What this Guide Covers ....................................................................................................................................................... 6
WW
Who Should Use This Guide ................................................................................................................................................ 6
Related Documentation ........................................................................................................................................................ 7
Conventions Used in This Manual ....................................................................................................................................... 7
General Description.............................................................................................................................................................. 9
Meter Input Modes .......................................................................................................................................................... 9
Module Features ............................................................................................................................................................ 10
Compliance with Safety Standards..................................................................................................................................... 14
UL and CUL Safety Standards ...................................................................................................................................... 14
Low Voltage Directive ................................................................................................................................................... 15
Power Requirements........................................................................................................................................................... 15
Selecting a Location ...................................................................................................................................................... 16
Protecting Circuit Boards from Contamination............................................................................................................. 16
Installing the Terminal Block ........................................................................................................................................ 17
Inserting the Module in the PLC Rack .......................................................................................................................... 18
Removing the Module ................................................................................................................................................... 18
Field Wiring........................................................................................................................................................................ 18
Removing and Replacing the Terminal Block............................................................................................................... 19
Wiring the Terminal Block ............................................................................................................................................ 19
Wiring the Module for Inputs ........................................................................................................................................ 21
Setting Up the Configuration Software .............................................................................................................................. 25
Setting Up ModSoft....................................................................................................................................................... 25
Setting Zoom Registers Using ModSoft....................................................................................................................... 26
Setting Up Concept........................................................................................................................................................ 26
Setting Zoom Registers Using Concept ........................................................................................................................ 27
Setting Up SCIOCFG Software..................................................................................................................................... 28
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Making Bit Settings for Zoom Registers............................................................................................................................ 28
30 kHz Filter, Bit 12...................................................................................................................................................... 30
15 kHz Filter, Bit 11...................................................................................................................................................... 30
Count Size, Bit 10.......................................................................................................................................................... 31
Rate Scale, Bit 9 ............................................................................................................................................................ 31
Bits 8 through 1 - Not Used.......................................................................................................................................... 31
Making Bit Settings for 4X Registers................................................................................................................................. 31
Bank/Data Format Select: Bits 15-16............................................................................................................................ 32
Data Delivery Mode Select: Bit 14................................................................................................................................ 33
Multiplexing Control: Bit 13 ......................................................................................................................................... 33
Not Used - Bit 9............................................................................................................................................................. 34
Channel Number for scale/limit word: Bits 6-8 ............................................................................................................ 34
Not Used : Bits 4-5 ........................................................................................................................................................ 34
Disable Scaling : Bit 3 ................................................................................................................................................... 34
Program EEPROM : Bit 2 ............................................................................................................................................. 34
Enable Scale/Limit Word: Bit 1..................................................................................................................................... 34
Layout for 4X+1 Register................................................................................................................................................... 34
Layout for 4X+2 and 4X+9 Registers ................................................................................................................................ 36
Counter Enable, Bit 16 .................................................................................................................................................. 36
Preset, Bit 15 ................................................................................................................................................................. 36
Reset Counter, Bit 14..................................................................................................................................................... 36
Gate Enable, Bit 13........................................................................................................................................................ 37
Count Direction, Bit 12 ................................................................................................................................................. 37
Reset Flags, Bit 11......................................................................................................................................................... 37
Stop on Zero, Bit 10 ...................................................................................................................................................... 38
Stop on Limit, Bit 9 ....................................................................................................................................................... 38
Rate Mode, Bit 8........................................................................................................................................................... 38
Roll over to, Bit 7 .......................................................................................................................................................... 38
Roll under to, Bit 6 ........................................................................................................................................................ 38
Bit Settings for 3X Registers .............................................................................................................................................. 41
Enable Start/Stop Echo: Bit 16...................................................................................................................................... 42
Counter Preset Flag: Bit 15 ........................................................................................................................................... 42
Gate Enable Echo: Bit 14 .............................................................................................................................................. 42
Counter Invert Echo: Bit 13........................................................................................................................................... 42
Counter Input State: Bit 12............................................................................................................................................ 42
Quadrature Direction State: Bit 11 ................................................................................................................................ 43
Count Size Selection Echo: Bit 10 ................................................................................................................................ 43
Counter Max Flag: Bit 9:............................................................................................................................................... 43
Counter Limit Flag: Bit 8 .............................................................................................................................................. 43
Counter Zero Flag: Bit 7................................................................................................................................................ 43
Over Rate Flag: Bit 6 ..................................................................................................................................................... 43
Rate Limit: Bit 5 ........................................................................................................................................................... 44
Rate Zero Flag: Bit 4 ..................................................................................................................................................... 44
4
Counter / Flow Meter Input Module
K & M Factor Set Flag: Bit 3 ........................................................................................................................................ 44
R Factor Set Flag: Bit 2 ................................................................................................................................................. 44
Configuration Error Flag: Bit 1 ..................................................................................................................................... 44
General Programming Examples........................................................................................................................................ 50
Example 1: Loading Scaling Factors............................................................................................................................ 50
Sample Configuration Simple Bi-Directional Ring Counter: ....................................................................................... 56
Sample Configuration Using the Meter Proving Inputs ................................................................................................ 57
Standing Clear of the Equipment ....................................................................................................................................... 60
Program Alteration ............................................................................................................................................................. 60
Health Status Test (ModSoft) ............................................................................................................................................. 62
Health Status Test (Concept) .............................................................................................................................................. 63
Register Operation Test ...................................................................................................................................................... 63
Ready LED Does Not Illuminate .................................................................................................................................. 63
Active LED Does Not Illuminate .................................................................................................................................. 64
Fault LED Does Not Illuminate..................................................................................................................................... 64
Fault LED Blinking Red................................................................................................................................................ 64
Module Not Recognized by Rack (ModSoft) ............................................................................................................... 65
Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics:
• What this guide covers
• Who should use this guide
• Contents of the guide
• Related publications
• Conventions used in this guide
What this Guide Covers
This guide describes the hardware and firmware included in the 4- and 8-channel Quantum™ Counter/Flow
Meter modules for the Schneider Automation Series Quantum PLC. The document contains the information
required to install and wire, configure, use, and troubleshoot the modules.
Who Should Use This Guide
Use this guide if you install, configure, or maintain a control system that uses the module with a PLC. You
should have a basic understanding of Quantum products. Additionally, you should understand electronic
process control and the ladder program instructions required to generate the electronic control signals for the
PLC. If you do not have these prerequisites, contact your local Schneider Alliance representative for the
proper training before using this product.
Manual Contents
The table below lists the contents of this guide.
Table 1 Contents of this Guide
ChapterDescription
Chapter 1An overview of the module
Chapter 2Installation and wiring guidelines
Chapter 3Instructions for configuring the module
Chapter 4Programming instructions
Chapter 5Information on module diagnostics and troubleshooting
Appendix ASpecifications for the module
6
Counter / Flow Meter Input Module
Related Documentation
The table below lists a number of reference documents that provide information to assist you when working
with one of the Quantum counter modules.
Table 2 Related Documents
Document TitlePublication
Modicon Modsoft Programmer User ManualSchneider Electronics, 890 USE 115 00
Modicon TSX Quantum Automation Series Hardware Reference Guide Schneider Electronics, 840 USE 100 00
Guide for the Installation of Electrical Noise Inputs to Controllers from External Sources IEEE Std. 518- 1977
Recommended Practice for Grounding of Industrial and Commercial Power SystemsIEEE Std. 142- 1982
Noise Reduction T echniques in Electronic SystemsHenry W . Ott; published by Wiley-Interscience of New Y ork, 1976
Conventions Used in This Manual
The following conventions are used throughout this manual:
• Bulleted lists (like this one) provide information, not procedural steps.
• Numbered lists provide sequential steps or hierarchical information.
• Text in Courier type face indicates words or phrases you should type.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
8
Counter / Flow Meter Input Module
1Chapter
Overview
This chapter describes the 4- or 8-channel Quantum Counter/Flow Meter input module (called Quantum
counter module in this document). It also explains how the Schneider Automation Series Quantum PLC reads
input data from a Quantum counter module.
Shipped with your module is an MS-DOS formatted floppy disk titled Quantum Runtime Files, Spectrum
Controls, Inc. The disk contains runtime files that are required to use all versions of this module. Files include
an ID file, parameter screen software, and multiplexing software examples for 4X and 3X register use.
NOTEThe module is used with a field wiring terminal block, Modicon 140 XTS 002 00 or 140
CFA040 00 40-pin cablefast. Either of these must be ordered separately.
Included in this chapter is information about:
• General description
• Hardware features
• Overview of module
• System operation
General Description
The Quantum counter module is designed for general-purpose counter and flow meter applications that require a
large number of input channels and high accuracy. It supports both AC and DC input signals from counter and
flow meter encoders (both normal and quadrature). The module conditions the inputs to standard digital levels.
It stores the converted data in its image table for retrieval by any Quantum PLC.
The module communicates with the PLC and receives its power through the PLC backplane from the +5VDC
rack power supplies. No external power supply is required.
Your Quantum counter module supports connections from any combination of counter and flow meter devices,
with different input voltage ranges. Each channel is individually configurable via software for a specific input
device and provides rate and limit detection. Count mode and input range are configured in two channel groups.
Meter Input Modes
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
The modules flow meter mode is compatible with a variable reluctance AC input, which counts AC zero crossing
signals from 50 mV to 75V AC peak.
Count input modes include uni-directional, bi-directional and quadrature. Bi-directional and quadrature inputs
require the use of two inputs, with up to four counters of this type being supported.
The module accepts +5 to +45 V gating (enable) pulses for standard meter proving applications. To
accommodate these pulses, the module uses a pulse-to-enable converter circuit that can be enabled and disabled
with software. Note that this module does not perform pulse interpolation for meter proving.
The module also has external inhibit/trigger lines using a 5V discrete pulse to regulate activity.
Module Features
The Quantum counter module features:
• Eight input channels
• Support for four quadrature encoders
• Eight external enable inputs
• Input voltage ranges: AC (50 mV to 75V peak), 5VDC, 12VDC, 24VDC
• Eight 24V gating (enable) pulses for meter proving
• Input filter frequency 50 kHz max., AC or DC
• Maximum count value 65 K or 16 M
• Programmable scaling, K, M, and R factors
• Channel update time 4 ms/channel
• Rate output
• Counter logic level state
• Programmable counter functions: start, stop, reset, preset, max limit
• Programmable counter alarm flags and zero flags in internal counter and rate operating modes
• Two software-selectable filters: 30 or 50 kHz digital, 15 kHz analog
• Channel-to-backplane isolation 1000VDC
• Channel-to-channel isolation 0 V
10
Counter / Flow Meter Input Module
Hardware Features
The Quantum counter module contains a removable Modicon 40-pin terminal block providing connections for
up to eight input devices. The illustration below shows the hardware features of the module.
For quadrature operation, the module configures channels into quadrature encoding pairs. Both channels in a
pair must be configured for quadrature mode. Quadrature encoding reports the same quadrature count value on
the output of each channel.
The module supports these input types:
• AC (50 mV to 75V peak)
• 5VDC
• 12VDC
• 24VDC
Both rate and count data are simultaneously available to the user. User selectable instantaneous or average rate
modes are supported.
For improved noise reduction, the module has a digital filter that is selectable between 50 kHz and 30 kHz. A
selectable analog 15 kHz single-pole filter is also available for low speed applications.
Module configuration is stored in the PLC memory. Normally configuration uses ModSoft, Concept, and
ProWorks programming software. Details are provided in chapter 3, Module Configuration.
Counter Mode
The counter functions of the module include programmable control of the counter, including start, stop, reset,
and preset control and user-defined flags. The module makes the state of input counter levels available to the
PLC, allowing any channel to be used as a discrete input.
Counter inputs can be configured in pairs for quadrature encoding. A total of four quadrature inputs can be
supported to detect up and down count signals. The module has an onboard timer that converts counter inputs
into a rate output. Both counter total and calculated input rate are made available to the PLC at the same time.
The maximum filter frequency for an input signal is 50 kHz.
When a counter reaches its preset limit value or counts down to zero, it sets a limit or zero flag. The counter
supports the following input K, M, R scale factors:
• “K” used for range scaling; programmable for each channel. ( Count = Raw count / K )
• “M” used for meter calibration. ( Count = raw count * M / 10,000, Rate = raw rate * M/10,000 )
• “R” used to scale the rate output. ( Rate = Raw Rate / R * M/10,000 )
In counter mode, the module updates normal encoder and quadrature outputs at <1.5 ms/channel. The counter
accumulator output is available in two ranges. The maximum count total for the noraml range is 65 K. The
extended range uses two data words per channel and counts up to 16 M.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
HardwareDescription
Door (removable)Covers the terminal block and includes an identification label for terminals.
Door labelPermits easy terminal identification.
LED indicatorsDisplay operating and fault status of module.
Details are provided in “Diagnostic LEDs”.
Side label (nameplate)Provides module identification.
Self-locking tabsSecure module in rack slot.
Terminal blockUsed for field wiring the module.
Diagnostic LEDs
The module supports the LEDs listed in table1-1 . These LEDs help you identify the source of problems that
can occur during power-up or during normal operation. Power-up and operation diagnostics are explained in
chapter 5, Maintenance and Diagnostics.
Table 1-1 Module LEDs
LED NameColorStateState Description
Ready (Module Status)GreenOnModule powered up and functioning normally .
OffModule is not powered up.
ActiveGreenOnBus communication is established between module and PLC.
OffNo bus communication.
FaultRedOnModule self-test error or fatal hardware error. LED blinks to
indicate type of self-test error .
BlinkingType of self-test error. Count the number of blinks before a
pause to determine the error code. Possible codes are listed in
the table below .
Channel Status (8 LEDs)GreenOnChannel is enabled and a valid input signal is present. The
LED indicates the state of the counter enable bit. It does not
indicate the state of an external hardware gate. See description
of the counter enable bit in chapter 3, “Module Configuration.”
Table 1-2 Channel LEDs
Code (Number of Blinks)Error Type
On SolidNo Faults
1Frequency Limit Out of Range.
2Counter Limit Out of Range.
3Counter Preset Out Of Range.
4Channel Pair Gate Enable Configuration Mismatch.
5Quadrature Pair Configuration Mismatch.
6Both Stop on 0 and Stop on Limit selected (Mutually exclusive).
7Both Roll Over to Preset and Roll Under to Preset (Mutually exclusive).
8Unrecognized parameter type.
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Counter / Flow Meter Input Module
Table 1-3 Blink Codes for Fault LED
Code (Number of Blinks)Error Type
OffNo Faults
1Dual Port RAM fault.
2FPGA init fault.
3FPGA1 program fault.
4FPGA2 program fault.
5FPGA1 fault.
6FPGA2 Fault.
7Watchdog Fault.
8ROM CRC fault.
9EEPROM fault.
10Both Speed mode and Autosequence mode selected
(Mutually exclusive)
Recommended Cables
To minimize interference from radiated electrical noise, we recommend twisted-pair and shielded cables.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Installation and Wiring
This chapter includes information about:
• Module compliance with safety standards
• Power requirements
• Installation considerations, such as prevention of electrostatic discharge
• Installing the module
• Field wiring of the module and analog input devices
2Chapter
Compliance with Safety Standards
The module is compliant with the safety standards described in this section. It is intended for use in an industrial
environment. The product has been approved for installation within the European Union and EEA regions.
UL and CUL Safety Standards
The module complies with UL and CSA safety requirements and is certified to the applicable standards, as
described in appendix A.
EMC Directive
The module has been tested to meet Council Directive 89/336/EEC Electromagnetic Compatibility (EMC) and
the following standards, in whole or in part, documented in a technical construction file:
• EN 50081-2
EMC - Generic Emission Standard, Part 2 - Industrial Environment
• EN 50082-2
EMC - Generic Immunity Standard, Part 2 - Industrial Environment
14
Counter / Flow Meter Input Module
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage, since it operates with inputs under 75
VDC and 50VAC rms. It applies the safety requirements of EN 61131-2 Programmable Controllers, Part 2
Equipment Requirements and Tests. For specific information required by EN 61131-2, see the appropriate
sections in this publication.
Power Requirements
The module receives power through the PLC backplane from the +5VDC power supply. The maximum current
drawn for the 8 channel module is 670mA and the 4 channel module is 470mA.
Installation Considerations
This section describes several considerations to keep in mind when installing the module in a PLC system. The
following documents contain information that might help you as you install and wire the module:
• National Electrical Code, published by the National Fire Protection Association, Boston, MA
• IEEE Standard 518-1977, Guide for the Installation of Electrical Equipment to Minimize Electrical
Noise Inputs to Controllers from External Sources
• IEEE Standard 142-1982, Recommended Practices for Grounding of Industrial and Commercial Power
Systems
• Noise Reduction Techniques in Electronic Systems, by Henry W. Ott; published by Wiley-Interscience,
New York, 1976
Preventing Electrostatic Discharge
CAUTION: Electrostatic discharge can damage integrated circuits or semiconductors if you
touch module bus connector pins. Substitution of components may impair suitability for Class 1, Division 2.
To prevent electrostatic discharge, follow these guidelines when you handle the module:
• Touch a grounded object to discharge static potential.
• Wear an approved wrist strap grounding device.
• Do not touch the backplane connector or connector pins.
• Do not touch circuit components inside the module.
• If available, use a static-safe work station.
• When it is not in use, keep the module in its static-shield box.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Reducing Noise
Most applications require installation in an industrial enclosure to reduce the effects of electrical interference.
Electrical noise, to which analog inputs and outputs are highly susceptible, will reduce the performance (accuracy)
of the module.
Selecting a Location
WARNINGEXPLOSION HAZARD This equipment is suitable for use in Class I, Division
2, Groups A, B, C, D or nonhazardous locations only. Substitution of components may impair suitability for
Class I, Division 2. Do not replace, connect, or disconnect components unless power has been switched off
or the area is known to be nonhazardous. This product must be installed in an enclosure. All wiring must
comply with N.E.C. article 501-4(b).
Two factors determine where to install the module in the PLC rack: ambient temperature and electrical noise.
Place the module:
• In any slot but slot 0 (reserved for the processor).
• Close to the bottom of the enclosure to take advantage of cooler air.
• Away from modules that generate significant heat, such as 32-point I/ O modules.
• In a slot away from AC or high-voltage DC modules, hard contact switches, relays, and AC motor
drives.
• Away from the rack power supply (if installing a modular controller system).
Protecting Circuit Boards from Contamination
The printed circuit boards of the module must be protected from dirt, oil, moisture, and other airborne
contaminants. Ensure that the module is kept in an enclosure at all times. The interior of the enclosure should
be kept clean and the enclosure door should be kept closed whenever possible.
Wiring
• For UL and CUL compliance, power and input/output wiring must be in accordance with Class 1,
Division 2 wiring methods (Article 501-4(b) of the National Electrical Code, NFPA 70) and in
accordance with the authority having jurisdiction.
• Channels are isolated from one another.
• Route field wiring away from any other wiring and as far as possible from sources of electrical noise,
such as motors, transformers, contactors, and ac devices. As a general rule, allow at least 15.2 cm (6
in.) of separation for every 120V of power.
16
Counter / Flow Meter Input Module
• Routing field wiring in a grounded conduit can reduce electrical noise.
• If field wiring must cross AC or power cables, ensure that they cross at right angles.
• If multiple power supplies are used with analog inputs, the power supply commons must be connected.
• To ensure optimal accuracy, limit overall cable impedance by keeping a cable as short as possible.
Locate the module as close to input devices as the application permits.
• Tighten terminal screws with care. Excessive tightening can strip a screw.
• The module is generally mounted to a well grounded mounting surface, such as a metal panel.
Additional grounding connections from the module’s mounting tabs or DIN rail (if used) are not
required unless the mounting surface cannot be grounded. Keep shield connection to ground as short as
possible.
• Under normal conditions, the drain wire and shield junction should be connected to earth ground, via a
panel or mounting screw at the module end. Refer to IEEE Std. 518, Section 6.4.2.7 or contact the
sensor manufacturer for additional details.
• For field wiring, use shielded, twisted-pair cable, and ground each cable’s shield wire at one end only.
At the opposite end of each cable, tape the exposed shield wire to insulate it from electrical contact. A
good shield wire ground is a rack assembly mounting bolt or stud.
• In the process of wiring the modules, route all signal wires as far as possible from potential sources of
electrical noise, such as motors, transformers, etc. (especially AC devices).
• If noise persists for a device, try grounding the opposite end of the cable. (You can only ground one
end at a time.)
Module Installation
This section tells how to insert the module in the PLC rack and remove it as needed. The Quantum counter
module is suitable for use in an industrial environment when installed in accordance with these instructions.
Specifically, this equipment is intended for use in clean, dry environments (Pollution Degree 2) and for circuits
not exceeding Over Voltage Category II (IEC 60664-1).
Installing the Terminal Block
To install the terminal block:
1. Gently insert the terminal block into the module housing.
2. Install the upper and lower retaining screws, using 0.46 Nm (4.1 in-lb) torque.
3. Use the write-on label located on the door of the module to identify the module location and type.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Inserting the Module in the PLC Rack
Do the following to place the module in the PLC rack:
1. Ensure that the rack is properly grounded and installed in a NEMA-rated enclosure.
2. Disconnect all power to the module, and disconnect it from any connected devices. See Removing Power.
WARNING Installation or removal of the module with power applied can cause an electrical
arc. An arc can cause personal injury or property damage by sending an erroneous signal to your system’s
field devices. This signal can result in unintended machine motion, an explosion in a hazardous environment,
or excessive wear to contacts on both the module and its mating connector (possibly leading to premature
failure).
3. Align the module with the top of the rack. slot.
4. Slide the module into the slot until both top and bottom are secure.
5. Apply firm, even pressure to the module to attach its backplane connector to the PLC bus connector.
Never force the module into the slot.
6. Tighten the module screws that hold the module to the rack..
7. Align the terminal block to the module in gently press until it is properly seated.
Removing the Module
To remove the module from the PLC rack:
1. Disconnect all power to the module, and disconnect it from any connected devices. See Removing Power.
2. Gently slide the module out of the rack slot.
WARNING Installation or removal of the module with power applied can cause an electrical
arc. An arc can cause personal injury or property damage by sending an erroneous signal to your system’s
field devices. This signal can result in unintended machine motion, an explosion in a hazardous environment,
or excessive wear to contacts on both the module and its mating connector (possibly leading to premature
failure).
Field Wiring
This section provides instructions for field wiring the installed module. You will need:
• A small flat-head screwdriver
• Belden 8761 (shielded, twisted pair) cable or equivalent
Wiring for wiring guidelines to keep in mind during field wiring of the module.
See
18
Counter / Flow Meter Input Module
Removing and Replacing the Terminal Block
When wiring the module, it is not necessary to remove the terminal block. However, if necessary, you can use
this procedure for removal and replacement.
1. Loosen the upper and lower retaining screws, alternating between screws. The terminal block backs
away from the module as you remove the screws.
2. Carefully pry the terminal block loose.
3. When ready to replace the terminal block, insert and tighten the retaining screws. Torque the retaining
screws to 0.46 Nm (4.1 in-lb).
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
y
y
Wiring the Terminal Block
The module terminal block has eight shield terminals provided as frame ground connections for input wire
shielding. It also provides eight external encoder disable pins used to externally gate each input. A low input
allows each channel (or channel pair) to operate. There are also 8 counter enable lines that are compatible with 5,
12, and 24 VDC inputs. If pulled high with one of these inputs, a channel (or channel pair) is disabled.
Channel 2 Hi Pin 2
Channel 2 Lo Pin 4
Channel 2 Shield Pin 6
Channel 2 Enable Pin 8
Channel 2 Gate Pin 10
Channel 4 Hi Pin 12
Channel 4 Lo Pin 14
Channel 4 Shield Pin 16
Channel 4 Enable Pin 18
Channel 4 Gate Pin 20
Channel 6 Hi P in 22
Channel 6 Lo Pin 24
Channel 6 Shield Pin 26
Channel 6 Enable Pin 28
Channel 6 Gate Pin 30
Channel 8 Hi Pin 32
Pin 1 Channel 1 Hi
Pin 3 Channel 1 Lo
Pin 5 Channel 1 Shield
Pin 7 Channel 1 Enable
Pin 9 Channel 1 Gate
Pin 11 Channel 3 Hi
Pin 13 Ch a nnel 3 Lo
Pin 15 Ch a nnel 3 Sh ield
Pin 17 Ch a nnel 3 En ab le
Pin 19 Ch a nnel 3 Ga te
Pin 21 Channel 5 Hi
Pin 23 Ch a nnel 5 Lo
Pin 25 Ch a nnel 5 Sh ield
Pin 27 Ch a nnel 5 En ab le
Pin 29 Ch a nnel 5 Ga te
Pin 31 Ch a nnel 7 Hi
Pin 33 Channel 7 Lo
24VDC
+ -T
Meter Input
1- On
0 - Off
Off OnOff
pica l Q uadratur e
T
Encoder Input
A input
Common
B input
pical
Channel 8 Lo Pin 34
Channel 8 Shield Pin 36
Channel 8 Enable Pin 38
Channel 8 Gate Pin 40
Pin 35 Channel 7 Shield
P in 37 C ha nn el 7 Enab le
Pin 39 Channel 7 Gate
Each terminal accepts up to two wires, with the restrictions noted in the following table (for shielded, twisted-pair
cable).
1. Determine the length of cable you need to connect a channel to its field device. Remember to include
additional cable to route the drain wire and foil shield to their ground points.
2. If you need to remove the terminal block cover, insert a screwdriver into one of the square wiring holes,
and gently pry the cover off. Be sure to replace the cover before proceeding.
3. Loosen the terminal screw to be wired.
4. Route the wire under the terminal pressure plate.
5. Connect only one end of the shield to the module. You can use the bare wire or a spade lug. The
terminals accept a 6.35 mm (0.25 in.) spade lug.
6. Tighten the terminal screw, making sure the pressure plate secures the wire.
7. A removable write-on label (ID tag) is provided with the terminal block. Remove the label from the
door, mark the identification of each terminal with permanent ink, and slide the label back into the door.
The ID tag is visible when the module door is closed.
Wiring the Module for Inputs
After the terminal block is wired, use the procedure in this section to connect the inputs to the terminal block.
To ensure proper operation and high immunity to electrical noise, always use Belden 8761 shielded, twisted-pair
wire, or equivalent.
CAUTION - To prevent shock hazard, take care when wiring the module to analog signal sources. Before
wiring, disconnect power from the system power supply and from any other source.
CAUTION - When wiring an analog input, take care to avoid connecting a voltage source to a channel
configured for current input. Improper module operation or damage to the voltage source can occur.
1. At each end of the first cable, strip some casing to expose the individual wires.
2. On each end of the cable, separate the wires and trim the signal wires to 5.08 cm (2 in.) lengths. Strip
about 4.76 mm (.18 in.) of insulation to expose the end of each wire. Be sure to not cut the wires too
short.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
CAUTION - Be careful when stripping wires. Wire fragments that fall into a module could cause damage at
startup.
3. At the module end of the cable, cut the drain wire and foil shield.
4. Check the signal wires to ensure that they are the correct length to connect to the terminal block.
5. At the input device end of the cable, twist the drain wire and foil shield together. Under normal
circumstances, you will connect the drain wire and shield to earth ground, via a panel or DIN rail
mounting screw at the end of the module. Keep the length of the drain wire as short as possible.
6. Connect the cable to the input device as required.
7. Repeat steps 1 through 6 for the other cables.
8. Configure the module as described in chapter 3, “Module Configuration.”
22
Counter / Flow Meter Input Module
3Chapter
Module Configuration
This chapter includes information on the following:
• Module addressing
• Setting up the PLC configuration software (ModSoft, Concept, and SCIOCFG)
• Making bit settings for zoom (parameter) registers
• Making bit settings for 4X configuration (output) registers
• Making bit settings for 3X data and status registers
Some configuration can be performed using the ModSoft, Concept, and SCIOCFG configuration programs.
However, many configuration steps require ladder logic to be prepared for your PLC. For these cases, module
addressing details and bit settings are provided in this chapter, while programming details are included in chapter
4, Programming.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Module Addressing
The module uses sixteen zoom (parameter) registers, nine 4X (output) registers for configuration words, and
eight 3X (input) registers for data and status words.
Table 3-1 Module Registers
RegisterFunction
Zoom+0..7Basic Configuration data (4ch - 0..3 / 8ch - 0..7)
Zoom+8****Bank Switch Period in Autosequence Mode
4XModule Configuration Word
4X+1Scale Factor / Count Limit Word
4X+2Channel 1 Control Word
4X+3Channel 2 Control Word
4X+4Channel 3 Control Word
4X+5Channel 4 Control Word
4X+6*Channel 5 Control Word
4X+7*Channel 6 Control Word
4X+8*Channel 7 Control Word
4X+9*Channel 8 Control Word
3XModule Status
3X+1***Count Data LSW Chan 2*N-1
3X+2***Count Data MSW 2*N-1
3X+3***Count Data LSW Chan 2*N
3X+4***Count Data MSW 2*N
3X+5***Rate Data 2*N-1
3X+6***Rate Data 2*N
3X+7***Status Data 2*N-1
3X+8***Status Data 2*N
Note X=bank number
*These registers only apply to the 8 channel counter (140 EHC 208 00).
***Comprehensive Mode shown. Speed mode explained in Data retrieval and Module Configuration Word (4X+0
Register under the description for Multiplexing Mode and Bank Number.
****The default is that the module update as fast as possible. This register allows the user to set in milliseconds the
update rate. For example, a 60 in this register will cause each bank to be updated in 60miliseconds. Since there are
four banks (in the 8 channel module) the total update time will be 240ms. In the four channel module the update
time would be 120ms.
24
Counter / Flow Meter Input Module
Setting Up the Configuration Software
The module is compatible with several configuration software packages: ModSoft version 2.4 or later, Concept
version 2.1 or later, and ProWorx NxT. Setup and configuration instructions for ModSoft and Concept are
provided in this manual.
Included with the module is a 3.5-inch floppy disk. Install the disk files to update the configuration software so
that you can properly configure your module. These files update the configuration software and include
application programming examples.
Table 3-2 Module Files
File NameInstallation Disk DirectoryDescription
GCNFTCOP.SYS\MODSOFT\ModSoft I/O map module definitions
LMSFDT .SYS\MODSOFT\ModSoft zoom screens
QUANTUM.SYS\MODSOFT\Quantum help screens for ModSoft
SCIOCFG.EXE\CONCEPT\Spectrum utility that runs under Concept to provide help setting
up configuration I/O files; this is a 32-bit Windows program requiring W indows 95/98/NT
SPECTRUM.HLP\CONCEPT\Spectrum I/O for Quantum module help file
SPECTRUM.MDC\CONCEPT\Spectrum I/O for Quantum module definition file
Setting Up ModSoft
For ModSoft (version 2.4) to recognize the Quantum counter module, you must update the software with the
LMSFDT.SYS, GCNFTCOP.SYS, and QUANTUM.SYS files. You should also install the ModSoft example
files at this time. See “
To install the runtime files for ModSoft:
1. Identify the path in which ModSoft is installed, for example, C:\MODSOFT\.
2. Insert the installation disk in the drive (probably A:).
3. From MS-DOS on the PC, enter the following command (assuming installation from the A: drive):
C:\> COPY A:*.SYS C:\MODSOFT\RUNTIME\
4. Verify that the files have been copied to the C:\MODSOFT\RUNTIME\ directory.
5. Verify that the example files have been copied to the C:\MODSOFT\PROGRAMS\ directory.
Setting Up the Configuration Software.”
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Setting Zoom Registers Using ModSoft
The procedure below tells how to enable the zoom registers and make configuration settings in ModSoft. Refer
Zoom Register Layout.
to
1. Ensure that the ModSoft configuration software has been updated from the module installation disk, as
described in “Setting Up ModSoft” .
2. Open ModSoft, and access the I/O map screen.
3. Select the slot in which you have installed the module.
4. Now enter Shift+? to display a list of modules available for placement in the selected slot.
5. Choose your Quantum counter module from the list. For module-specific help, enter Alt+H.
6. Choose the first 3X and 4X registers to be used in the system for the module.
7. Now enter the zoom screens by highlighting the entry for your module and pressing Alt+Z. For zoom
screen operation, see Modicon’s ModSoft Programmer User Manual.
8. Select an input type for each group of two channels. The default is 5 volts.
9. For each group of two channels, select an input range that corresponds to the input type selected. See “
Input Range, Bits 15 and 16.”
10. Select a count mode for each group of two channels. See “
11. Select a filter frequency for each channel. See “
12. Select a filter frequency for each channel. See “
13. Select a count size for each channel. See “
30 kHz Filter, Bit 12.”
15 kHz Filter, Bit 11.”
Count Size, Bit 10.”
Count Mode, Bit 13 and 14.”
Setting Up Concept
For Concept to recognize the Quantum counter module, you must update the software with the files
SPECTRUM.MDC and SPECTRUM.HLP. See “
To install the runtime files for Concept:
1. Identify the path in which Concept is installed, for example, C:\CONCEPT\. You will probably use the A: drive for the
installation disk.
2. Using your file manager copy the files SPECTRUM.MDC and SPECTRUM.HLP on the disk to the C:\CONCEPT
directory.
3. Verify that the files have been copied to the C:\CONCEPT directory.
Setting Up the Configuration Software.”
26
Counter / Flow Meter Input Module
Setting Zoom Registers Using Concept
The next procedure describes how to enable the zoom registers and make configuration settings in Concept.
Refer to
Zoom Register Layout.
1. Ensure that the Concept software has been updated from the installation disk as described in “
Up Concept
2. Start the Concept Modconnect tool (Modconf.exe).
3. From Modconnect, open the file SPECTRUM.MDC.
4. Select the Quantum counter module, or click Add All.
5. Save your changes and exit Modconnect to update the Concept database. The changes are permanent
unless you later undo the changes using Modconnect, or perform a new Concept software installation.
6. In Concept, create a new project.
7. Enter the starting 3X register address (InRef). Nine registers are automatically allocated.
8. Enter the starting 4X register address (OutRef). 6/10 registers are allocated. (4ch - 6 / 8ch - 10)
9. Select the Configurator tool from the project pulldown menu.
10. Choose Configure, then click I/O Map to open the I/O map editor.
.”
Setting
11. In the I/O map screen, type the number for the correct “drop” and click Edit.
12. From the list presented, select the Spectrum Controls catalog number of the module.
13. Click the button in the module select column for the appropriate rack slot.
14. The next screen represents your module. Click the parameters button.
15. Insert hexadecimal values for registers 1-9 (1-5 for the 4-ch module) to fully configure the module if
you are not using the SCIOCFG utility program.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Setting Up SCIOCFG Software
Version 2.1 of Concept introduced a tool for importing Modconnect module definition files into the Concept
database. This allows you to configure Modconnect I/O. However, Concept 2.1 does not provide a means for
you to design your own I/O configuration menus. Instead, Concept provides a generic interface in which you
must enter configuration parameters in hexadecimal values. To save you the trouble of calculating the correct
hexadecimal values for configuration parameters, Spectrum provides the SCIOCFG utility.
SCIOCFG presents user-friendly selection lists using standard Windows interfaces. The utility automatically
constrains all parameters to legal values during the data entry process. You can run the utility in standalone mode
or synchronous mode. In standalone mode, you will configure module data as desired. SCIOCFG then presents
the parameters in hexadecimal values so that you can manually transfer this data to Concept at a later time.
In the synchronous mode, SCIOCFG runs in the background waiting for you to select the module in the
Concept generic I/O parameter configuration menu. When this occurs, SCIOCFG reads the data from the
Concept generic I/O parameter configuration menu, and activates the appropriate I/O parameter configuration
menu. When you click the SCIOCFG OK button, the new data is sent to Concept.
Set up SCIOCFG as follows to run the utility from Concept:
1. Identify the path in which to install SCIOCFG, for example, C:\SCIOCFG\. You will probably use the
A: drive for the installation disk.
2. Using Windows Explorer, copy the SCIOCFG.EXE file from the installation disk to the desired
directory. Then add a shortcut to the Windows desktop or add the program to the Windows taskbar
using standard Windows techniques.
NOTEYou may create a desktop shortcut to the program by locating the sciocfg.exe file on your drive,
right click and select copy the file and then right click and paste a shortcut to your desktop.
3. Now SCIOCFG EXE is ready to run as a background task when Concept is used to change the
configuration registers of the module. For more about its use, see “
Concept.”
Setting Zoom Registers Using
Making Bit Settings for Zoom Registers
One parameter (zoom) register is assigned to each input channel, for a total of eight registers. Note that some
data needs to be the same for channel pairs. For example, quadrature mode must be selected on two adjacent
channels, since quadrature inputs use two channels. Also, the input range is controlled with one multiplexer for
an input pair. Thus each channel pair must have the same input range.
For zoom registers, you can make bit settings from either ModSoft or Concept software. This section first
describes the layout of the register and then tells how to set the bits from both programs.
28
Counter / Flow Meter Input Module
Zoom Register Layout
The following table shows the layout for each of the zoom registers. The 8 channel module uses this layout for
the first eight registers. The four channel uses the first 4 zoom registers. (The nineth - 8 channel or 5th - channel
zoom register specifies the Bank Switch Period in the Autosequence Mode.) , with bit 1 the MSB and bit 16 the
LSB.
Table 3-3 Bit Settings for Zoom Registers
Function12345678910111213141516
Input range*5V **00
12V01
24V10
AC11
Count mode*Unidirectional **00
Bidirectional01
Quad. 1X10
Quad. 4X11
30kHz filterDisabled **0
Enabled1
15 kHz filterDisabled **0
Enabled1
Count size65K **0
16M1
Rate Scale1.0Hz0
0.1Hz1
UnusedXXXXXXXX
* Channel Pairs (1-2, 3-4, 5-6, 7-8) must be configured the same to operate properly .
** Default Settings
Input Range, Bits 15 and 16
These bits select one of the four available input ranges: 5V, 12V, 24V and AC. Select the range that is closest to
the maximum amplitude of your device signal. For example: If your flow meter has a peak signal amplitude of
20 volts, select the 24V input range. Each range selection determines the counter trip level. Matching the input
range to your signal amplitude will miximize false counting.
NOTE: Allow at least one scan time for input range information to be updated at the PLC.
NOTE: Channel pairs (1-2, 3-4, 5-6, 7-8) must be configured with identical input ranges to function properly.
Count Mode, Bits 13 and 14
The count mode bits select the type of input operation. Possible types are:
• Unidirectional
• Bidirectional
• Quadrature 1X
• Quadrature 4X
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Uni-Directional
With this configuration, the input increments in an upward direction. All 8 channels may be
configured in the unidirectional mode. Every clock pulse will increment the counter on the rising
edge. Note: The direction of the counter may be inverted by setting the Count Direction bit described in the Configuration chapter .
Bi-Directional
The bidirectional counter requires 2 input channels. In this mode the first channel is used as the
counter input and the 2nd channel is used to determine the count direction. The counter will increment when the Direction Channel value is 0, and will decrement when the Counter Direction Channel value is 1.
X1 Quadrature Encoder
The quadrature mode requires 2 input channels. When a quadrature encoder is attached to
inputs 1 and 2, the count direction is determined by the phase angle between inputs 1 and 2. If 1
leads 2, the counter increments. If 2 leads 1, the counter decrements. (The counter changes value
only on one edge of input 1.) The counter increments once per quadrature cycle.
X4 Quadrature Encoder
Like the X1 quadrature encoder, the count direction is determined by the phase angle between
inputs 1 and 2. If 1 leads 2, the counter increments. If 2 leads 1, the counter decrements. However,
the counter changes value on the rising and falling edges of inputs 1 and 2. The counter increments
four times per quadrature cycle.
Note: If 2 is low, the count increments on the rising edge of input 1 and decrements on the
falling edge of input 1. If 2 is high, all transitions on input 1 are ignored.
A
Quadrature
Encoder
Forward Rotation Reverse Rotation
A
B
B
Input A
Input B
30
x1 Count
x4 Count
1
1 2 3 4 5 6 7 8 9 10 11 12
2
3
2
11 10 9 8 7 6 5 4 3 2 1 0
10
Counter / Flow Meter Input Module
30 kHz Filter, Bit 12
The 30 kHz filter is recommended for counter or flow meter applications running at speeds less
than 25 kHz. Set this bit to 0 when running to speeds of 50 kHz. Setting this bit to 1 filters input
noise above 30 kHz.
15 kHz Filter, Bit 11
The 15 kHz filter is recommended for counter or flow meter applications running at speeds less
than 15 kHz. Set this bit to 0 when running to speeds above 15 kHz. Setting this bit to 1 filters input
noise above 15 kHz.
Count Size, Bit 10
This bit determines the maximum counter value. When set to 0 the channel counter will count
up to 65,535 (1- 16bit word of data). When the maximum value of 65,535 is reached, the Maximum
Count flag is set, and rollover will occur at this point. When the count size is extended to 16,777,216
by setting this bit to 1, the Counters Maximum flag is extended to 16M and data output is formed
using two words. The counter Preset and Limit values are also extended to 16M. This means that the
resolution of the Preset and Limit values are set in blocks of 256 counts (8bits) beacause only one
word is available for each limit. This allows the preset and limit values to cover the whole 16M bit
range.
Rate Scale, Bit 9
The Rate Scale bit allows the user to adjust the resolution of the Rate output word. The default
resolution is 1Hz. Setting this bit to 1 changes the resolution to 0.1Hz. The Rate output word is a 16
bit integer. When set to 0.1Hz the decimal point is implied to be the first position in the integer word.
For example, 1Hz rate = 32767, 0.1Hz rate = 3276.7 .
Note: This setting is only valid while operating in the Instantaneous Rate Mode.
Bits 8 through 1 - Not Used
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Making Bit Settings for 4X Registers
You can only set 4X register bits using ladder logic. This section describes the layout for the registers and defines
the bits. Ladder logic examples are provided in chapter 4, Programming.
The first 4X register controls channel enabling and multiplexing. The following table shows the bit settings for
this register.
Table 3-4 Bit Settings for First 4X Register
Function12345678910111213141516
ProgramDo Not Program0
EEPROMProgram1
Limit WordDisabled0
Enabled1
* Applies only to the 8 channel module.
**When this bit is set it will disable K, M, and R scaling. It has no effect on limit words (preset, count limit, and rate
limit).
32
Counter / Flow Meter Input Module
Bank/Data Format Select: Bits 15-16
The function of these two bits is determined by the Data Delivery Mode, Bit 14.
If the Data Delivery Mode is comprehensive, Bit 14 = 0, the bank will be displayed as shown
below:
00:Bank 0 – channels 1 and 2
01:Bank 1 – channels 3 and 4
10:Bank 2 – channels 5 and 6
11:Bank 3 – channels 7 and 8
If the Data Delivery Mode is Speed, Bit 14 = 1, the bank will be displayed as shown below:
00:All channels Count LSW only.
01:All channels Count MSW only.
10:All channels Rate only
11:All channels Status only .
Data Delivery Mode Select: Bit 14
This bit specifies which multiplexing mode is being used: 0 = Comprehensive or 1 = Speed
This bit directly effects the Bank/Data Format Select settings, Bits 15-16.
The Comprehensive mode reports counter LSW, MSW, Rate and Status in channel pairs (1-2, 34, 5-6, 7-8) This mode is slower than the speed mode but offers all available data to the end
user.
The Speed mode reports a specific data or status value for all channels within one word. This is
a faster method of retrieving data as one may, for example, retrieve Rate values for all channels
by reading one data word.
Be aware of data synchronization problems when in the speed mode.
Note that when the Speed method is used there is no data synchronization between groups. I.e.
if count LSW is read followed by Count MSW, Count MSW data will be more recent data and
will not be synchronized with the previous Count LSW data.
Multiplexing Control: Bit 13
This bit allows the user to determine if multiplexed registers must be manually specified before
retrieval or if these registers are automatically sequencially reported.
Setting this bit to 0 activates the Manual mode.
Setting this bit to 1 activates the Autosequence mode.
Parameter Definition: Bits 10- 12
These bits determine which Parameter Value (for scale/limit word) is being prepared for pro
gramming into EEPROM. These bits are used in conjunction with the Channel Number selec
tion, Bit 6-8, to determine the scale factors for a specific channel.
The actual parameter value is defined in register 4X+1.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Due to the limited register availability of the Quantum Platform, the scale and limit factors are
multiplexed onto register 4X+1. Changing these values will generally occur either at power-up or
line changeover. On power up, scale factors default to the values stored in EEPROM and the count
limit values (preset, count limit, and rate limit) default to zero.
These values can be altered during operation, but if the new power up default values are desired, the values must be programmed into the EEPROM by using the Programm EEPROM setting,
Bit 2.
Not Used - Bit 9
Channel Number for scale/limit word: Bits 6-8
These bits are used to specify the channel to which the scaling values will be applied. It is
critical that these are set along with the Parameter Definition settings, Bits 11-13 in order to program
the proper scale factors to a particular channel.
Not Used : Bits 4-5
Disable Scaling : Bit 3
Asserting this bit disables the K, M, and R scaling factors without effecting the limit words
(preset, count limit, and rate limit).
Program EEPROM : Bit 2
Asserting this bit places the parameter that is currently in to 4x+1 register into EEPROM. After
the value has been programmed the module will retain the value even if power is removed. It is
recommended that you programm all scaling factors first and then write them to EERPROM. This is
faster and will prolong the life of the EEPROM.
Enable Scale/Limit Word: Bit 1
Asserting this bit enables register 4X+1. The value in register 4X+1 is defined by the Channel
Number bits and the Parameter Definition bits.
If the customer desires to update the K, M, R, Preset, count limit, or rate limit values the enable
scale/limit word bit must be set. The default values for all of these scaling and limit words is initially 0. Programming these values in EEPROM so that the values will need to be stored only once.
The module will retain these values even if power is removed.
Layout for 4X+1 Register
The 4X+1 register is used to set the Preset, count limit, Rate Limit, M scale factor, K scale
factor, and R scale factor for each channel as explained in Table X Module Configuration W ord
(4X+0 Registers). These scale factors are explained as follows:
34
Counter / Flow Meter Input Module
Counter Preset:
This output data word is used in conjunction with the Counter Preset enable bit. When this bit
is set, the value in the counter preset word is loaded into the counter. The counter preset can be used
to set the counter to an initial starting value. The bit should be set for at least one I/O scan. The bit
can be held on until the data in the counter data is verified to be equal to the preset value. The
counter will hold the preset value until the counter preset bit is turned off. At this time normal
counter functions will resume. The preset value should always be set less than the Counter limit
value.
When the count size is extended to 16M, the Counters Maximum flag is extended to 16M. The
counter Preset and Limit values are also extended to 16M. This means that the resolution of the
Preset and Limit values are set in blocks of 256 counts (8bits). This allows the preset and limit
values to cover the whole 16M bit range.
Counter Limit:
Note: the User sets The Count Limit and Preset. When the module is in the extended count
mode all limits and preset values are multiplied by 256. If the module has a K factor set the resulting
value is then divided by the K factor .
Rate Limit
This input data register is used in conjunction with the Preset and Count Limit Mode bits.
When the Rate limit value other than 0 is present the data value in this register can be used as an
upper frequency limit and annunciated via the Rate Limit Status Flag. T o write the value to
EEPROM the Program EEPROM bit must be toggled from a zero to a one.
M Scale Factor:
In Program Mode the data value in this register is used for scaling. The Scale data can be
stored in EEPROM. To store the scale data in EEPROM valid data must be place into this data
register. When the Program EEPROM bit toggles from a zero to a one, data in the Scale Register
will be written into the modules EEPROM. The M scale factor is used for meter calibration. When
a non-zero Scale Factor value is set the scale calculation is always performed. A value of zero must
be written to the Scale Factor to disable this feature.
The M factor value expressed as a 16 bit unsigned integer divided by 10,000. This value is
multiplied by the counter actual count value, and gives the M factor a range of 0.0001 to 6.5535
Most M factors will be within +- 5% of 1.0000.
K Scale Factor:
The K scale factor is used for flow meter scaling. This allows users to scale the meter output
into more useful units, like gallons. When a non-zero Scale Factor value is set the scale calculation
is always performed. A value of zero must be written to the Scale Factor to disable this feature.
This counter value is divided by the K factor . K factors are be positive numbers.
When a non-zero K factor is programmed into EEPROM, K divides the physical counter value.
Counter Output Value = Actual Counter Value / K.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
R Rate Factor:
The R scale factor can be used for scaling of the output frequency. The output frequency is
divided by the R scale value. Typically a factor of two will be used. The result is the rate data value
being 1/2 of the actual value. R factors must be positive numbers.
Rate Output Value = Actual Rate Value / R Factor
Layout for 4X+2 through 4X+9 Registers
Registers 4X+2 through 4X+9 registers contain control word information for the each channel. The information
includes runtime configuration and control options. The next table shows the bit settings for these control word
registers.
Function12345678910111213141516
DisableStart`0
Stop1
PresetOff0
On1
Reset CounterNo Reset0
Reset1
Gate EnableDisable0
Enable1
Count directionUp0
Down1
Reset flagsNormal0
Reset1
Stop on zeroOff0
On1
Stop on limitOff0
On1
Rate ModeAverage0
Instantaneous1
Roll Over ToZero0
Preset1
Roll Under toMax Count0
Preset1
UnusedXXXXX
Apply M FactorApply0
Do Not Apply1
Counter Enable, Bit 16
Set bit 16 to 1 to enable the counter to continue to count up or down from its present value. Use
a setting of 0 to stop the counter. Enabling the counter using bit 16 does not override the external
counter enable input. Both bit 16 of the control word register and the input must be enabled for the
counter to continue counting. If either is disabled, the counter will hold its last value and stop
counting.
36
Counter / Flow Meter Input Module
Preset, Bit 15
Set bit 15 to 1 to load the counter preset value into the counter. This value is used to set the
counter to an initial starting value. Set bit 15 for at least one I/O scan, and hold it on until counter
data is verified to be equal to the preset value. The counter holds the preset value until the bit 15 is
turned off (set to 0). At this time normal counter functions resume.
NOTEA counter preset function begins when bit 15 is set to 0.
Reset Counter, Bit 14
This bit resets the counter. When this bit is set the count value will go to zero and all flags will
be reset.
Gate Enable, Bit 13
Set bit 13 to 1 to enable the 5-24VDC pulse-to-enable circuit used during meter proving. This
bit should be set to 0 at all other times.
Count Direction, Bit 12
Bit 12 determines the count direction for a counter . Normally you will set this bit to 0 to count
up, and to 1 to count down. For a quadrature encoder, however, a setting of 0 uses the normal
quadrature decode direction. A setting of 1 inverts the direction.
Reset Flags, Bit 1 1
Bit 11 is used to reset the internal flags that indicate the maximum, limit, and zero conditions
for the counter and the input rate. The flags are defined in the following table.
Table 3-6 Reset Flags
Flag
Maximum
For the Counter
Indicates when the count passes the counter maximum. The maximum depends on the count size, described in
“Count Size, Bit 9” on page S Section header]1. The maximum is set at 65,536 for standard mode or
16,777,216 for extended mode. The status of the flag is reflected in the counter maximum bit in the 3X state
register register for the channel. See “ Counter Limit State, Bit 10”.
For the Input Rate
Indicates when the input rate exceeds the maximum range for the rate mode, described in “ Rate Mode, Bit 12”
on page S Section header]1. The status of the flag is reflected in the rate maximum bit in the 3X state register
for the channel. See “ Rate Maximum State, Bit 7”.
Limit
For the Counter
Indicates when the count passes the counter limit. The limit depends on the count size, described in “ Count
Size, Bit 9” on page S Section header]1 . The status of the flag is reflected in the counter limit bit in the 3X
state register register for the channel. See “ Counter Limit State, Bit 10”.
For the Input Rate
Indicates when the input rate exceeds the non-zero limit set in the rate limit/R data register, and that the input
rate is above it limit (see “ Contents of Registers 4X+4 and 4X+8” on page S Section header]1 ). The status
of the flag is reflected in the rate limit bit in the 3X state register register for the channel. See “ Rate Limit
37
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
State, Bit 6”.
Zero
For the Counter
Indicates when the count is zero. The status of the flag is reflected in the counter zero bit in the 3X state register
register for the channel. See “ Counter Zero State, Bit 8”.
For the Input Rate
Indicates when the input rate is zero or below . The status of the flag is reflected in the rate zero bit in the 3X
state register register for the channel. See “ Rate Zero State, Bit 5”.
Setting bit 11 to 0 latches the normal state of the flags until they are reset. This allows the ladder logic program to monitor
the state of the flags and reset them (to 1) as needed when parameter settings change. Setting bit 11 to 1 reports the counter
flags to the PLC for one scan cycle, and then resets them automatically. If the maximum, limit, or zero condition still exists,
the module sets the flags back to 1 on the next update cycle.
NOTE: You can use bit 11 to reset the reset flags as a counter value passes through a maximum range value. However, the
two values cannot be equal at the time the counter value is read from the backplane. For example, if the counter limit is set
to 10,000, the counter limit flag is set when the count exceeds 10,000. The next count value transferred to the rack might be
10,050. The status register will have the counter maximum range flag set for this transfer of counter data.
Stop on Zero, Bit 10
Set this bit to 1 to hold the counter output at zero. When the counter counts down to zero, it
either rolls down through zero into full scale or holds its output at zero counts, until the counter zero
flag is reset. When the flag is reset, the counter continues to count. See “ Reset Flags, Bit 11 .” for
more about the counter zero flag.
Stop on Limit, Bit 9
Set this bit to 1 to hold the counter output at its limit value. When the counter counts up to the
limit value, the counter either rolls over to zero or holds its output at the limit value, until the counter
limit flag is cleared. When the flag is cleared, the counter continues to count. If the user-defined
count limit is equal to zero, the limit is internally set to 65,536 (64 K count size) or 16,777,216 (16
M count size). See the count size parameter description in “ Making Bit Settings for Zoom Regis-
ters.”
Rate Mode, Bit 8
When this bit is reset to “0” the frequency detection circuit operates in “Instant” mode. Instant
mode times the period of a single input transition from one rising edge to the next rising edge of an
input signal. Instant measurements are fast, in that they calculate a frequency based on one cycle.
However the accuracy of the measurement degrades as the input clock frequency goes up to 50KHz,
and any jitter within one cycle will be measured.
When the frequency mode bit is set to a “1” the frequency detection circuit is in “Average”
mode. Average mode counts the number of input transitions over a 1 second interval and calculates
the input frequency averaged over the 1-second interval. The average mode is slow , in that it reports
updated frequency rates once per second. However this mode is accurate to +- 1 count over the full
range of measurement.
38
Counter / Flow Meter Input Module
Roll over to, Bit 7
When the counter exceeds the maximum count or limit value it will roll over the top. When the
counter rolls over it can roll over to a starting value of zero, or it can start at the user-defined Preset
value. When this bit is set to zero the counter will roll over to zero. When set to 1 the counter will
roll over to the preset value. If the stop on limit flag is set the counter will not roll over until the
flag is released. When released the counter will roll over to its zero or preset value on the next input
clock.
Roll under to, Bit 6
When the counter, counts down to zero it will roll under. When the counter rolls under it can
roll into positive full-scale numbers, or it can jump to the predefined Preset value. When this bit is
set to zero the counter will roll into positive full scale numbers. When set to 1 the counter will roll
over to the preset value. If the stop on zero flag is set the counter will not roll under until the flag is
released. When released the counter will roll under to its maximum or preset value.
Unused, Bits 5-2
Apply M to Rate, Bit 1
If this bit is set to 0 the M factor will be applied to the Rate data value. When set to one, the M
factor will be applied to the rate value.
39
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Bit Settings for 3X+0 Registers
The 3X+0 registers contain data, scaling and status information for channels 1 through 8. You
can only set 3X register bits using ladder logic. This section describes the layout for the registers
and defines the bits. Ladder logic examples are provided in chapter 4, “Programming.”
Table 3-7 3X+0 Register Bit Settings
Function12345678910111213141516
All fields in the above table are echoes of what is in the 4X+0 register except configuration error and system error. Refer
to the section Configuration Word (4X+0 Register) for more details. Configuration error indicates an erroneous configuration has been input for at least one input channel. A system error indicates a problem with either the module or with a
module input.
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Counter / Flow Meter Input Module
The process for updating the scale coefficients and the count limits is as follows:
1.Set the Scale/Limit Word to its desired value (4x+1 register). This must be performed before updating the
module control word.
2.Set the following bits on the module control word (register 4X+0) to the appropriate state for the value to
be written:
a.Channel Number
b.Parameter Definition
c.Enable Scale/Limit Word (set to 1)
Note: This bit can be set at the same time as the channel number and parameter definition, but not earlier.
3.Read Module Status word (Register 3X+8) and verify the Enable Scale/Limit Word bit is set.
This verifies the module has received the control word update.
4.Set the Enable Scale/Limit Word bit to 0.
5.Update other Scale/Limit values by redoing steps 1 through 7.
To store K, M, and R values into the EEPROM perform the following:
1.Set the Program EEPROM bit (bit 2) in the Control Word (Register 4X+0).
2.Read Module Status word (Register 3X+0) and verify the Program EEPROM Echo(bit 2) is set. This
verifies the module has received the control word update.
3.Verify the Program EEPROM Echo bit has been set in the Module Status Word.
4.Zero the Program EEPROM bit and the Enable Scale/Limit Word bits in the Module Control Word.
Please refer to our website, www.spectrumcontrols.com, for ladder logic samples and technical notes.
Bit Settings for 3X Registers
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
The 3X registers (3X+1 through 3X+8) contain data and status information for channels 1
through 8. You can only set 3X register bits using ladder logic. This section describes the layout for
the status registers (3X+1 through 3X+8) and defines the bits. Ladder logic examples are provided
in chapter 4, “Programming.”
Table 3-7 3X+1 to 3x+8 Register Bit Settings
Function12345678910111213141516
Counter DisableStart0
Stop1
Counter Preset FlagReset0
Set1
Gate Enable EchoDisabled0
Enabled1
Counter InvertOff0
On1
Counter Input StateLow0
High1
Quadrature Direction Normal0
Inverted1
Count Size65K0
16M1
Counter Max FlagReset0
Set1
Counter Limit FlagReset0
Set1
Counter Zero FlagReset0
Set1
Rate Max FlagReset0
Set1
Rate Limit FlagReset0
Set1
Rate Zero FlagReset0
Set1
K&M Factor SetReset0
Set1
R Factor SetReset0
Set1
Configuration ErrorOK0
FlagError1
Enable Start/Stop Echo: Bit 16
This bit echoes the setting of the Counter Enable bit set in the channels control register. The
counter enable bit allows the counter to continue to count up or down from its present value. Starting or enabling the counter with this bit will not override the external counter input. Both the external input enable and the counter start bit must be enabled for the counter to continue counting. If
either the counter stop bit or the external input enable line are disabled the counter will hold its last
value and stop counting.
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Counter / Flow Meter Input Module
Counter Preset Flag: Bit 15
When the Counter Preset value is reached this flag bit is set. The bit is reset when the counter
in incremented up or down from the Preset value.
Gate Enable Echo: Bit 14
This bit echos the state of the gate enable line. The gate enable line is an external logic line
used to time counter events.
Counter Invert Echo: Bit 13
This bit echos the state of the counter direction. The invert flag indicates if the invert bit has
been set. It is not an absolute indication of direction but instead an indication that the starting direction has been changed. For example: If the counter begins in a downward direction and the bit it set,
Counter Input State: Bit 12
This bit shows the current value of the output state. The state of the output will be sampled at
the end of the current update cycle. For rapidly changing counter inputs the state of this bit could be
either high or low depending on the exact time of measurement. This purpose for this bit is to
provide slow counter feedback and single count diagnosis. This bit can also be used as a generalpurpose digital input line back to the PLC.it will invert direction to an upward mode.
Quadrature Direction State: Bit 11
This bit shows the current direction of the quadrature encoder . The state of the encoder will be
sampled at the end of the current update cycle. For rapidly changing counter inputs the state of this
bit could be either high or low depending on the exact time of measurement. This purpose for this
indicator is to provide quadrature detection feedback to aid in system diagnosis.
Count Size Selection Echo: Bit 10
This bit echo’s the state of the maximum counter value selected in the configuration register.
When reset to zero the channel counter will count up to 65K (1 word of data). When the counter at
65K the maximum count value is reached, the Maximum Count flag is set, and rollover will occur at
this point. Channel update time should be faster if the counter values are set to 65K. The level of
speed improvement will need to be determined. When the count size is extended to 16M, the
Counters Maximum flag is extended to 16M. The counter Preset and Limit values are also extended
to 16M. This means that the resolution of the Preset and Limit values are set in blocks of 256 counts
(8bits). This allows the preset and limit values to cover the whole 16M bit range.
Counter Max Flag: Bit 9:
This flag indicates that the counters accumulator has reached its maximum count value. When
the counter value is greater then or equal to the Max value the Counter Limit flag bit will be set. The
Max flag will stay set until the Reset Flags bit is toggled in the channels’ configuration register . The
Max flag is set at 65,536 and 16,777,216 depending on the data output mode.
Note that the internal counter H/W will set is Max flag when the counter is at –1 for both 65K
and 16M modes.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Counter Limit Flag: Bit 8
This flag indicates that the counters accumulator has reached its user-defined count limit.
When the Counter Limit word is in use, i.e. it has a value other than zero, then the Counter Range
flag indicates the counter is at the User defined limit. When the counter value is equal to the Limit
value the Counter Limit flag bit will be set until the Reset Flags Bit is set. If the Stop On Limit bit
is set the counter will not exceed the counter limit. If the Counter Limit function is not in use, i.e.
its value is zero, and then the Limit flag will never be set. This value is either 65,536 or 16,777,216
depending on the accumulator size selected.
Counter Zero Flag: Bit 7
The Counter Zero flag is set when the counter is reset to zero or counts down to zero. If the
Stop On Zero bit is set the counter will not roll until the Limit flag cleared. The Limit flag will stay
set until the Reset Flags bit is toggled in the channels’ configuration register .
Over Rate Flag: Bit 6
The over Rate flag is set when the input frequency exceeds its maximum range of 50KHz. This
flag indicates that the input counter rate is over the valid range of the module and that the value
indicated in the frequency data register may not be correct. This flag is normally set at 50kHz unless
a rate scale factor is used
Rate Limit: Bit 5
A user defined Rate Limit flag is active when the user has set the rate limit data register to a
limit value other than zero. When the rate value is greater then or equal to the limit value the Rate
Limit flag bit will be set indicating that the input rate is above its limit.
Rate Zero Flag: Bit 4
The Rate Zero flag is set when the input rate is zero. This flag can be used to flag an input fault
condition. Any input signal less than .5Hz will set the Zero rate flag.
K & M Factor Set Flag: Bit 3
This bit indicates that a non-zero K or M factor value has been written to the module EEPROM.
This value will be use to scale the input counter data. When a K or M factor is set all rate data will
be scaled by either one or both factors.
R Factor Set Flag: Bit 2
This bit indicates that a non-zero R factor value has been written to the modules EEPROM.
When a R factor is set all rate data will be divided by this factor.
Configuration Error Flag: Bit 1
This flag is set when the channel configuration word is set to an illegal state. An example
would be if one channel was configured for quadrature detection and its quadrature pair was not. In
this case both channels would have their configuration flags set until the configuration word was
corrected. All counter and rate data will be set to zero when an illegal configuration occurs.
Possible Configuration errors:
1. Range data between channel pairs in quad mode
2. Filter data between channel pairs in quad mode
44
Counter / Flow Meter Input Module
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
4Chapter
Programming
With configuration complete, it is time to prepare ladder logic to reflect your configuration settings.
Programming the module requires knowledge of counter configuration, PLC ladder logic, and data
management.
This chapter includes information on the following:
• Register Description
• Demultiplexing the data
• General programming examples
• Ring Counters
• Use of Meter Proving Input
Registers Description
You can configure the 4X registers in ladder logic. The program needs to reflect all the bit settings discussed in
chapter 3, Module Configuration. The 3x registers communicate data and status information. Below is a listing
of register utilization.
3000013xRegisterCounter card Configuration Word echo
3000023x+1RegisterChannel Data word 1
3000033x+2RegisterChannel Data word 2
3000043x+3RegisterChannel Data word 3
3000053x+4RegisterChannel Data word 4
3000063x+5RegisterChannel Data word 5
3000073x+6RegisterChannel Data word 6
3000083x+7RegisterChannel Data word 7
3000093x+8RegisterChannel Data word 8
400200N/AChannel 1 Preset
400201N/AChannel 1 Count limit
400202N/AChannel 1 Rate limit
400203N/AChannel 1 M factor
400204N/AChannel 1 K factor
400205N/AChannel 1 R factor
400300N/AChannel 2 Preset
400301N/AChannel 2 Count limit
400302N/AChannel 2 Rate limit
400303N/AChannel 2 M factor
400304N/AChannel 2 K factor
400305N/AChannel 2 R factor
Counter / Flow Meter Input Module
400400N/AChannel 3 Preset
400401N/AChannel 3 Count limit
400402N/AChannel 3 Rate limit
400403N/AChannel 3 M factor
400404N/AChannel 3 K factor
400405N/AChannel 3 R factor
400500N/AChannel 4 Preset
400501N/AChannel 4 Count limit
400502N/AChannel 4 Rate limit
400503N/AChannel 4 M factor
400504N/AChannel 4 K factor
400505N/AChannel 4 R factor
400600N/AChannel 5 Preset
400601N/AChannel 5 Count limit
400602N/AChannel 5 Rate limit
400603N/AChannel 5 M factor
400604N/AChannel 5 K factor
400605N/AChannel 5 R factor
400700N/AChannel 6 Preset
400701N/AChannel 6 Count limit
400702N/AChannel 6 Rate limit
400703N/AChannel 6 M factor
400704N/AChannel 6 K factor
400705N/AChannel 6 R factor
401100N/AChannel 1Count data Lsw
401101N/AChannel 1Count data Msw
401102N/AChannel 2Count data Lsw
401103N/AChannel 2Count data Msw
401104N/AChannel 1Rate data
401105N/AChannel 2Rate data
401106N/AChannel 1Status data
401107N/AChannel 2Status data
401200N/AChannel 3Count data Lsw
401201N/AChannel 3Count data Msw
401202N/AChannel 4Count data Lsw
401203N/AChannel 4Count data Msw
401204N/AChannel 3Rate data
401205N/AChannel 4Rate data
401206N/AChannel 3Status data
401207N/AChannel 4Status data
401300N/AChannel 5Count data Lsw
401301N/AChannel 5Count data Msw
401302N/AChannel 6Count data Lsw
401303N/AChannel 6Count data Msw
401304N/AChannel 5Rate data
401305N/AChannel 6Rate data
401306N/AChannel 5Status data
401307N/AChannel 6Status data
401400N/AChannel 7Count data Lsw
401401N/AChannel 7Count data Msw
401402N/AChannel 8Count data Lsw
401403N/AChannel 8Count data Msw
401404N/AChannel 7Rate data
401405N/AChannel 8Rate data
401406N/AChannel 7Status data
401407N/AChannel 8Status data
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Counter / Flow Meter Input Module
Example : Demultiplexing Data
The following ladder logic shows how to move data from the 4 multiplexed input words to a block of 8 output words starting
at location 400001 using the manual mode. This and other ladder logic samples may be found on our website,
www.spectrumcontrols.com.
Rung 1 demultiplex data or channels 1 and 2 - Rung 2 demultiplexes data or channels 3 and 4
Rung 3 demultiplex data or channels 5 and 6 - Rung 4 demultiplexes data or channels 7 and 8
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
General Programming Examples
Example 1: Loading Scaling Factors
The following sample ladder logic shows how to load scale factors into the module. Refer to
the configuration bit table for information regarding factor and channel bit settings
Initialization: First Pass Condition - Coil 1 is True for only one scan. Rung 3 starts and stops
the ladder following this network.
Handshake for the counter card: Rungs 1 and 2 are used as a handshake to verify that valid
data is being passed to the card and that the counter card has received the data and is ready for the
next packet.
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Counter / Flow Meter Input Module
Select Channel - Rungs 1 and 2 select and load the data for channels 1 and 2 respectively .
Select Channel - Rungs 1 and 2 select and load the data for channels 3 and 4 respectively .
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Select Channel: Rungs 1 and 2 select and load data for channels 5 and 6 respectively
Select Channel: Rungs 1 and 2 select and load data for channels 7 and 8 respectively
52
Counter / Flow Meter Input Module
Stop Ladder: Rung 1 stops the ladder after all the data has been loaded for channels 1-8
Select Variable: Rungs 1, 2 and 3 select one of the following variables: Preset, Count Limit,
Rate Limit, M Factor, K Factor, and R Factor.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Select Variable: Rungs 1, 2 and 3 select one of the following variables: Preset, Count Limit,
Rate Limit, M Factor, K Factor, and R Factor.
Select the channel: When coil 3 is energized the counter is incremented, selecting the next
channel. When the accumulated value of the counter reaches 8 the ladder stops executing.
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Counter / Flow Meter Input Module
Pass the variable to the counter card: Rung 1 loads the current variable (Preset, Count, Limit, Etc.) in to a temporary holding
register. Rung 3 passes the value stored in the temporary holding register to the counter card.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Sample Configuration
Simple Bi-Directional Ring Counter:
The figure below demonstrates ring counter operation. In a ring counter operation, the count
value changes between zero and maximum. If, when counting up, the counter reaches the maximum
value, it rolls over to zero. If, when counting down, the counter reaches zero, it rolls under to the
maximum value.
Ring Counter
Maximum ValueZero
Rollover
Count Down
Count Up
This configuration will allow the user to count from a minimum value of 0 to the counter
maximum value. Each time a revolution has occurred the counter limit flag will be set. Your ladder
program may use this flag to increment an accumulator, thus counting revolutions. The flag must be
reset before another complete revolution occurs otherwise the accumulator can not be incremented.
A bi-directional ring counter is configured by setting the preset and limit to the same valueand
setting the roll over to zero and roll under to preset bits. Zero must always be the starting point and
the maximum value must always be positive.
The above figure illustrates counting in a clockwise direction. The ring counter may also count
in a counterclockwise direction by toggling the counter direction bit (bit 12 4x 2-9).
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Counter / Flow Meter Input Module
Sample Configuration
Using the Meter Proving Inputs
A ball proving system would use the meter proving input found on the module. The ball meaures the
flow velocity over a fixed length of line. When the ball crosses the starting point a momentary high
signal from a proximity switch starts the counter. When the ball crosses the prover exit another
proximity switch triggers causing the counter to stop. During the movement of the displacer the
meter count is monitored. Once complete the transit time is compared to the meter count. Any
difference in these values may be used to adjust the calibration (M factor) of the flowmeter.
The Meter Proving Inputs are designed for use with typical meter proving applications. These inputs
differ from the hardware inhibit/trigger inputs in the way the start and stop the counter.
Inhibit / Trigger Line
Meter Proving Input
The inhibit trigger line turns the counter on and off by holding the logic signal high or low. The
Meter Proving Input starts counter operation by applying a momentary high logic level signal
(pulse). The counter is stopped by applying another momentary high logic level signal (pulse).
Utilizing the meter proving input to start and stop count functions enables the user to count
pulses as fast as 20 microseconds to an accuracy of 1 count.
Here is an example wave form representing the start and stop transitions on the external gate
enable, and the associated pulses that the module would accumulate:
Given the above wave form, the module will begin counting the first positive going input pulse
after the external enable input goes low. The module will accumulate 4 counts in the channel count
register and stop when the external enable input goes high. The external enable line accommodates
5 Vdc, 12 Vdc and 24 Vdc signals and is pulled low internally .
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
58
Counter / Flow Meter Input Module
5Chapter
Maintenance and Diagnostics
This chapter describes maintenance and diagnostics for the Quantum counter module. Provided information
includes:
• Safety considerations during maintenance
• Preventive maintenance
• Internal diagnostics
• Startup testing
• Troubleshooting
• Module errors
Safety Considerations
Safety considerations are an important element of proper maintenance and diagnostic procedures. Actively
thinking about the safety of yourself and others, as well as the condition of your equipment, is of primary
importance. The following sections describe several safety concerns you should be aware of when
troubleshooting your control system.
ATTENTION Never reach into a machine to activate a switch, because unexpected motion
can occur and cause injury. Remove all electrical power at the main power disconnect switches before
checking electrical connections or inputs causing machine motion.
Indicator Lights
When the ready (module status) LED on the module is illuminated, it indicates that power is applied to the
module.
Activating Devices
When servicing the module, never reach into the machine to activate a device. Unexpected machine motion
can occur.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Standing Clear of the Equipment
When troubleshooting any system problem, have all personnel remain clear of the equipment. The problem
can be intermittent, and sudden unexpected machine motion can occur. Have someone ready to operate an
emergency stop switch in case it is necessary to shut off power.
Program Alteration
There are several possible causes of alteration to the user program, including extreme environmental
conditions, electromagnetic interference (EMI), improper grounding, improper wiring connections, and
unauthorized tampering. If you suspect that a program has been altered, check it against a previously saved
program on an EEPROM or UVPROM memory module.
Safety Circuits
Circuits installed on the equipment for safety reasons, such as over-travel limit switches, stop pushbuttons,
and interlocks, should always be hard-wired to the master control relay. These devices must be wired in series
so that, when any one device opens, the master control relay is de-energized, thus removing power to the
equipment. Never alter these circuits to defeat their function. Serious injury or machine damage can result.
Refer to your system’s installation and operation manuals for more information.
Preventive Maintenance
This section describes preventive maintenance procedures to help in maintaining your module.
ATTENTION The National Fire Protection Association (NFPA) recommends maintenance
procedures for electrical equipment. Refer to article 70B of the NFPA for general safety-related work
practices.
Maintaining Printed Circuit Boards
The printed circuit boards of your module must be protected from dirt, oil, moisture, and other airborne
contaminants. To protect these boards, install the PLC system in an enclosure suitable for its operating
environment. Keep the interior of the enclosure clean, and whenever possible, keep the enclosure door closed.
Inspecting Terminal Connections
Regularly inspect the module terminal connections for tightness. Loose connections can cause the module or
PLC system to malfunction, or damage module or system components.
WARNING Before inspecting connections, always ensure that incoming power is off.
Failure to observe this precaution can cause personal injury and equipment damage.
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Counter / Flow Meter Input Module
Internal Diagnostics
The module performs internal diagnostics at both the module and channel levels of operation. When
detected, module error conditions are immediately indicated by the ready (module status) LED. Channel
errors are reported at their respective LEDs.
The module reports error conditions to the PLC. Channel error conditions are reported in the module’s input
data table. Module hardware errors are typically reported in the PLC I/O status file. Refer to your controller
manual for details.
When a fault condition is detected, the PLC sets analog outputs to zero. The data in the output data file is
retained during the fault. Once the fault condition is corrected and the major fault bit in the controller is
cleared, the retained data is sent.
Fault LED:
Number of Blinks:Fault:
OffNo Faults
1Dual Port RAM fault.
2FPGA init fault.
3FPGA1 program fault.
4FPGA2 program fault.
5FPGA1 fault.
6FPGA2 Fault.
7Watchdog Fault.
8ROM CRC fault.
9EEPROM fault.
10Both Speed mode and Autosequence mode selected (Mutually exclusive
Power-Up Diagnostics
At module power-up, a series of internal diagnostic tests is performed. These diagnostic tests must be
successfully completed for the ready (module status) LED to be illuminated. If the tests are not successful,
the ready LED remains off and a module error results and is reported to the PLC.
Channel Diagnostics
When an input channel is enabled, the module performs a diagnostic check to see that the channel has been
properly configured. In addition, the channel is tested on every scan for configuration errors, hardware errors,
and roll-over/under conditions.
If a channel configuration word is improperly defined, the module disables the channel.Common reasons for
configuration errors are:
On SolidNo Faults
1Frequency Limit Out of Range
2Counter Limit Out of Range.
3Counter Preset Out of Range.
4Channel Pair Gate Enable Configuration Mismatch.
5Quadrature Pair Configuration Mismatch.
6Both Stop on 0 and Stop on Limit selected (Mutually exclusive).
7Both Roll Over to Preset and Roll Under to Preset (Mutually exclusive).
8Unrecognized parameter type.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Startup Testing
This section presents testing procedures recommended for use at module startup to verify correct installation and
configuration.
Physical Inspection
1. Inspect the module to ensure that all wire connections are correct and secure and that no wires are
missing or broken.
2. Ensure that the shield for the cable used to wire your module is properly grounded. Refer to Chapter 2,
“Installation and Wiring” for more information.
3. Ensure that the removable terminal block on your module is secure.
4. Before enabling a channel (through your ladder program), ensure that you have chosen a proper input
range for the input signal. Failure to observe this precaution can cause improper module operation or
equipment damage.
5. Verify that the rack power supply is properly connected to the PLC.
6. Turn on the PLC and ensure that it powers up properly. See the Quantum Automation Series Hardware
Reference Guide for more information.
7. Verify that the module ready LED (green) turns on to indicate power to the module and completion of
the self-test. If the LED does not turn on, note the blink code as this indicates the fault condition.
8. Ensure that the active LED is illuminated to indicate that the module is communicating with the rack.
If not, bus communication has not been established. Be sure the module is properly installed.
9. Check the channel LEDs for any errors.
10. If the module fault LED is red, it indicates a self-test error or fatal hardware error. Refer to the blink
code tables for specific fault conditions.
Health Status Test (ModSoft)
1. In ModSoft, access the I/O map screen and ensure that the module description, slot location, and
register assignments are correct.
2. Use the I/O map screen to verify that the module is recognized and reported as healthy. If you find an
asterisk in front of the module name, the rack does not recognize the module.
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Counter / Flow Meter Input Module
Health Status Test (Concept)
1. In Concept, access the I/O configurator and ensure that the module description, slot location, and
register assignments are correct.
2. Use the controller status to verify that the module is recognized and reported as healthy. If you find an
asterisk in front of the module name, the rack does not recognize the module. To correct the problem,
see troubleshooting.
Register Operation Test
1. Check the count rate in the input register for a signal indication. If status bit 14 (counter input state) is
set to 0 and status bit 4 (zero rate) is set to 1, no signal is indicated. See “
2. It is a good idea to ensure that the 4X register and the 3X+3 Status word are set up properly. As a quick
check, disable all ladder programming and set the 4X register to 0000 hex.
No Signal Indication”.
Troubleshooting
Ready LED Does Not Illuminate
Possible Causes
The most probable reasons for the LED not illuminating are:
• The PLC system is not receiving power from its power supply.
• The module is located in a defective PLC rack slot.
• The module is defective.
Corrective Action
1. Make sure that the PLC is receiving power.
2. Reinstall the module in the rack according to instructions in chapter 2, “Installation and Wiring.”
3. If the ready LED still does not illuminate, try it in another PLC rack slot.
4. If you are still unable to start the module, call your local distributor.
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Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Active LED Does Not Illuminate
Possible Causes
The module is not communicating with the PLC rack.
Corrective Action
1. Deinstall the module. See chapter 2, “Installation and Wiring.”
2. Place the rack in run mode.
3. Reinstall the module in the rack. See chapter 2, “Installation and Wiring.”
Fault LED Does Not Illuminate
Possible Causes
• Module self-test error
• Fatal hardware error
Corrective Action
Contact your local distributor.
Fault LED Blinking Red
Possible Causes
Type of self-test error. Possible codes are indicated in the Diagnostic LEDs section of chapter 1, “Overview.”
Corrective Action
Verify module configuration information.
No Signal Indication
There is no indication of a signal in the input register count rate word. If status bit 3x+1 - 3x+8 (Bit 14)
(counter input state) is high and status bit 4 (rate zero) is high.
Possible Causes
If you have an open collector output or a relay or contact type output, you might require a 1 to10 kohm pullup / pull-down resistor.
64
Counter / Flow Meter Input Module
Corrective Action
If necessary, install a pull-down resistor between the channel input and channel common or a pull-up resistor
to a positive voltage source.
Module Not Recognized by Rack (ModSoft)
Possible Causes
• Module not correctly installed.
• Module runtime files not correctly installed.
Corrective Action
1. Reinstall the module in the rack. See chapter 2, “Installation and Wiring.”
2. Check the I/O map screen in ModSoft to see if the problem still exists.
3. If the module name is still marked with an asterisk (indicating a health status problem), select the
module name using the Shift+? key.
4. If the module is not listed at all, reinstall the ModSoft runtime files. See software installation
instructions in chapter 3, “Module Configuration.”
counter limit/K scale factorcounter limit/K scale factor
counter maximum flagcounter maximum flag
counter maximum flag 3-19
counter maximum flagcounter maximum flag
counter maximum statecounter maximum state
counter maximum state 3-24
counter maximum statecounter maximum state
counter modecounter mode
counter mode 1-2
counter modecounter mode
counter output statecounter output state
counter output state 3-23
counter output statecounter output state
counter prcounter pr
counter pr
counter prcounter pr
counter prcounter pr
counter pr
counter prcounter pr
counter zcounter z
counter z
counter zcounter z
counter zcounter z
counter z
counter zcounter z
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tete
te 3-24
tete
gg
g 3-19
gg
tete
te 3-25
tete
ss
s 3-1
ss
3-15
3-24
e
ee
d enad ena
d ena
d enad ena
3-24
3-17
eset staeset sta
eset sta
eset staeset sta
eset/M scale feset/M scale f
eset/M scale f
eset/M scale feset/M scale f
o fo f
lala
o f
la
o fo f
lala
o stao sta
o sta
o stao sta
tete
3-26
te
tete
3-1, 3-2
actoractor
actor 3-20
actoractor
Counter / Flow Meter Input Module
DD
D
DD
dada
ta fta f
oror
mama
da
ta f
dada
ta fta f
dada
ta rta r
da
ta r
dada
ta rta r
dada
ta wta w
da
ta w
dada
ta wta w
diagnosticsdiagnostics
diagnostics 5-1, 5-3
diagnosticsdiagnostics
channel5-4
power-up5-3
digdig
ital fital f
dig
ital f
digdig
ital fital f
dodo
wnloading confwnloading conf
do
wnloading conf
dodo
wnloading confwnloading conf
EEPREEPR
EEPR
EEPREEPR
electrelectr
electr
electrelectr
electrelectr
electr
electrelectr
enen
virvir
en
vir
enen
virvir
enen
virvir
en
vir
enen
virvir
erer
rr
oror
er
r
or
erer
rr
oror
channel
codes5-11
configuration1-11, 5-12
tsts
or
ma
ts 1-2
oror
mama
tsts
ee
gg
isterister
g
ister
gg
isterister
oror
dd
or
d 1
oror
dd
ilterilter
ilter 1
ilterilter
EE
E
EE
tic disctic disc
tic disc
tic disctic disc
ss
s 3-1
ss
icaica
ica
icaica
igurigur
igur
igurigur
harhar
har
harhar
e
ee
OMOM
OM 3-20, 3-21, 3-22
OMOM
ical specifical specif
ical specif
ical specifical specif
ostaosta
osta
ostaosta
onmentonment
onment 2-7
onmentonment
onmental specifonmental specif
onmental specif
onmental specifonmental specif
ss
s
ss
4-4
aa
tion dation da
a
tion da
aa
tion dation da
tionstions
tions A-3
tionstions
gg
ee
g
e 2-3
gg
ee
icaica
tionstions
ica
tions A-2
icaica
tionstions
tata
ta 4-4
tata
67
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
critical5-9
data definition5-10
extended error information field5-11
general common hardware5-11
hardware-specific5-12
module5-9
module error field5-10
noncritical5-9
reporting5-3
health status (Concept)
health status (ModSoft)5-5
register operation5-6
startup5-4
trtr
ouboub
leshootingleshooting
tr
oub
leshooting 5-6
trtr
ouboub
leshootingleshooting
active LED not lighted5-7
fault LED blinking red5-8
fault LED not lighted5-7
module not recognized5-9
no signal5-8
open circuit5-8
ready LED not lighted5-6
UU
U
UU
ULUL
UL 2-1, 2-6
ULUL
5-6
71
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
unidirunidir
ectional operectional oper
unidir
ectional oper
unidirunidir
ectional operectional oper
VV
V
VV
vv
erer
ifying cifying c
v
er
ifying c
vv
erer
ifying cifying c
WW
W
WW
wiringwiring
wiring
wiringwiring
zz
z
zz
2-9, 2-11
documents2-3
ZZ
Z
ZZ
oom room r
ee
e
ee
setup
gg
g
gg
oom r
oom room r
hannel confhannel conf
hannel conf
hannel confhannel conf
isterister
ister
isterister
ss
s 3-1
ss
aa
tiontion
a
tion 3-7
aa
tiontion
igurigur
igur
igurigur
aa
a
tion
aa
tiontion
tiontion
4-4
ModSoft 3-10
setup using Concept3-12
72
Counter / Flow Meter Input Module
Glossary
The following terms and abbreviations are used throughout this manual.
A/D converter The analog-to-digital converter used in the module. The converter produces a digital value
with a magnitude that is proportional to the magnitude of an analog input signal.
attenuation Reduction in the magnitude of a signal as it passes through a system.
bus connector A 16-pin male and female connector that provides electrical interconnection among modules in
a controller system.
channel Analog input interface available on the terminal block of a module. Each channel is configured for
connection to an input device, and has its own configuration and image input data words.
channel update time The time required for the module to sample and convert the input signals of one
enabled input channel and update the data word.
common mode voltage Voltage difference between the negative terminal and analog common during normal
differential operation.
common mode voltage range For analog inputs, the largest voltage difference allowed between either the
positive or negative terminal and analog common during normal differential operation.
configuration word Word containing the channel configuration information needed by the module to set up
and operate each channel.
cutoff frequency The frequency at which the input signal is attenuated 3 dB by a digital filter. Frequency
components of the input signal that are below the cutoff frequency are passed with under 3 dB of attenuation
for low-pass filters.
data word A 16-bit integer that represents the value of an input channel. The data word is valid only when the
channel is enabled and there are no channel errors. When the channel is disabled, the channel data word is
cleared (set to 0).
digital filter A low-pass noise filter incorporated into an A/D converter. The filter provides high-rejection
notches at frequencies that are integral multiples of the filter cutoff frequency. The notches are used for rejecting
AC power line noise and higher frequency noise.
effective resolution The number of bits in a channel configuration word that do not vary due to noise.
filter frequency User-selectable frequency for a digital filter.
full scale The magnitude of input over which normal operation is permitted.
gain drift Change in full-scale transition voltage measured over the operating temperature range of the module.
73
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
input data scaling Data scaling that depends on the data format selected for a channel configuration word.
LSW Least significant word.
module update time The time required for the module to sample and convert the input signals of all enabled
input channels and make the resulting data values available to the processor.
MSW Most significant word.
multiplexer A switching system that allows several input signals to share a common A/D converter.
normal operating range Configured range for input signals.
overall accuracy The worst-case deviation of the digital representation of the input signal from the ideal over
the full input range. Overall accuracy is expressed in percent of full scale.
sampling time The time required by an A/D converter to sample an input channel.
74
Counter / Flow Meter Input Module
75
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
AAppendix
Specifications
This appendix lists the specifications for the Quantum counter module.
SpecificationValue
Data Registers8 - 3X registers 10 - 4X registers 8 - zoom (parameter) registers
LED Indicators:
1 Green LED, Module StatusThe module status LED indicates the status of the power-up self-test. The LED is on
when the module is ready. Any self-test error is indicated with a blink code.
8 Green LEDs, Channel StatusEach channel status LED indicates that the
corresponding channel is active.
Terminal Block40-pin removable connector
Wire SizeOne 14 AWG wire or two 22 AWG wires
Backplane InterfaceStandard ASIC and dual port memory interface
Compatibility:
HardwareAll Quantum PLC racks
SoftwareModSoft, Concept, and ProWorks
DimensionsStandard slot configuration (using a standard single-slot plastic case, and existing
shipping box)
Shipping W eight300 g (.65 lb)
Environmental Specifications
Environmental testing is in accordance with the standards specified or in accordance with Schneider Alliance
IPA2000/3000 or equivalent. For reference see SA IAP 2000, Mechanical Environmental Specifications #043
500021, revision 1.02.
Test DescriptionStandard Class/Limit
Mechanical:
Vibration of Unpackaged ProductsIEC 68-2-6 5g at 10-500 Hz per product
Shock of Unpackaged Products Operating15 g peak acceleration, 11±1 ms pulse width
Non-operating50 g peak acceleration, 11±1 ms peak width
Temperature/Humidity:
Operating Temperature0 to 60°C (32 to 131 °F), min.
Storage Temperature-40 to 85 °C (-40 to 185°F)
Humidity-T emperatureIEC 68-2-3 0 to 95 percent RH noncondensing at 60 °C
Altitude2000 meters fully operational
Electrical:
Electrostatic DischargeIEC 801-2
Surge Transient Susceptibility
Radiated EMI SusceptibilityIEC 801-3
Dielectric Withstand
Conducted EMI Susceptibility
Conducted EmissionsCISPR 11Class A
76
Counter / Flow Meter Input Module
Electrical Fast TransientIEC 801-4
Radiated EmissionsCISPR 1 1Class A
Surge ImpulseIEC 801-5
Conducted ImmunityIEC 801-6
Fast Surge ImmunityEN61000-4-5
Voltage Dropouts (V ariation and Dips) EN61000-4-11
Electrical Specifications
SpecificationValue
Configuration8 channels of differential counter inputs 4 channels of quadrature encoding 8 input
enable control lines
Input ModesDC counter, AC flow meter
Voltage Range:AC 0-75V5VDC12VDC24VDC
1
VIL
VIH+50 mVpk3.5V9V10.5
Vmax CE±75Vrms±75V±75V±75V
Current Range6 mA max. at 75VDC
Input Impedance15 kohm
Counter Speed:
DC Inputs 5V, 12V, 24V, AC0 to 50 kHz
Input Frequency:
DC Inputs0 to 50 kHz (count mode)
AC Inputs0 to 50 kHz (count mode)
Counter Enable Input:
Meter Proving Input:
Minimum Pulse Time:
External Enable/DisableEnable and disable setup time = 10 us
Channel Update Time:
No Scaling<1 ms per channel, worst case
Scaling<1.5 ms per channel
Accuracy:
Frequency Mode±0.8 percent at 50 kHz, +/- 1 Hz Avg. Mode / .01 percent Resolution
Maximum Count ValueLow range 65 K High range 16 M
Fault DetectionOver-range and under-range status bits, for all current and voltage modes
Data Format:
Counter modeMaximum binary value 16,777,216
Frequency modeMaximum binary value 65,536
Isolation:
Channel to Rack1000VDC continuous, optical and magnetic
Channel to Channel0 VDC
-50 mV1V3V6
VIL1.0V min.
VIH3.5V max.
Vmax45V
Input Impedance14 kohm
VIL1V min.
VIH3.5V max.
Vmax45V
Input Impedance14 kohm
77
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
Input ProtectionMax. input voltage ±75VDC continuous, 106VAC peak
Max. input current less than or equal to 6 mA at 75VDC
Power Requirements:
Internal Rack +5VLess than 650 mA - 8 channel
Less than 470 mA - 4 channel
Standards Compliance
The following certifications will be obtained:
• UL 508.
• CUL and Class 1, Division II (CSA equivalent).
• CE compliance with EN 61010-1 and EN 61131-2, EN50081-2, EN50082-2. This allows for the appli-
cation of the CE mark and will include the low-voltage directive (LVD).
78
Counter / Flow Meter Input Module
79
Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
80
Spectrum Controls Support
If you need technical assistance, please review the information in chapter 5, “Maintenance and Diagnostics.”
If you still have questions, call your local distributor of Spectrum Controls products.
Note that your module contains electronic components that are susceptible to damage from electrostatic
discharge (ESD). An electrostatic charge can accumulate on the surface of ordinary plastic or cushioning
material. In the unlikely event that the module should need to be returned to Spectrum Controls, please
ensure that it is enclosed in approved ESD packaging (such as static shielding or metallic bag or a black
conductive container). Spectrum Controls reserves the right to void the warranty on any unit that is
improperly packaged for shipment.
For further assistance, please call the Spectrum Controls Customer Satisfaction department at (425) 7469481, from 8:00 am to 5:00 pm Pacific Standard Time.