeatedly until the display reads RTE DP. Press the /STOP button to display the current decimal point position. The display will show RRRRRR and the decimal point will flash. Change the position of the decimal point by pressing the /DISPLAY button repeatedly, then press the MENU button to store the desired position.
The settings for this parameter are interdependent with settings for setpoints and those for offsets (IN.SC.OF and RTE OF).
If you receive an ERR 02 message, the placement of your decimal point has left insufficient display places to accommodate one of the setpoints. The meter sets that setpoint to the maximum value possible with the restrictive decimal point position and continues.
If you receive an ERR O1 message, the placement of the decimal point has left insufficient display places to accommodate a pro­grammed offset value. The meter cannot continue. You must choose a decimal point setting that allows display of all offset digits.
5.4.7 RTE OF (Rate, Sq Rt)
5
Configuring the Meter
RTE OF (Rate Offset) allows you to directly enter a known RATE offset. It does not affect TOTAL readings in any way. The factory preset is 0.
Please note that RTE OF is entered in display units, the units of measure corresponding to the RATE display reading. Factory preset display units are Hertz (Hz), pulses per second.
Press the MENU button repeatedly until the display shows RTE OF.
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Press the /STOP button; the display will show the current offset;
the first digit will flash. Press the /DISPLAY button to set the flashing digit, and advance to the next one by pressing the /STOP button. When the desired number has been entered, press the MENU button. The meter will store RTE OF and advance to the next parameter.
The setting for this parameter is interdependent with that for RTE DP.
5.4.8 RTE SC (Rate, Sq Rt)
5
Configuring
the Meter
RTE SC (RATE Scale) allows you to directly enter a known RATE scale. It is used to convert input units to other display units. It does not affect TOTAL readings in any way. The factory preset operator is MULTIP and the factory preset value is 000001.
Press the MENU button repeatedly until the display reads RTE SC. Press the /STOP button; the display will flash the current scale, either DIVIDE or MULTIP. Press the /DISPLAY button to toggle the display to the correct operator, then press the
/STOP button. The display will show the current scale factor in 6 digits. Set each digit by repeated pressing of the ▲/DISPLAY button, and move to new digits and the decimal point by pressing the /STOP button. (You may move the decimal point to any position here; it is not interdependent with other parameter settings.)
Press the MENU button to store RTE SC and advance to the next parameter
5.4.9 TOT DP (Rate, Sq Rt, Batch)
TOT DP (Total Decimal Point) allows you to select the resolution of the TOTAL display. The factory preset is TTTTTT.
Press the MENU button repeatedly until the display reads TOT DP, then press the /STOP button. The display will show TTTTTT and the current decimal point will flash. Change the position of the decimal point by pressing the /DISPLAY button repeatedly, then press the MENU button to store the desired position.
The setting for this parameter is interdependent with that for TOT OF.
If you receive an ERR 02 message, the placement of your decimal point has left insufficient display places to accommodate one of the
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setpoints. The meter adjusts the decimal point and continues after displaying an ERR O2.
If you receive an ERR O1 message, the placement of the decimal point has left insufficient display places to accommodate the pro­grammed TOT OF value. The meter cannot continue. You must choose a decimal point setting that allows display of all offset digits. Press the /STOP button, reconfigure the decimal point position, then press the MENU button to store the desired position. The meter will advance to the next parameter.
5.4.10 TOT OF (Rate, Sq Rt, Batch)
TOT OF (Total Offset) allows you to offset the displayed TOTAL value. This value is loaded onto the TOTAL display when a RESET-C is initiated in Batch Mode, or a RESET-A is initiated in Rate or Sq Rt Modes. The factory preset value is 0. The maximum allowable offset is 500.
Please note that TOT OF is entered in display units–the units of measure corresponding to the TOTAL display reading. Factory preset display units are pulses or counts.
Press the MENU button repeatedly until the display shows TOT OF. Press the /STOP button; the display will show the current offset; the first digit will flash. Press the ▲/DISPLAY button to set the flashing digit, and advance to the next one by pressing the /STOP button. When the desired number has been entered, press the MENU button. The meter will store TOT OF and advance to the next parameter.
The setting for this parameter is interdependent with that for TOT DP.
5.4.11 TOT SC (Rate, Sq Rt, Batch)
5
Configuring the Meter
TOT SC (TOTAL Scale) is used to convert TOTAL to units other than those of the input. It does not affect RATE readings in any way. The factory preset is MULTIP and the factory preset value is 000001.
Press the MENU button repeatedly until the display reads TOT SC. Press the /STOP button; the display will flash the current scale, either DIVIDE or MULTIP. Press the /DISPLAY button to toggle the display to the correct operator, then press the /STOP button. The display will show the current scale factor in 6 digits. Set each
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5
Configuring
the Meter
digit by repeated pressing the ▲/DISPLAY button, and move to new digits and the decimal point by pressing the /STOP button. (You may move the decimal point to any position here; it is not interdepen­dent with other parameter settings.)
Press the MENU button to store TOT SC and advance to the next parameter.
5.4.12 AL TI (Rate, Sq Rt, Batch)
AL TI (Alarm Time) defines the pulse duration in seconds of one (and only one) setpoint that is set to Pulsed in choices CF3.3 through CF3.7. (Any pulsed setpoint that is not the designated setpoint as defined by AL TI, defaults to a pulse duration of 70 to 140 ms.) The factory preset setpoint is 0 and the factory preset time is 00:00.
When the setpoint is set to 0, AL TI is used to ramp the analog output function. (Configuration choice CF3.1 must be set to 4.) The pulse duration becomes the ramp time–the time it takes to completely open a closed valve. (See Appendix K.)
Press the MENU button repeatedly until the display shows AL TI, then press the /STOP button. The display will show the desig­nated setpoint (which should flash) followed by an equal sign and the corresponding pulse duration. Press the /DISPLAY button repeatedly to set the setpoint, then press the /STOP button and the /DISPLAY button to advance to, and set, the digits of the pulse duration. Pulse duration cannot exceed 99.99 s. Press the MENU button to store AL TI and advance to the next parameter.
5.4.13 GATE T (Rate)
GATE T (Gate Time) refers to the length of time in which the meter accepts input pulses for a single rate calculation. The longer GATE T, the better the resolution. (GATE T, is not used for the rate calculation; a similar, but much more accurate method called Measurement Time is used.)
There are 5 choices: (approximately) 0.03 s, 0.10 s, 0.30 s, 1.00 s, and 3.00s. The factory preset value is 0.30 s.
Press the MENU button repeatedly until the display reads GATE T. Press the /STOP button. The display will flash the current setting. Press / DISPLAY repeatedly to sequence through the possible choices, then press the MENU button to store the desired GATE T and advance to the next parameter.
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5.4.14 BAUD, SER.CNF, DAT FT, BUS FT, ADDRES, SER TI (Rate, Sq Rt, Batch)
BAUD, SER.CNF, DAT FT, BUS FT, ADDRES, and SER TI are parameters that configure RS-232 and RS-485 board communications. BAUD (RS-232, RS-485)
BAUD refers to the data transfer rate through the communications channel linking two or more devices. There are seven choices:
300, 600, 1200, 2400, 4800, 9600, and 19,200
The factory preset is 9600.
Press the MENU button until the display shows BAUD, then press
the /STOP button. The display will flash the current baud rate. Press the /DISPLAY button repeatedly to sequence through the seven possible rates, then press the MENU button to store the desired rate and advance to the next parameter.
SER.CNF (RS-232, RS-485)
SER.CNF (Serial Configuration) sets the serial communications format. Table 5-6 shows SER.CNF settings; factory preset values are asterisked.
TABLE 5-6. SERIAL COMMUNICATIONS CONFIGURATION
AS SET BY SER.CNF
PARAM. CHOICE SETTING RESULTING ACTION
SER.CNF SER.1 0 No parity
1* Sets the parity bit to ODD
2 Sets the parity bit to EVEN
SER.2 0* Sets the stop bit to one
1 Sets the stop bit to two
SER.3 0 Sends longs messages in several pieces
1* Sends long messages in a single piece
5
Configuring the Meter
Press the MENU button until the display shows SER.CNF, then press the /STOP button. The display will flash the current setting for SER.1. Press the /DISPLAY button repeatedly to sequence through and choose one of three possible settings, then press the /STOP button to advance to the next choice. Set SER.2 and SER.3 similarly. Press the MENU button to store the settings and advance to the next parameter.
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5
Configuring
the Meter
DAT FT (RS-232, RS-485)
DAT FT (Data Format) controls the message response to Point-to­Point Continuous Transmission and V01 commands. It determines whether or not certain characters or values are sent along with the basic message. Factory preset values are asterisked.
TABLE 5-7. MESSAGE RESPONSE AS SET BY DAT FT
RESULTING ACTION
DISABLES RATE SQ. RT BATCH
PARAM CHOICE SET’G /ENABLES MODE MODE MODE
DAT FT DAT.1 0 Disables Addition of alarm status character to
1* Enables the message
DAT.2 0 Disables Addition of Addition of
1* Enables RATE value BATCH count
to the message to the message
DAT.3 0 Disables Addition of Addition of
1* Enables AVG RT value BAT NO
to the message to the message
DAT.4 0 Disables Addition of TOTAL value to the
1* Enables message
DAT.5 0 Disables Addition of TIME to the message
1* Enables
DAT.6 0 Disables Addition of Addition of
1* Enables RATE unit BATCH count
of measurement unit of
measurement
DAT.7 0 Disables Addition of Addition of
1* Enables AVG RT unit BAT NO unit
of measurement of measurement
DAT.8 0 Disables Addition of TOTAL unit of
1* Enables measurement
Press the MENU button until the display shows DAT FT, then press the
/STOP button. The display will flash the current setting for DAT.1. Press the /DISPLAY button one or two times to set the choice to 0 or 1, then press the /STOP button to advance to the next choice. Set choices DAT.2 through DAT.8 similarly. Press the MENU button to store the settings and advance to the next parameter.
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BUS FT (RS-232, RS-485)
BUS FT (Bus Format) configures the serial communications format. Table 5-8 shows BUS FT settings; factory preset values are asterisked.
TABLE 5-8. BUS CONFIGURATION AS SET BY BUS FT
RESULTING ACTION
RATE SQ RT BATCH
PARAM CHOICE SETTING MODE MODE MODE
BUS FT BUS.1 0* Does not add a check sum to the message
1 Adds a check sum to the message
BUS.2 0 Does not add a line feed <LF> to the message
1* Adds a line feed <LF> to the message
BUS.3 0* Does not add a command ECHO in front
of the message
1 Adds a command ECHO in front of the
message
BUS.4 0* Sets the meter to Point-to-Point Mode
1 Sets the meter to Multipoint Mode
BUS.5 0* Sets Point-to-Point Mode to Continuous
1 Sets Point-to-Point Mode to Command
BUS.6 0* In Point-to-Point Mode, sets RTS handshake
to Message
1 In Point-to-Point Mode, sets RTS handshake
to Character
BUS.7 0* Sets the meter for RS-232 communications
1 Sets the meter for RS-485 communications
BUS.8 0* Separator for DAT FT choices 1, 2, 3, and 4 is
the SPACE
1 Separator for DAT FT choices 1, 2, 3, and 4 is
the <CR> (Carriage Return)
5
Configuring the Meter
Press the MENU button until the display shows BUS FT, then press the
/STOP button. The display will flash the current setting for BUS.1. Press the /DISPLAY button one or two times to set the choice to 0 or 1, then press the /STOP button to advance to the next choice. Set choices BUS.2 through BUS.8 similarly. Press the MENU button to store the settings and advance to the next parameter.
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ADDRES (RS-232, RS-485)
ADDRES (Address) specifies the meter ID. It is important in RS-485 communications (when multiple meters share the same bus) that each meter have a different address. The address can be from 0 to 199.
5
Configuring
the Meter
Press the MENU button repeatedly until the display shows ADDRES, then press the /STOP button. The meter will show the current address. Press the /DISPLAY button repeatedly to set each digit, and the /STOP button to advance to the next digit. Press the MENU button to store the desired address and advance to the next parameter.
SER TI (RS-232, RS-485)
SER TI (Serial Time) specifies the interval of time in seconds between consecutive transmissions in Point-to Point or Continuous Mode. The SER TI value can be from 1 to 59999 s. A zero setting sends transmissions as fast as possible. The factory preset value is 1 s.
Press the MENU button repeatedly until the display shows SER TI, then press the /STOP button. The display will show the current SER TI value with the first digit flashing. Set each digit by repeated pressing of the /DISPLAY button and advance to the next digit by pressing the /STOP button. Press the MENU button to store the desired SET TI and advance to the next parameter.
5.4.15 SET TI (Rate, Sq Rt, Batch)
SET TI is the time in HH:MM:SS format that is loaded on the TIME display when the front-panel RESET button is pressed.
The clock can run on two cycles, a 24-hour cycle and a 99-hour cycle. If you set HH less than 24, it runs on the 24-hour cycle. If you set HH greater than 24 and less than or equal to 99, the clock runs on the 99-hour cycle. The factory preset value is 12:00:00; the clock will run on the 24-hour cycle.
Press the MENU button until the display shows SET TI, then press
the /STOP button. The display will show the current setting with the first digit flashing. Set each digit by pressing the
/DISPLAY button repeatedly, and go on to new digits by pressing
the /STOP button. Press the MENU button to store the desired time and advance to the next parameter.
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5.4.16 BAT DP (Batch)
BAT DP (Batch Decimal Point) sets the BATCH decimal point position. The factory preset value is RRRRRR.
Press the MENU button repeatedly until the display shows BAT DP, then press the /STOP button. The display will show BBBBBB and the current decimal point will flash. Change the position of the decimal point by pressing the /DISPLAY button repeatedly, then press the MENU button to store the desired position.
If you receive an error message, press the /STOP button, reconfigure the decimal point position, then press the MENU button to store the desired position.
NOTE: The meter will show an error message, STORED then B LOAD. You will then need to press the RESET button one time to go back to BAT DP and reposition the decimal point.
5.4.17 B LOAD (Batch)
B LOAD (Batch Load) is the loading value of the BATCH count (unit count). This value is loaded onto the display when the front panel RESET button is pressed while BATCH is displayed.
It can be used to reset the BATCH count to a positive number when operation has been halted and you want to load a specific BATCH value so that the operation will pick up exactly where it left off. In this case, you would configure the B LOAD value just before resuming operation; immediately after resuming operation, a RESET-B would load the desired BATCH value on the display.
5
Configuring the Meter
The factory preset value is 0.
Press the MENU button repeatedly until the display shows B LOAD, then press the /STOP button. The display will show the current B LOAD in 6 digits with the first digit flashing. Press the /DISPLAY button repeatedly to set each digit, then press the
/STOP button to advance to next digit. Press the MENU button to store the desired B LOAD and advance to the next parameter.
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5.4.18 BAT SC (Batch)
BAT SC (Batch Scale) is the BATCH scale factor. The factory preset is MULTIP and the factory preset value is 000001.
5
Configuring
the Meter
Press the MENU button repeatedly until the display shows BAT SC, then press the /STOP button; the display will flash the current scale, either DIVIDE or MULTIP. Press the /DISPLAY button to toggle the display to the correct scale, then press the /STOP button. The display will show the current scale factor in 6 digits. Set each digit by repeated pressing of the
/DISPLAY button, and advance to new digits by pressing the
/STOP button. Press the MENU button to store BAT SC and advance to the next parameter.
5.4.19 CAL VZ, CAL VS, CALmAZ, CALmAS
CAL VZ (Calibrate Voltage Zero), CAL VS (Calibrate Voltage Span), CALmAZ (Calibrate milliamp Zero), CALmAS (Calibrate milliamp Span) are parameters that are used to calibrate the Isolated Analog Output board.
See Appendix D for more information and calibration instruc­tions.
5.5 STEP-BY-STEP PROGRAMMING EXAMPLE 1: RATE MODE; SHAFT RPM FROM A GEAR-TOOTH DETECTOR
Figure 5-1 shows the Basic Meter receiving TTL or CMOS pulses from a detector measuring the teeth on a gear.
15-30 V EXCITATION
POWER
1
DETECTOR
ELECTRONICS
Figure 5-1. Basic Meter Connection to a Gear Detector
82
SIG IN
SIG
RETURN
P3
2
3
METER
Page 98
5.5.1 DETERMINING THE RATE SCALE (RTE SC)
TOTAL is not used in a shaft-speed application, no digital commu­nications are used, and the example has no Analog Output. Therefore, many associated parameters will not be used.
The first step in this application is to decide what units you want the meter to display. Let’s say that you want the meter to display revolutions per minute.
Rotation of the shaft produces X revolutions per minute (RPM) times N gear teeth to produce RPM*N pulses per minute. The meter’s factory preset RATE units are Hertz (Hz), pulses per second. There­fore, the display would show RPM*N/60. To get a reading in RPM:
RTE SC = 60/N
If N = 12 (12 teeth on the gear),
RTE SC = 60/12 = 5.00000
5.5.2 CONFIGURING THE METER
This section shows you how to configure the meter for the first example. There are only a limited number of parameters that need to be changed from factory preset values, but all parameters that affect RATE up to RTE SC will be covered in case the correspond­ing preset values have been changed through experimentation or previous configuration.
5
Configuring the Meter
1. Set all Lockouts to 0 (Section 5.3.2). All possible parameters will be displayed in sequence when you repeatedly press the MENU button.
2. Set the MODE to Rate (Section 5.4.1). The meter will reset and revert to Run Mode when you press the MENU button to store the selected MODE.
3. Press the MENU button five times to advance past MODE to CNFG 1. Set all CNFG parameters equal to 0 (Section 5.4.2).
4. Make sure IN.SC.OF is programmed to set the scale to 1 and the offset to 0 (Appendix C). Input the following values:
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INPUT 1 = 0 READ 1 = 0 INPUT 2 = 100000 READ 2 = 100000
5. Set RTE DP to RRRRR.R (Section 5.4.6). This gives 0.1 RPM resolution.
Ignore any ERR 02 message. This indicates a setpoint overflow that can easily be corrected when or if you set setpoints later.
5
Configuring
the Meter
6. Set RTE OF equal to 0 (Section 5.4.7).
7. Set RTE SC to MULTIP and a scale of 5 as calculated above (Section 5.4.8).
This concludes RATE programming. All other parameters (for TOTALs, Alarm Time, Gate Time, Serial Communications, etc.) have no effect on RATE measurements.
See Section 4.9.2 and Section 5.4.2 to program setpoints.
See Section 5.6 for adding TOTALs to a different example.
If you want the clock to run in the background, set SET TI (Sec­tion 5.4.15). To start TIME, press the /DISPLAY button until you see TIME and the reading in HH:MM:SS is displayed, then press the RESET button.
After all parameters have been set to required values, you may want to set the corresponding Lockouts equal to 1 so that your settings cannot be changed.
Assuming the meter has been connected to the flowmeter and is operating correctly in Rate Mode, it will display the RATE in GPM when the /DISPLAY button is pressed.
If the shaft in this example drove a mill roller, conveyor belt, vehicle wheel or other rotary-to-linear device, TOTAL could be used to measure distance or amount of product passed.
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5.6 STEP-BY-STEP PROGRAMMING EXAMPLE 2: LINEAR FLOW; ADDING TOTAL TO RATE WITH EXCITATION FROM THE BASIC METER
In this example, the pulse source is a 100-pulse-per-gallon linear flowmeter (i.e., a turbine meter) which is powered by the unregu­lated 16 V excitation from the Basic Meter. See Figure 5-2.
TURBINE
5
FLOW
EXCITATION
MAG
PICKUP
Figure 5-2. Basic Meter Connection to a Shaft Position Detector
To demonstrate the meter’s scale and offset capability, set the RATE display to GPM (gallons per minute), but the TOTAL to Cubic Feet. This can be done because the decimal point location, scale factor and offset settings for RATE are completely indepen­dent of those for TOTAL.
An external signal (e.g., a limit switch closure or timing pulse) is connected to P2-3 (RESET-A) and is used to reset the TOTAL.
5.6.1 DETERMINING THE RATE DECIMAL POINT (RTE DP) AND RATE SCALE (RTE SC)
SENSOR
AMP
SIG IN
SIG RETURN
1
2
3
P3
METER
Configuring the Meter
Once again the pulse source does not have an offset, so the only RATE parameters to be set are the decimal point (RTE DP) and scale factor (RTE SC).
Selecting the RTE DP position as RRRR.RR gives a possible full scale reading of 9999.99 GPM, or (dividing by 60) 166.67 gal/s. With 100 pulses per gallon, the maximum pulse rate would be
16.67 kHz.
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