Rockwell Automation 1769-HSC User Manual

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User Manual

Compact High-speed Counter Module

Catalog Number

1769-HSC

Important User Information

Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication your local Rockwell Automation sales office or online at

http://www.rockwellautomation.com/literature/) describes some

important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which can lead to personal injury or death, property damage, or economic loss.

SGI-1.1 available from

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

SHOCK HAZARD: Labels can be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage can be present.

BURN HAZARD: Labels can be on or inside the equipment, for example, a drive or motor, to alert people that surfaces can reach dangerous temperatures.

IMPORTANT

Allen-Bradley, Rockwell Software, Rockwell Automation, RS Logix, R SLogix 5000, RSLogix 500, CompactLogix, Compact I/O, ControlLogix, MicroLogix , and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Identifies information that is critical for successful application and understanding of the product.

Summary of Changes

This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph.

New and Updated Information

This table contains the changes made to this revision.

Topic Pages

Changes were made to differentiate between the available high speed counters modules.

31, 32, 37, 40, 66, 70, 72, 73, 74, 76, 80, 81, 84, 85, 86, 88, 89, 95, 96, 97, 98, 100, 101, 105, 107, 121

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 3

Summary of Changes

Notes:

4 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Preface

Module Overview

Module Operation

Packaged Controller Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 1

Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Chapter 2

Counter Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Module Operation Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Number of Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Summary of Available Counter Configurations . . . . . . . . . . . . . . . . . . . . . 18

Input Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Operational Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Direction Inhibit and Direction Invert Output Control Bits . . . . . 21

Pulse/External Direction Mode Selection. . . . . . . . . . . . . . . . . . . . . . . 22

Pulse/Internal Direction Mode Selection . . . . . . . . . . . . . . . . . . . . . . . 23

Up and Down Pulses Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 24

X1 Quadrature Encoder Mode Selection . . . . . . . . . . . . . . . . . . . . . . . 25

X2 Quadrature Encoder Mode Selection . . . . . . . . . . . . . . . . . . . . . . . 26

X4 Quadrature Encoder Mode Selection . . . . . . . . . . . . . . . . . . . . . . . 26

Input Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Counter Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Linear Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Ring Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Modifying Count Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Counter Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Z Input Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Inhibit and Invert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Direct Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Preset/Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Rate/Timer Functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Pulse Interval Rate Calculation Method . . . . . . . . . . . . . . . . . . . . . . . . 32

Cyclic Rate Calculation Method (current rate). . . . . . . . . . . . . . . . . . 32

Hysteresis Detection and Configuration. . . . . . . . . . . . . . . . . . . . . . . . 33

Scalar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Rate Valid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Rate Method Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 5

Table of Contents

Installation and Wiring

Output Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Masks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Overcurrent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Safe State Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Output Control Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Readback/Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Chapter 3

Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Selecting a Location to Reduce Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Protect the Circuit Board from Contamination . . . . . . . . . . . . . . . . . 48

Power Supply Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

System Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Mount the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Minimum Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

DIN Rail Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Replace the Module within a System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Field Wiring Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Considerations for Reducing Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Remove and Replace the Terminal Block . . . . . . . . . . . . . . . . . . . . . . . 55

Wire the Finger-safe Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Wire the Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Terminal Door Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Terminal Block Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Wire Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Chapter 4

Module Configuration, Output, and Input Data

6 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Configure the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Configuration Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

General Configuration Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Filter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Program Mode and Program State Run . . . . . . . . . . . . . . . . . . . . . . . . . 76

Output Program Value (Out0ProgramValue through

Out3ProgramValue) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Output Fault Mode and Output Fault State Run . . . . . . . . . . . . . . . . 77

Output Fault Value (Out0FaultValue through Out3FaultValue) . 78

Counter Maximum Count (CtrnMaxCount) . . . . . . . . . . . . . . . . . . . 78

Counter Minimum Count (CtrnMinCount) . . . . . . . . . . . . . . . . . . . 79

Counter Preset (CtrnPreset). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Counter Hysteresis (CtrnHysteresis) . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Counter Scalar (CtrnScalar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Table of Contents

Cyclic Rate Update Time (CtrnCyclicRateUpdateTime) . . . . . . . . 81

Configuration Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Range High Limit (Range0To11[n].HighLimit) and Range Low

Limit (Range0To11[n].LowLimit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Range Output Control (Range0To11[n].OutputControl). . . . . . . 85

Range Configuration Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Output Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Output on Mask (OutputOnMask.0 through OutputOnMask.15). . 91 Output Off Mask (OutputOffMask.0 through OutputOffMask.15). 91

Range Enable (RangeEn.0 through RangeEn.15) . . . . . . . . . . . . . . . 91

RBF - Reset Blown Fuse (ResetBlownFuse) . . . . . . . . . . . . . . . . . . . . . 92

Control Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Range High Limit or Direct Write Value

(Range12To15[n].HiLimOrDirWr). . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Range Low Limit (Range12To15[n].LowLimit) . . . . . . . . . . . . . . . . 95

Range Output Control (Range12To15[n].OutputControl). . . . . . 96

Range Configuration Flags (12To15) . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Input Array. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Input State (InputStateA0 through InputStateZ1) . . . . . . . . . . . . . 101

Readback (Readback.0 through Readback.15). . . . . . . . . . . . . . . . . . 101

Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Range Active (RangeActive.0 through RangeActive.15). . . . . . . . . 103

Current Count (Ctr[n].CurrentCount). . . . . . . . . . . . . . . . . . . . . . . 104

Stored Count (Ctr[n].StoredCount). . . . . . . . . . . . . . . . . . . . . . . . . . 104

Current Rate (Ctr[0].CurrentRate to Ctr[3].CurrentRate) . . . . . 105

Pulse Interval (Ctr[0].PulseInterval and Ctr[1].PulseInterval). . . 105

Status Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Diagnostics and Troubleshooting

Chapter 5

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Stand Clear of the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Program Alteration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Safety Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Module Operation versus Counter Operation . . . . . . . . . . . . . . . . . . . . . 111

Counter Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Module Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Power-up Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Configuration Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Post Configuration Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Non-critical versus Critical Module Errors . . . . . . . . . . . . . . . . . . . . . . . . 113

Non-critical Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Critical Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 7

Table of Contents

Specifications

Program a 1769-HSC Module, CompactLogix Controller, and 845F Incremental Encoder with RSLogix 5000 Software

Module Error Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Module Error Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Extended Error Information Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Appendix A

Throughput and Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Rate Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Temperature Derating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Appendix B

System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

845F Encoder Wiring to the 1769-HSC Module. . . . . . . . . . . . . . . . . . . 132

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Add a 1769-HSC Module to a CompactLogix System . . . . . . . . . . . . . . 133

Configure the 1769-HSC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Monitor the Current Count and Verify Output Operation . . . . . . . . . 140

Program a 1769-HSC Module, MicroLogix 1500 Controller, and 845F Incremental Encoder with RSLogix 500 Software

Programming Quick Reference

History of Changes

Glossary

Index

Appendix C

System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

845F Encoder Wiring to the 1769-HSC Module. . . . . . . . . . . . . . . . . . . 142

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Add a 1769-HSC Module to a MicroLogix 1500 System. . . . . . . . . . . . 143

Configure Your 1769-HSC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Monitor the Current Count and Verify Output Operation . . . . . . . . . 148

Appendix D

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Appendix E

1769-UM006C-EN-P, November 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

8 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Preface

Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Compact I/O and/or MicroLogix 1500 or CompactLogix controllers.

Packaged Controller Functionality

Additional Resources

Both the 1769-L24ER-QBFC1B and 1769-L27ERM-QBFC1B packaged controllers provide the same high-speed counter (HSC) functionality as the 1769-HSC except for the input frequency.

While many features of the 1769-HSC module are available with the embedded high-speed counters, some of the features of the 1769-HSC module are not available with the embedded high-speed counters of the CompactLogix packaged controllers. Features not available on the embedded high-speed counters include rate/timer functions and limited output range control (4 ranges instead of the 16 available with the 1769-HSC module). Specific differences between the 1769-HSC module and the packaged controller functionality are noted throughout this manual.

The CompactLogix Packaged Controllers Quick Start and User Manual, publication

IASIMP-QS010, provides wiring diagrams, configuration

procedures, and tag descriptions for the embedded high-speed counters.

These documents contain additional information concerning related products from Rockwell Automation.

Resource Description

CompactLogix System User Manual, publication 1769-UM007

Compact I/O 1769-ADN DeviceNet Adapter User Manual, publication 1769-UM001

Compact I/O Selection Guide, publication

CompactLogix Packaged Controllers Quick Start and User Manual, publication

MicroLogix 1500 Programmable Controllers User Manual, publication

MicroLogix Programmable Controllers Family Selection Guide, publication 1761-SG001

Industrial Automation Wiring and Grounding Guidelines, publication

Product Certifications website,

IASIMP-QS010

1764-UM001

1770-4.1

http://www.ab.com Provides declarations of conformity,

1769-SG002 Describes the 1769 Compact I/O modules.

Describes how to install, use, and program your CompactLogix controller.

Describes how to install, and use the 1769-ADN DeviceNet adapter.

Provides a quick start and information on how to install, use, and program your CompactLogix packaged controller.

Describes how to install, use, and program your MicroLogix 1500 controller.

Provides an overview of the MicroLogix 1500 system.

Provides general guidelines for installing a Rockwell Automation industrial system.

certificates, and other certification details.

You can view or download publications at

http://www.rockwellautomation.com/ literature/. To order paper copies of technical documentation, contact your local

Allen-Bradley distributor or Rockwell Automation sales representative.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 9

Preface

Notes:

10 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Chapter 1

Module Overview

The 1769-HSC module is an intelligent counter module with its own microprocessor and I/O that is capable of reacting to high-speed input signals. The module can interface with up to two channels of quadrature or four channels of pulse/count inputs. The signals received at the inputs are filtered, decoded, and counted. They are also processed to generate rate and time-between-pulses (pulse interval) data. Count and rate values can then be used to activate outputs based on user-defined ranges.

IMPORTANT

For the 1769-L23E-QBFC1B and 1769-L23-QBFC1B packaged controllers HSC functionality, there is no processing to generate rate or timebetween-pulses data. Only count data is used to activate outputs based on ranges.

The module counts pulses at up to 1 MHz (250 kHz for the packaged controllers) from devices such as proximity switches, pulse generators, turbine flowmeters, and quadrature encoders. The module has four on-board, high-speed switching outputs. These outputs can be under user program or direct module control, based on the count value or frequency.

The 1769-HSC module is compatible with MicroLogix 1500 packaged controllers (1764-LSP/C and 1764-LRP/C modules, firmware revision 6.0 and later), CompactLogix controllers (generic profiles required for firmware revisions prior to 11.0), and the 1769-ADN/B DeviceNet adapter.

Topic Page

Counters 12

Inputs 12

Outputs 12

Hardware Features 13

Status Indicators 14

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 11

Chapter 1 Module Overview

Counters

Inputs

The module is capable of counting pulses in either direction (forward, reverse, up, down). A maximum of four pulse counters (or two quadrature counters) are available. Each 32-bit counter can count to ±2 billion as a ring or linear counter. In addition to providing a count value, the module provides a rate value up to ±1 MHz, dependent upon the type of input (the L23 packaged controller’s HSC module functionality does not provide rate values). The rate value (as modified by scalar) is the input frequency to the counter. When the count value is increasing, the rate value is positive. When the count value is decreasing, the rate value is negative.

Counters can also be reset or preset to any value between user-defined minimum and maximum values. Preset can be accomplished from the user program or at a Z-input event. The Z-input can also generate a capture value and/or freeze (gate) the counters.

The module features six, high-speed differential inputs labeled ±A0, ±B0, ±Z0, ±A1, ±B1, and ±Z1. These inputs support two quadrature encoders with ABZ inputs and/or up to four discrete count inputs. In addition, x1, x2, and x4 encoder configurations are provided to fully use the capabilities of high resolution quadrature encoders. The inputs can be wired for standard differential line driver output devices, as well as single-ended devices such as limit switches, photo eyes, and proximity sensors. Inputs are optically isolated from the bus and from one another, and have an operational range of 2.6…30V DC.

Outputs

Sixteen outputs are available: four on-board (real) and twelve virtual bits. All 16 outputs can be individually controlled by the module or by the user control program.

The four on-board (real) outputs are DC sourcing, powered by a user-supplied (5…30V DC) power source. These outputs are electronically protected from current overloads and short-circuit conditions. Overcurrent status is monitored and fed back to the user program. Output states are determined by a combination of output data, configuration data, ranges, and overcurrent status.

Output Control Example on page 44 for a description of how the module

See determines output status.

12 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Overview Chapter 1

Hardware Features

The module’s hardware features are illustrated in Figure 1. Refer to Chapter 3 on

page 45 for detailed information on installation and wiring.

For information about the packaged controllers’ hardware features, see the CompactLogix Packaged Controllers Quick Start and User Manual, publication

Figure 1 - Hardware Features

A0 B0

IN OUT

A1 B1Z0Z1

High Speed Counter

Do Not Remove RTB Under Power

Unless Area is Non-Hazardous

Ensure Adjacent Bus Lever is Unlatched/Latched Before/After Removing/Inserting Module

IASIMP-QS010.

DANGER

OUT DC +5V/24V

OUT 0

OUT 1

OUT 2

OUT 3

OUT DC

COM

A0+

A0-

B0+

B0-

Z0+

Z0-

A1+

A1-

B1+

B1-

Z1+

Z1-

1769-HSC

A0 B0

IN OUT

A1 B1Z0Z1

High Speed Counter

Item Description

1 Bus lever

2a Upper panel mounting tab

2b Lower panel mounting tab

3 Module status indicators (6 Input, 4 Output, 1 Fuse, 1 OK)

4 Module door with terminal identification label

5 Removable terminal block (RTB) with finger-safe cover

5a RTB upper-retaining screw

5b RTB lower-retaining screw

6a Movable bus connector (bus interface) with female pins

6b Stationary bus connector (bus interface) with male pins

7 Nameplate label

8a Upper tongue-and-groove slots

8b Lower tongue-and-groove slots

9a Upper DIN-rail latch

9b Lower DIN-rail latch

10 Write-on label for user identification tags

45271

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Chapter 1 Module Overview

Status Indicators

0 2 FUSE

OUT

AO BO ZO

A1 B1 Z1

High Speed Counter

45272

The front panel of the 1769-HSC module has a total of 12 status indicators.

For information about the packaged controllers’ status indicators, see the CompactLogix Packaged Controllers Quick Start and User Manual, publication

Table 1 - Diagnostic Indicators

Indicator Status Description

0 OUT Amber ON/OFF logic status of output 0

1 OUT Amber ON/OFF logic status of output 1

2 OUT Amber ON/OFF logic status of output 2

3 OUT Amber ON/OFF logic status of output 3

FUSE Red Overcurrent

OK Off No power is applied

A0 Amber ON/OFF status of input A0

A1 Amber ON/OFF status of input A1

B0 Amber ON/OFF status of input B0

B1 Amber ON/OFF status of input B1

Z0 Amber ON/OFF status of input Z0

Z1 Amber ON/OFF status of input Z1

ALL ON Possible causes for all status indicators to be On include the following:

IASIMP-QS010.

Red (briefly) Performing self-test

Solid green OK, normal operating condition

Flashing green OK, module in Program or Fault mode

Solid red or amber Hardware error. Cycle power to the module. If problem persists,

Flashing red Recoverable fault. Reconfigure, reset, or perform error recovery.

• Bus error has occurred—controller hard fault. Cycle power.

• During load upgrade of controller—normal operation. Do not cycle power during the

load upgrade.

• All indicators flash on briefly during powerup—normal operation.

replace the module.

Non-critical versus Critical Module Errors on page 113. The

See OK indicator flashes red for all of the error codes in the

Configuration Error Codes table on page 117.

14 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Chapter 2

Module Operation

This chapter details the operation of the 1769-HSC module. We strongly suggest that you review this information before configuring your module.

Topic Page

Counter Defaults 15

Module Operation Block Diagrams 16

Number of Counters 18

Summary of Available Counter Configurations 18

Input Filtering 20

Operational Mode Selection 21

Input Frequency 28

Counter Types 28

Modifying Count Value 29

Rate/Timer Functionality 32

Output Control 36

Counter Defaults

When the module powers up, all output array and configuration array values are set to their default values. Refer to

Chapter 4 on page 65 or Appendix D on page 149 for default values. All input array values are cleared. None of the module data

is retentive through a power cycle.

Power cycling the module has the following effects:

• Clears stored counts and configurations

• Clears faults and flags

• Turns outputs off

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Chapter 2 Module Operation

Module Operation Block Diagrams

To provide an overview of the module operation, the block diagrams indicate relationships between module functions and configuration parameters.

Inputs

The following diagram illustrates how the inputs function.

Input

Filtering

Decoded

NumberOfCounters Operational Mode

Pulse Direction

DirInvert DirInhibit

Discrete Input State

Count

Min/Max and Linear/Ring

Overflow (ResetOvf)

Underflow (ResetUdf)

Store

CtrnConfig.StorageMode_0

RisingEdgeZ (reset REZ)

ZInhibit ZInvert

Enable

CtrnEn

CtrnConfig.StorageMode_1 InputStateZn ‘gating’

Direct Write

HiLimOrDirWr LoadDirectWrite ToThisCounter

Preset

CtrnSoftPreset CtrnConfig.StorageMode_2 and Rising Edge Z

Automatic PresetWarning (Preset Warning)

(1) Resets.

Pulse Interval

(1)

(2) Does not apply topackaged

controller.

(1)

(2)

See page 32 to determine howandwhen to use to calculate rates.

(3)

Rate

Update Time

Scalar

Hysteresis

Rate Valid

Overflow Underflow Preset Direct Write

(3) Does not apply to

packaged controller.

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Module Operation Chapter 2

Outputs

The following diagram illustrates how the outputs function.

Mode

Discrete

On Mask

Off Mask

Feedback

Object Value

Current Count

Current Rate

Ranges

High Limit

Low Limit

Type

Invert

Counter

Active

Output Control

Range Enable

Run

Program

Fault

Mode (Program/Fault/Run)

Overcurrent

Overcurrent Flags

OverCurrentLatchOff

(1)

Output Real Only)

ResetBlownFuse

Readback (Real and Virtual)

Hold Last State

Program Mode Fault Mode

User-defined Safe State

Program State Fault State

Safe State Run

Program State Run Fault State Run

Program to Fault Enable

(1) In the packaged controller, the Type parameter is fixed at Count because the

rate measurement is not supported.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 17

Chapter 2 Module Operation

Number of Counters

Summary of Available Counter Configurations

The module has six input points: A0, B0, Z0, A1, B1, and Z1. Through these inputs, the module can function with 1, 2, 3, or 4 counters depending upon the number of counters and the operational mode configuration of the input points.

The table summarizes the input configurations available for all counters, based on the number of counters.

No. of Counters Counter Operational Mode Gate or Preset Functionality

1 Counter 0 Any All

1 through 3 Not available

2 Counters 0 Any All

1 Any All

2 and 3 Not available

3 Counters 0 Any All

1 Pulse/Internal Direction All

2 Pulse/Internal Direction None

3 Not available

4 Counters 0 Pulse/Internal Direction All

1 Pulse/Internal Direction All

2 Pulse/Internal Direction None

3 Pulse/Internal Direction None

18 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

The counter options and operating modes are summarized in Figure 2.

Figure 2 - Summary of Available Counters

BO ZO

B1 Z1

Counter 0

Any Mode

Counter 1

Not Available

Counter 0

Any Mode

Counter 1

Pulse

Internal

1 Counter

3 Counters

Counter 2

Not Available

Counter 3

Not Available

(1)

Counter 2

Pulse

Internal

Counter 3

Not Available

(1)

Counter 0

Any Mode

Counter 1

Any Mode

Counter 0

Pulse

Internal

Counter 1

Pulse

Internal

2 Counters

4 Counters

Counter 2

Not Available

Counter 3

Not Available

(1)

Counter 2

Pulse

Internal

Counter

Pulse

Internal

(1)

45273

(1) The number of counters is defined by the NumberOfCounters bits in word 0 of the configuration array.

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Chapter 2 Module Operation

Input Filtering

In many industrial environments, high frequency noise can be inadvertently coupled to the sensor wires. The module can help reject some noise by means of

built-in filters. Inputs are filtered by means of user-selectable, low-pass filters set up during module configuration.

The available nominal pulse width filters are shown in the table.

Input Filter

A0, A1, B0, B1, Z0, Z1 5 ms, 500 s, 10 s, no filter

(7.1 ms, 715 s, 18.5 s, no filter for the packaged controller)

The filters are selected for each input in the Filter Selection word of the module’s configuration array.

TIP

Nom Filter Settings Max Guaranteed Blocked Pulse Width Min Guaranteed Pass Pulse Width

Pulse Width Equivalent

Frequency

No filter 1 MHz N/A N/A 250 ns 2 MHz

10 µs 50 kHz 7.4 µs 67.5 kHz 25 µs 20 kHz

500 µs 1 kHz 370 µs 1.35 kHz 1.25 ms 400 Hz

5 ms 100 Hz 3.7 ms 135 Hz 12.5 ms 40 Hz

(1)

Pulse Width Equivalent

The input state bits (InputStateA0 through InputStateZ1) reflect the filter’s inputs, but are NOT affected by the signal inhibit or invert operations described on page 30.

Frequency

(1)

Pulse Width Equivalent

Frequency

(1)

(1) Equivalent frequency assumes a perfect 50% duty cycle and are for reference purposes only. Hence, the no-filter setting is guaranteed to pass 4 MHz even though the

module’s maximum is 1 MHz. This lets the sensor and wiring to attenuate the pulse to 25% duty cycle while the module maintains pulse recognition.

Nom Filter Settings Max Guaranteed Blocked Pulse Width Min Guaranteed Pass Pulse Width

Pulse Width Equivalent

Frequency

No filter 250 kHz 0.83 µs 600 kHz 2.5 µs 200 kHz

18.5 µs 27 kHz 12.3 µs 40.5 kHz 28.6 µs 17.5 kHz

715 µs 700 Hz 495 µs 1.01 kHz 1.25 ms 400 Hz

7.1 ms 70 Hz 4.95 ms 101 Hz 12.5 ms 40 Hz

(1) Equivalent frequency assumes a perfect 50% duty cycle and are for reference purposes only. Hence, the no-filter setting is guaranteed to pass 4 MHz even though the

module’s maximum is 1 MHz. This lets the sensor and wiring to attenuate the pulse to 25% duty cycle while the module maintains pulse recognition.

(1)

Pulse Width Equivalent

IMPORTANT

Frequency

The built-in filters are simple, averaging, low-pass filters. They are

(1)

Pulse Width Equivalent

Frequency

(1)

designed to block noise pulses of width equal to the values presented in Table Filter Pulse Width and Frequency. Applying full amplitude, 50% duty cycle signals that are of frequency above the selected filter’s threshold frequency can result in an average value signal of sufficient amplitude to turn the input on. A transition from no input to the full amplitude, 50% duty cycle signal (or back to no signal) can result in inadvertent input transitions.

(1) Low-pass filters block frequencies above the threshold frequency.

20 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Operational Mode Selection

A count channel’s operational mode configuration selection determines how the A and B inputs cause a counter channel to increment or decrement. The six available mode selections are the following:

• Pulse/External Direction Input

• Pulse/Internal Direction Input

• Up and Down Pulse Input

• X1 Quadrature Encoder Input

• X2 Quadrature Encoder Input

• X4 Quadrature Encoder Input

IMPORTANT

The operational mode selection is limited by the number of counters selected.

• With two counters selected, Counters 0 and 1 can be assigned any

operational mode.

• With three counters selected, Counter 0 can be assigned any mode,

but Counters 1 and 2 can only be configured as pulse/internal direction.

• With four counters selected, all counters must be configured for the

pulse/internal direction mode.

See

Figure 2 on page 19 for the operational modes available for the counters,

based on the number of counters configured.

Direction Inhibit and Direction Invert Output Control Bits

These bits apply to all of the counter modes.

TIP

When set, the Direction Inhibit bit disables any physical input from affecting count direction.

When set, the Direction Invert bit changes the direction of the counter in all operational modes.

When Direction Inhibit is set, then Direction Invert is the direction.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 21

Chapter 2 Module Operation

Pulse/External Direction Mode Selection

In this mode, the B input controls the direction of the counter, as shown in Figure 3. If the B input is low (0), the counter increments on the rising edges of input A. If the input B is high (1), the counter decrements on the rising edges of input A.

TIP

Two Output Control bits let you modify the operation of the B input from your control program or during configuration. The Direction Inhibit bit, when set (1), disables the operation of the B input.

The Direction Invert bit, when set (1), reverses the operation of the B input, but only if the Direction Inhibit bit is not set. If the Direction Inhibit bit is set, then the Direction Invert bit controls counter direction:

• When the Direction Inhibit bit is set (1) and Direction Invert = 0, count

direction is up (forward).

• When the Direction Inhibit bit is set (1) and Direction Invert = 1, count

direction is down (reversed).

Figure 3 - Pulse/External Direction Mode (direction inhibit = 0, direction invert = 0)

Encoder or Sensor

Sensor or Switch

Count Pulse

Direction Control

Input A

Input B

Input Z

Direction Control High = Decrement Low = Increment

22 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Count

Table 2 - Pulse External Direction Counting

Module Operation Chapter 2

Direction Inhibit Bit

00 0 or open 1

01 0 or open -1

10 0 or open 1

11 0 or open -1

Direction Invert Bit

Input A (count) Input B (direction) Change in

Count Value

 1-1 0, 1,  Don’t care 0

 11 0, 1,  Don’t care 0

 1-1 0, 1,  Don’t care 0

See Direction Inhibit and Direction Invert Output Control Bits on page 21 for more information.

Pulse/Internal Direction Mode Selection

When the Pulse/Internal Direction mode is selected, the status of the Direction Invert bit, as controlled by the user program, determines the direction of the counter. The counter increments on the rising edge of the module’s A input when the Direction Invert bit is reset (0). The counter decrements on the rising edge of the A input when the Direction Invert bit is set (1).

Table 3 - Pulse Internal Direction Counting - Counters 0 and 1

Direction Inhibit Bit

Don’t care 0  Don’t care 1

Don’t care 1  Don’t care -1

Table 4 - Pulse Internal Direction Counting - Counters 2 and 3

Direction Inhibit Bit

Don’t care 0 Don’t care  1

Don’t care 1 Don’t care  -1

Direction Invert Bit

Input A (count) Input B Change in Count

Value

0, 1,  Don’t care 0

Input A Input B (count) Change in Count

Value

Don’t care 0, 1,  0

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 23

Chapter 2 Module Operation

Up and Down Pulses Mode Selection

In this mode, the counter channel increments on the rising edge of pulses applied to input A and decrements on the rising edge of pulses applied to input B. When set, the Direction Inhibit bit causes both A and B to increment. When set, the Direction Invert bit causes B to increment and A to decrement. When the Direction Invert and Direction Inhibit bits are both set, both A and B decrement.

TIP

When both inputs transition simultaneously or near simultaneously, the net result is no change to the count value.

Figure4-UpandDown Pulse Mode (direction inhibit = 0, direction invert = 0)

Input A

Input B

Input Z

Module

Incrementing Encoder

Decrementing Encoder or

Increment Pulse

(Input A)

Decrement Pulse

(Input B)

Count

Increment Pulse

(count up)

or Sensor

Decrement Pulse

(count down)

Sensor

24 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Table5-UpandDown Counting

Module Operation Chapter 2

Direction Inhibit Bit

00 0, 1,  1

01 0, 1,  -1

10 0, 1,  1

11 0, 1,  -1

Direction Invert Bit

Input A (count) Input B (direction) Change in

Count Value

0, 1,  -1  0

0, 1,  1  0

0, 1,  -1  0

X1 Quadrature Encoder Mode Selection

In this mode, when a quadrature encoder is attached to inputs A and B, the count direction is determined by the phase relation of inputs A and B. If A leads B, the counter increments. If B leads A, the counter decrements. In other words, when B is low, the count increments on the rising edge of input A and decrements on the falling edge of input A. If B is high, all rising transitions on input A are ignored. The counter changes value only on one edge of input A as shown in Figure 5.

TIP

When both A and B transition at the same time, instead of in the defined 90° phase separation, the quadrature signal is invalid.

For more information see

Direction Inhibit and Direction Invert Output

Control Bits on page 21 and their effect on Quadrature signals on page 27.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 25

Chapter 2 Module Operation

Figure 5 - Quadrature Encoder Modes (direction inhibit = 0, direction invert = 0)

Quadrature

Encoder

Forward Rotation

X1 Count

X2 Count

X4 Count

X2 Quadrature Encoder Mode Selection

Input A

Input B

Input Z

Reverse Rotation

The X2 Quadrature Encoder mode operates much like the X1 Quadrature Encoder except that the resolution is doubled as shown in Figure 5 on

page 26.

X4 Quadrature Encoder Mode Selection

The X4 Quadrature Encoder mode operates much like the X1 Quadrature Encoder except that the resolution is quadrupled, as shown in Figure 5 on

page 26.

Figure 6 shows how Direction Inhibit and Direction Invert affect the counter.

26 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Figure 6 - Operation Using Various Direction Inhibit and Direction Invert Settings

Quadrature

Encoder

Forward Rotation

DirectionInhibit = 0; DirectionInvert = 0

X1 Count Pulse

X2 Count Pulse

X4 Count Pulse

DirectionInhibit = 0; DirectionInvert = 1

Input A

Input B

Input Z

Reverse Rotation

X1 Count Pulse

X2 Count Pulse

X4 Count Pulse

DirectionInhibit = 1; DirectionInvert = 0

X1 Count Pulse

X2 Count Pulse

X4 Count Pulse

DirectionInhibit = 1; DirectionInvert = 1

X1 Count Pulse

X2 Count Pulse

X4 Count Pulse

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 27

Chapter 2 Module Operation

Input Frequency

Counter Types

Maximum input frequency is determined by the input configuration as shown in the table.

Input Configuration Input Frequency

1769-HSC Module

X4 Quadrature encoder 250 kHz 250 kHz

X2 Quadrature encoder 500 kHz 250 kHz

All other configurations 1 MHz 250 kHz

Input Frequency Packaged Controller

Each of the four possible counters can be configured to stop counting and set a flag at its limits (linear counter) or to rollover and set a flag at its limits (ring counter). A counter’s limits are programmed by the CtrnMaxCount and CtrnMinCount words in the module’s configuration array. Both types are described below.

Linear Counter

Figure 7 illustrates linear counter operation. In linear operation, the current count (Ctr[n].CurrentCount) value remains between, or equal to, the user-programmed minimum count (CtrnMinCount) and maximum count (CtrnMaxCount) values. If the Ctr[n].CurrentCount value goes above (>) or below (<) these values, the counter stops counting, and an overflow/underflow bit is set. The overflow/underflow bits can be reset using the CtrnResetCounterOverflow and CtrnResetCounterUnderflow bits.

Figure 7 - Linear Counter Diagram

Minimum Count Value

Underflow and Hold

Count Up

Counter Value

Count Down

Maximum Count Value

Overflow and Hold

Pulses are not accumulated in an overflow/underflow state. The counter begins counting again when pulses are applied in the proper direction. For example, if you exceed the maximum by 1000 counts, you do not need to apply 1000 counts in the opposite direction before the counter begins counting down. The first pulse in the opposite direction decrements the counter.

28 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Ring Counter

Figure 8 demonstrates ring counter operation. In ring counter operation, the current count (Ctr[n].CurrentCount) value changes between user-programmable minimum count (CtrnMinCount) and maximum count (CtrnMaxCount) values. If, when counting up, the counter reaches the CtrnMaxCount value, it rolls over to the CtrnMinCount value upon receiving the next count and sets the overflow bit. If, when counting down, the counter reaches the CtrnMinCount value, it rolls under to the CtrnMaxCount value upon receiving the next count and sets the underflow bit. These bits can be reset using the CtrnResetCounterOverflow and CtrnResetCounterUnderflow bits.

Figure 8 - Ring Counter Diagram

Modifying Count Value

Maximum Count Value

Rollover

Count Down

Minimum Count Value

Count Up

The count value (Ctr[n].CurrentCount) can be stored, reset, or preset using the Z-input, CtrReset bit in the configuration array, control bits in the output array, or overwritten using a Direct Write command.

Table6-Available Z Functions

Setting For function

(1)

Store

Hold WhileZ=1,hold counter at its current value

Preset/Reset On rising edge of Z, preset the count value to the value in the preset word

(1) If both a store and preset function are configured, the stored count is captured before the preset operation

takes place.

On rising edge of Z, store count in the Stored Count input word

IMPORTANT

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 29

Because only the Z-inputs are used for external gating and presetting, these functions are not available for Counters 2 and 3, which do not have Z-inputs. All options are always available for Counters 0 and 1, regardless of input operational mode.

Chapter 2 Module Operation

Counter Enable/Disable

The counter can be enabled or disabled using the CtrnEn control bit. Be aware that disabling the counter does not inhibit any current count loading functions (for example, preset or direct write) or any Z function.

Z Input Functions

There are three Z input functions: store, gate, and Z preset.

Store

The Z-input can be used to capture the current count value even when the counter is counting at full 1 MHz speed.

Gate

The Z-inputs can be used to gate (hold) the counter at its current value regardless of incoming A or B inputs. A gating function is typically one that lets pulses reach the counter (gate open) or not (gate closed).

Z Preset

Preset can be programmed to occur based on the actions of the Z-input signal.

Inhibit and Invert

The Z-input signals can be inverted and/or inhibited, depending on the user configuration of the CtrnZInvert and CtrnZInhibit output control bits. If the signal is inhibited, the invert bit is the Z signal for the actions described above.

For an explanation of those bits, see

Z Inh - Z Inhibit (CtrnZInhibit) on page 93.

and

Z Inv - Z Invert (CtrnZInvert) on page 93

Direct Write

You can arbitrarily change the current count value (Ctr[n].CurrentCount) to the direct write control value (Range12To15[n].HiLimOrDirWr). This ability applies to ranges 12…15. The direct write value takes effect when the Load Direct Write bit (Range12To15[n].LoadDirectWrite) transitions from 0 to 1.

If you attempt to preset and load direct write to a counter at the same time, only the preset (CtrnPreset) will take effect.

30 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Preset/Reset

Preset sets the counter to a zero or non-zero value you define. Reset the counter by setting this value (CtrnPreset) to zero.

Counter Reset

Refer to page 73 in Chapter 4 for details on performing a default counter reset for the CMX 5370 L2 packaged controller and the 1769-HSC/B module only. The L23E packaged controller and the 1769-HSC/A module do not have this functionality.

Soft Preset

Preset can be programmed to occur by setting the appropriate output control bits via your control program. Setting the CtrnSoftPreset bit in the output array causes the counter to be preset, changing the count to the value in CtrnPreset.

Z Preset

Preset can be programmed to occur based on the actions of the Z-input signal.

Autopreset

If the module is configured such that CtrnMaxCount < Ctr[n].CurrentCount or CtrnMinCount > Ctr[n].CurrentCount, then the module will automatically change Ctr[n].CurrentCount to the CtrnPreset value and set the CtrnPresetWarning bit.

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Chapter 2 Module Operation

Rate/Timer Functionality

To ensure maximum accuracy, the module offers two different methods to calculate the rate.

• Per Pulse = 1/Pulse Interval

• Cyclic = Number of Pulses/User-defined Time Interval

You select the method used, depending upon the pulse speed as defined below. These are continuously available regardless of input operational mode.

IMPORTANT

The Rate/Timer Functionality information does not apply to the L23E packaged controller.

Pulse Interval Rate Calculation Method

Pulse Interval = 100 µs Frequency = 1/100 µs = 10,000 Hz

The pulse interval rate method is very accurate for slower rates, that is, when the pulse interval (or time between pulses) is large compared to the system clock timer (1 μs). A timer is used to measure the time between two successive pulses. The inverse of this value is the pulse interval rate. The pulse interval rate cannot be read directly from the module. It needs to be calculated. The calculation can be performed in the user control program.

This method is not as accurate for higher pulse rates. When the pulse interval shrinks, two factors can distort the per pulse calculation. If the pulse interval is close to the measuring timer’s clock frequency, 1 MHz, the granularity of the time increments has a greater effect on rate inaccuracy. In addition, the rate can be calculated many times over the course of a single backplane scan. As a result, the rate data obtained at a backplane scan is only that of the very last pair of pulses and disregards the other rate calculations that have occurred during that interval. This can result in rate inaccuracy if the pulses are unevenly spaced.

Cyclic Rate Calcu

The module continuously calculates rates for each of its four possible counters, regardless of operational mode (for example, up/down count). The 32-bit signed integer rate from each counter is reported in the Ctr[n].CurrentRate words of the input array.

In this method, the rates are calculated at the end of a counter’s configured cycle time. This is configured via the CtrnCyclicRateUpdateTime configuration word/menu. Valid entries are 1…32,767 ms. The number of net counts, net change in Ctr[n].CurrentCount, during that period is converted into a rate value, providing an average pulse rate.

lation Me

thod (current rate)

32 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

The generalized rate calculation is Rate =  count/  time.

IMPORTANT

The rate calculation is based on net counts. If a counter goes up 500 counts and down 300 counts, the net count is 200. Therefore, changes in direction and speed affect the Ctr[n].CurrentRate value.

The cyclic method is better suited to high pulse rates.

Hysteresis Detection and Configuration

Because physical vibration can cause an encoder to generate pulses that you do not wish to consider as valid motion, a hysteresis value is used to eliminate a certain number of pulses in either direction as vibration-generated. These pulses are not used to calculate the Ctr[n].CurrentRate value. You program the minimum number of counts that are considered to be valid motion, using the CtrnHysteresis configuration word/menu. If the change in counts over the update time cycle is equal to or less than the minimum number of programmed counts, the Ctr[n].CurrentRate is reported as zero.

This concept is not used to alter actual count values.

IMPORTANT

Hysteresis does not depend on the direction of the change in count. Therefore, creeping, a slow change in count in one direction only, can also be reported as zero frequency when it falls below the hysteresis threshold.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 33

Chapter 2 Module Operation

Scalar

You can configure the CtrnScalar value to scale or convert the raw rate value to application-specific information, such as RPM (Revolutions Per Minute). Setting CtrnScalar to 1 leaves the rate value in cycles per second (Hertz).

The actual rate equation is the following.

Current Rate =

TIP

1000 x count

CyclicRateUpdateTime x Scalar

To configure the Ctr[n].CurrentRate value to show an RPM value, set CtrnScalar to (counts per revolution)/60.

For example, where Ctr0CyclicRateUpdateTime = 80, the encoder has 360 counts per revolution, and the change in Ctr[0]. CurrentCount is 96.

Scalar =

RPM =

360 counts/revolution

60 sec/min

1000 Cyclic Rate Update Time/sec x 96 counts

80 Cyclic Rate Update Time x 360 counts/revolution

60 sec/min

= 200 RPM

Rate Valid

The Ctr[n].RateValid bit indicates calculation integrity. When the bit is set, it indicates that the accompanying Ctr[n].CurrentRate value is accurate.

The Ctr[n].RateValid bit is reset when the overflow or underflow events have occurred, that is, at rising edges of Ctr[n].Overflow or Ctr[n].Underflow bits. It also happens when the count is abruptly modified via a preset (CtrnSoftPreset, CtrnCtrPresetWarning or Z based preset event) or direct write (Range12To15[n].LoadDirectWrite). When this occurs, the Ctr[n].CurrentRate value is frozen at the last known good value so that effects of erroneous rates will not propagate to range comparisons. The value remains frozen until the current cycle time plus one more cycle time are elapsed (this can be up to twice the CtrnCyclicRateUpdateTime). If the overflow/underflow occurrence lasts for more than one cycle time, the value is frozen that entire time plus up to two more cycle times.

Ensure that another overflow/underflow does not happen during this recovery time. The rate will remain invalid until a full update time has occurred with no such events. If the Ctr[n].RateValid bit is seldom or never set, the CtrnMinCount and CtrnMaxCount values can be configured too close to each other.

34 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Rate Method

Selectio

By knowing when to use each method, an optimal rate determination can be made.

TIP

Fractional rates are not reported by the module, but can be calculated from Ctr[n].PulseInterval in your control program.

Use the following information to choose the appropriate calculation method. In general, consider the effect of having the count off by ±1 in each method at frequencies of interest to see if the resulting inaccuracy is acceptable.

Per Pulse Method Example

If the frequency of interest has 100 counts (of the 1 μs clock) between pulses, an error of 1 count results in a 1-in-100, or 1%, error. If there are 1000 counts between pulses, then the error is 1-in-1000, or 0.1%. Error for a variety of pulse values is shown below.

Table 7 - Per Pulse Errors

Actual 1 µs Internal

(1)

Pulses

2 1 500 kHz 1 MHz 100%

9 10 111 kHz 100 kHz 11.1%

101 100 9.901 kHz 10.000 kHz 1.00%

1001 1000 999 Hz 1000 Hz 0.10%

9999 10,000 100.01 Hz 100.00 Hz 0.010%

99,999 100,000 10.00010 Hz 10.00000 Hz 0.001%

Reported Pulses

Real Frequency Reported

Frequency

% Error

(1) 1.9999 can be rounded to 2 and so on.

Cyclic Method

Because the update time is programmable, there is more flexibility in choosing the correct fit when using the Cyclic Method.

Error estimates are shown below for a variety of update times.

Table 8 - Maximum Cyclic Rate Errors

CyclicRateUpdate Time x Scalar

1 N/A N/A 20.02% 2.011% 0.210%

10 N/A 20.11% 2.020% 0.210% 0.030%

100 20.01% 2.110% 0.220% 0.031% 0.012%

1000 3.010% 0.310% 0.040% 0.013% 0.010%

10,000 1.210% 0.130% 0.022% 0.011% 0.010%

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 35

Frequency

100 Hz 1 kHz 10 kHz 100 kHz 1 MHz

Chapter 2 Module Operation

Output Control

All 16 outputs can be controlled by any of the four counters or by the user’s control program, via the output mask function. Output states are determined by count, rate (not supported in packaged controller), ranges, mask configuration data, overcurrent status, and safe state settings and conditions.

The 16 outputs are made up of four real (physical) outputs and 12 virtual outputs. The status of the real and virtual outputs is available to the user program. The real outputs are electronically protected from overloads.

IMPORTANT

To turn outputs on, you must use both the Output On Mask and the Output Off Mask.

Masks

You can use an Output On Mask or an Output Off Mask.

Output On Mask

Using the Output On Mask, all of the module’s outputs can be turned on directly by the user control program, like discrete outputs. A bit that is set in the mask turns on the corresponding real or virtual output.

Output Off Mask

The Output Off Mask has veto power over any output. It can turn any or all of the module’s outputs off. When a bit in this mask is set to 0, the output will be turned off. Each bit is logically ANDed with the Output On Mask and masks of active and enabled ranges. If the bit in this mask is set to 1, the output can be turned on or off by the ranges, or the Output On Mask. The final result is available as the Readback.n bit.

36 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Ranges

For the 1769-HSC module and the embedded HSC in the CMX 5370 L2 packaged controllers, up to 16 dynamically configurable ranges are available. Ranges activate outputs based on the current count value or the current rate value. Each range is programmed with a type, counter number, two limit values, an invert bit, and an output mask.

For the embedded HSC in the L23E packaged controller, up to four dynamically configurable ranges are available. Ranges activate outputs based on the current count value. Each range is programmed with a counter number, two limit values, an invert bit, and an output mask.

Each range is programmed with high and low limits for the chosen value. The range’s invert bit indicates whether the range is active between or outside the range limits. When the chosen value fulfills the configuration parameters, the range is active as indicated in the input array. When a range is active and enabled (RangeEn.n = 1), the range turns on all outputs indicated by the Range Output Mask except those that are prevented from being enabled by the other factors such as Output Off Mask or Overcurrent. The status of a range is provided by the range active status word, where 1 equals range active and zero equals inactive.

TIP

Ranges can be disabled while the module is running using the RangeEn.n bit in the output file. However, even a disabled range will report when it is active or not. For example, an unprogrammed range has limits of 0, and points to the Ctr[0].CurrentCount value. If this value is 0, that range is reported as active.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 37

Chapter 2 Module Operation

Count Range

In a non-inverted count range, the outputs are active if the count value is within the user-defined range. In an inverted count range, the outputs are active if the count value is outside the user-defined range. Valid limits for the range are

-2…2 billion regardless of programmed minimum and maximum values.

Figure 9 shows all ranges referring to one counter. The module is capable of individually assigning each range to any counter. Each counter can also have a combination of count and rate ranges.

Figure 9 - Count Range Example

-200,000 106,000

Range 4 Stop Value

Output 0

Off

Output 1

Output 2

Output 3

Table 9 - Count Range Example Values

Ctr[0].CurrentCount

Range 1 Range 2 Range 4

Start Value

Outputs

Range 3

(2)

(Range[n].OutputControl word)

(1)

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Range

Range Counter Number

Range Type

Range Low Limit

1 01 0 -7000 -5000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0

2 01 0 -1000 4500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1

3 01 0 -4000 3000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2

4 01 0 -9000 9000 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 and 3

(1) For Range Type, 0 = count range and 1 = rate range.

(2) Bits 0…3 are real outputs. Bits 4…15 are virtual outputs.

38 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Range High Limit

Range Invert Bit

Outputs Affected

Rate Range

Module Operation Chapter 2

IMPORTANT

The Rate Range information does not apply to the packaged controller.

In a non-inverted rate range, the outputs are active if the rate measurement is within the user-defined range. In an inverted rate range, the outputs are active if the rate measurement is outside the user-defined range. The input rate can be up to 1 MHz in either direction.

Figure 10 shows all ranges referring to one counter. The module is capable of individually assigning each range to any counter. Each counter can also have a combination of count and rate ranges.

Figure 10 - Rate Range Example

-1,000,000 1,000,000

Range 4 Range 1 Range 2 Range 4

Range 3

Output 0

Off

Ctr[0].CurrentRate

Output 1

Output 2

Output 3

Table 10 - Rate Range Example Values

(2)

Outputs

(1)

Range

Range Counter

Number

Range Type

Range Low Limit

1 00 1 -7000 -5000 0 00000000000000010

2 00 1 -1000 4500 0 00000000000000101

3 00 1 -4000 3000 0 00000000000001002

4 00 1 -20,000 20,000 1 00000000000010010and3

(1) For Range Type, 0 = count range and 1 = rate range. (2) Bits 0…3 are real outputs. Bits 4…15 are virtual outputs.

Range High Limit

(Range[n].OutputControl word)

1514131211109876543210

Range Invert Bit

Outputs Affected

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 39

Chapter 2 Module Operation

Overcurrent

If the module detects a real output point overcurrent condition, it reports it to the input file and turns off that output. You can also program the module to latch each of the four real outputs off, emulating a physical fuse, or to automatically reset. The 12 virtual outputs do not have this function.

When the OvercurrentLatchOff bit is set and an overcurrent situation occurs, even momentarily, the associated real output is latched off until the ResetBlownFuse bit transitions from 0 to 1.

If the OvercurrentLatchOff bit is reset and an overcurrent situation occurs, the output turns off for 1 second and is then retried (auto-reset). The module continues to attempt to turn the output back on until the overcurrent situation is no longer detected and the output is successfully turned back on.

IMPORTANT

The outputs will be on momentarily while they are retried. The length of time they are on depends on the magnitude of the load.

Safe State Control

The 1769-HSC module combines the Hold Last State and User-defined Safe State options with a safe-state run alternative that lets the module to continue to

control outputs under program or fault states available in the packaged controllers.

Only the physical outputs are affected by safe state settings and conditions. Virtual outputs, inputs, and counting are not affected by program or fault states.

Hold Last State (HLS)

This condition applies depending on the mode of the controller. When the hold last state option is set, the module holds the outputs at the state they were at just before the control system transitioned from Run to Program or Run to Fault.

HLS sets the module according to the values configured for Program mode (described on

page 76) and Output Fault mode (described on page 77).

(1)

. These Safe State options are not

User-defined Safe State (UDSS)

In this configuration, the module sets the outputs to a user-defined safe state when the control system transitions from Run to Program or Run to Fault.

UDSS sets the module according to the values configured for Output Program Value (described on

(1) The module continues to update the input array and count inputs in all modes. The operation of the outputs will

vary according to mode, configuration, and the capabilities of the controller or bus master.

40 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

page 77) and Output Fault Value (described on page 78).

Module Operation Chapter 2

Program State Run (PSR)

Program State Run lets you specify that the output should continue to be controlled by the module as if it were in the Run state. That is, events on the module or changes in the output image will affect the physical outputs without regard to the Program_HLS or UDSS state indicated. When this bit is set, the corresponding OutnProgramMode and OutnProgramValue bits are ignored.

PSR sets the module according to the value configured for Output Program State Run, as described on

ATTENTION: Selecting this option lets outputs change state while ladder logic is not running. You must take care to assure that this does not pose a risk of injury or equipment damage when selecting this option.

page 76.

IMPORTANT

The prescan initiated by some controllers could have an effect on the outputs. To overcome any changes in physical output states caused by this, retentive output instructions (for example, latch or unlatch) should be used when bit manipulations are done on the output image of this module in ladder logic.

This applies to a wide range of bits when Program State Run is selected, because presetting a counter, enabling a range, changing a mask, and changing module configuration array settings can cause ranges and outputs to change state.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 41

Chapter 2 Module Operation

Fault State Run (FSR)

Similar to Program State Run, Fault State Run lets you specify, on a bit basis, that the output should continue to be controlled by the module as if it were Run state. That is, events on the module or changes in the output image will affect the physical outputs without regard to the Fault_HLS or UDSS state indicated. When this bit is set, the corresponding Fault mode and fault value bits are ignored.

FSR sets the module according to the value configured for Output Fault State Run, as described on

page 77.

ATTENTION:Selecting this option lets outputs change state while ladder logic is not running. You must take care to assure that this does not pose a risk of injury or equipment damage when selecting this option.

IMPORTANT

The prescan initiated by some controllers can have an effect on the outputs. To overcome any changes in physical output states caused by this, use retentive output instructions (for example, latch or unlatch) when bit manipulations are done on the Output image of this module in ladder logic.

This applies to a wide range of bits when Fault State Run is selected, because presetting a counter, enabling a range, changing a mask, and changing configuration array settings can cause ranges and outputs to change state.

42 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Operation Chapter 2

Program to Fault Enable (PFE)

The ProgToFaultEn bit lets you select which data value (Program Value or Fault Value) to apply to the output when the Output State Logic state Prog_HLS changes to indicate Fault_HLS.

If PFE is 0, the module leaves the Program value applied. If PFE is set to 1, the Fault value is applied.

TIP

If the module is in a safe state such as Program or Fault which is configured to turn an output ON and excessive current is drawn from the output, the output will still turn off according to the programmed OverCurrentLatchOff bit configuration.

The module’s Default Safe State configuration is all zeros, resulting in the following:

• Program State = UDSS

• Program Value = OFF

• Program State Run = No

• Fault State = UDSS

• Fault Value = OFF

• Fault State Run = No

• PFE = leave program value applied

Output Control Example

The following example illustrates the module’s output control flow. The following conditions are reflected in the

• Range 0 is enabled and active.

• Range 1 is disabled.

• Range 2 is enabled but not active.

• An overcurrent condition exists on real output 3.

• OvercurrentLatchOff is set.

• The system is in Run mode.

Output Control Example on page 44:

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 43

Chapter 2 Module Operation

Table 11 illustrates the step-by-step logical operations that are performed to determine the final output state. For example, Range 1 values do not affect the output because Range 1 is disabled, and the Output Off Mask causes some of the outputs to change to zero because it takes priority over the range masks.

The output parameters shown have been discussed in the previous sections.

Table 11 - Output Control Example

Output Parameter Mask Information Logical Operation Result

Range 0 0 001011011010001OR 0001011011010001

Range 1 0 010111111110010OR 0001011011010001

Range 2 0 100000000001100OR 0001011011010001

Output On Mask 0 100101010101000OR 01 011 110111 1 1 001

Output Overcurrent - -----------1000AND 0101111011110 001

Output Off Mask 1 111000011111100AND 0101000011110000

Program State Values

Fault State Values - -----------11 1 1 Override 0 101000011110000

Final Output State 0 101000011110000

------------11 1 1 Override 0 101000011110000

(1)

(1) Bolded text indicates that these values have changed.

Readback/Loopback

The Readback/Loopback function is the feedback of the module’s outputs via its input array. This 16-bit image includes both real (4) and virtual (12) outputs.

If the module’s output is OFF due to overcurrent, both the Overcurrent status flag and the Readback bit will indicate the condition being 1 and 0, respectively. Conversely, should the output be ON due to any module control, such as UDSS, this will be indicated by Readback.

44 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Chapter 3

Installation and Wiring

This chapter explains how to install and wire the 1769-HSC module.

Topic Page

Power Requirements 47

General Considerations 47

System Assembly 49

Mount the Module 50

Replace the Module within a System 53

Field Wiring Connections 54

IMPORTANT

ATTENTION: Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11. Without appropriate precautions, there can be difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances.

This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if non-metallic. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

In addition to this publication, see the following:

For information about installing and wiring the packaged controllers, refer to the CompactLogix Packaged Controller Installation Instructions, publication 1769-IN082.

• Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1, for additional installation

requirements

• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by

enclosures

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 45

Chapter 3 Installation and Wiring

North American Hazardous Location Approval

The following information applies when operating this equipment in hazardous locations.

Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest "T" number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation.

EXPLOSION HAZARD

• Do not disconnect equipment unless

power has been removed or the area is known to be nonhazardous.

• Do not disconnect connections to this

equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.

• Substitution of any component may

impair suitability for Class I, Division 2.

• If this product contains batteries, they

must only be changedin anarea known to be nonhazardous.

Informations sur l’utilisation de cet équipement en environnements dangereux.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu'à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d'équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation.

RISQUE D’EXPLOSION

• Couper le courant ou s'assurer que

l'environnement est classé non dangereux avant de débrancher l'équipement.

• Couper le courant ou s'assurer que

l'environnement est classé non dangereux avant de débrancher les connecteurs. Fixertous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.

• La substitution de tout composant peut

rendre cet équipement inadapté à une utilisation en environnement de Classe I, Division 2.

• S'assurer que l'environnement est

classé nondangereux avant de changer les piles.

ATTENTION: Prevent Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component boards.

• Do not touch circuit components inside the equipment.

• Use a static-safe workstation, if available.

• Store the equipment in appropriate static-safe packaging when not in use.

WARNING: Hazardous Location Enclosure

When used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable enclosure with proper wiring method that complies with the governing electrical codes.

46 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Power Requirements

The modules receive power through the Compact bus interface from the 5V DC/24V DC system power supply. The maximum current drawn by the modules is shown in the table.

Module Current Draw 5V DC 24V DC

425 mA 0 mA

WARNING: When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations.

By sure that power is removed or the area is nonhazardous before proceeding. Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts can create electrical resistance that can affect module operation.

WARNING: Removable Terminal Block (RTB) Under Power

When you connect or disconnect the removable terminal block (RTB) with field side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

General Considerations

Compact I/O is suitable for use in an industrial environment when installed in accordance with these instructions.

Selecting a Location to Reduce Noise

Most applications require installation in an industrial enclosure to reduce the effects of electrical interference. The module is highly susceptible to electrical noise. Electrical noise coupled to the inputs will reduce the performance (accuracy) of the module.

Group your modules to minimize adverse effects from radiated electrical noise and heat. When selecting a location for a module, position the module away from the following:

• Sources of electrical noise, such as hard-contact switches, relays, and AC motor drives.

• Modules that generate significant radiated heat, such as the 1769-IA16 module. Refer to the module’s heat dissipation specification.

In addition, route shielded, twisted-pair analog input and output wiring away from any high voltage I/O wiring.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 47

Chapter 3 Installation and Wiring

Protect the Circuit Board from Contamination

The printed circuit boards of the modules must be protected from dirt, oil, moisture, and other airborne contaminants. To protect these boards, we recommend installing the system in an enclosure suitable for the environment. Keep the interior of the enclosure should clean and the enclosure door closed whenever possible.

Power Supply Distance

You can install as many modules as your power supply can support. However, the module has a power supply distance rating of four, which means that it can not be more than four modules away from the system power supply.

The illustration provides an example of determining power supply distance.

MicroLogix 1500 Controller

with Integrated System

Power Supply

Power Supply Distance

Compact I/O

1 2 34 5 6 78

Adapter

Compact I/O

I/O Communication

4321 123

Compact I/O

System

Power Supply

Compact I/O

45274

Compact I/O

End Cap

48 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

System Assembly

The module can be attached to an adjacent controller, power supply, or I/O module. For mounting instructions, see

Panel Mounting on page 50, or

DIN Rail Mounting on page 52.

To work with a system that is already mounted, see

Replace the Module within a

System on page 53.

Refer to the illustration when assembling the Compact I/O system.

45275

1. Disconnect the power.

2. Check that the bus lever of the module (A) is in the unlocked

(fully right) position.

3. Use the upper and lower tongue-and-groove slots (B) to secure the modules together.

4. Move the module back along the tongue-and-groove slots until the bus connectors (C) line up with each other.

5. Use your fingers or a small screwdriver to push the bus lever back slightly to clear the positioning tab (D).

6. Move the module’s bus lever fully to the left (E) until it clicks, making sure it’s locked firmly in place.

ATTENTION: When attaching I/O modules, it is very important that the bus connectors are securely locked together to provide proper electrical connection.

7. Attach an end cap terminator (F) to the last module in the system by using the tongue-and-groove slots as before.

8. Lock the end cap bus terminator (G).

IMPORTANT

A 1769-ECR right- or 1769-ECL left-end cap must be used to terminate the end of the serial communication bus.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 49

Chapter 3 Installation and Wiring

Mount the Module

Use these procedures to mount your module.

ATTENTION: During panel or DIN-rail mounting of all devices, be sure that all debris (metal chips, wire strands) is kept from falling into the module. Debris that falls into the module could cause damage at powerup.

Minimum Spacing

Maintain spacing from enclosure walls, wireways, adjacent equipment, and so forth. Allow 50 mm (2 in.) of space on all sides for adequate ventilation, as shown.

To p

Side Side

Host Controller

Compact I/O

End Cap

Bottom

Panel Mounting

Mount the module to a panel by using two screws per module. Use M4 or #8 panhead screws. Mounting screws are required on every module.

ATTENTION: This product is intended to be mounted to a well-grounded mounting surface such as a metal panel. Additional grounding connections from the power supply's mounting tabs or DIN rail (if used) are not required unless the mounting surface cannot be grounded. Refer to Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1, for additional information.

50 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Figure 11 - Compact I/O Module with CompactLogix Controller and Power Supply

Mounting Hole Dimension

50 mm

(1.97 in.)

40 mm

(1.58 in.)

(2.32 in.)

118 mm (4.65 in.)

(2.32 in.)

122.6 mm (4.83 in.)

59 mm 59 mm

Important: Hole spacing tolerance: ±0.04 mm (0.016 in.).

Figure 12 - Compact I/O Module with MicroLogix 1500 Base Unit and Processor

Mounting Hole Dimension

35 mm 35 mm

(1.38 in.)

70 mm (2.76 in.) 28.5 mm

(1.38 in.) (1.38 in.) (1.38 in.) (1.38 in.)

DIN Rail Center Line

14.7 mm (0.58 in.)

168 mm

(6.62 in.)

147 mm

(5.79 in.)

(1.38 in.)

35 mm35 mm35 mm35 mm

35 mm (1.38 in.) 35 mm

(1.38 in.)

(1.12 in.)

147.4 mm (5.81 in.)

28.5 mm (1.12 in.)

132 mm (5.19 in.)

45198

118 mm (4.65 in)

(2.32 in.) (2.32 in.)

122.6 mm (4.83 in.)

59 mm 59 mm

DIN Rail Center Line

Important: Hole spacing tolerance: ±0.04 mm (0.016 in.).

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 51

13.5 mm (0.53 in.)

14.7 mm (0.58 in.)

147.4 mm (5.81 in.)

132 mm (5.19 in.)

45199

Chapter 3 Installation and Wiring

Panel Mounting Procedure By Using Modules as a Template

This procedure lets you use the assembled modules as a template for drilling holes in the panel. Due to module mounting hole tolerance, it is important to follow these procedures:

1. On a clean work surface, assemble no more than three modules.

2. Using the assembled modules as a template, carefully mark the center of all

module-mounting holes on the panel.

3. Return the assembled modules to the clean work surface, including any previously mounted modules.

4. Drill and tap the mounting holes for the recommended M4 or #8 screw.

5. Place the modules back on the panel, and check for proper hole alignment.

6. Attach the modules to the panel using the mounting screws.

TIP

7. Repeat steps

If mounting more modules, mount only the last one of this group and put the others aside. This reduces remounting time during drilling and tapping of the next group.

1 through 6 for any remaining modules.

DIN Rail Mounting

The module can be mounted on the following DIN rails:

• EN 50 022 - 35 x 7.5 mm (1.38 x 0.3 in.)

• EN 50 - 35 x 15 mm (1.38 x 0.59 in.)

1. Before mounting the module on a DIN rail, close the DIN rail latches.

2. Press the DIN rail mounting area of the module against the DIN rail.

The latches will momentarily open and lock into place.

Figure 13 - DIN Rail Mounting Dimensions

Dimension Height

A 118 mm (4.65 in.)

B 59 mm (2.325 in.)

C 59 mm (2.325 in.)

52 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Replace the Module within a System

The module can be replaced while the system is mounted to a panel or DIN rail.

1. Remove power, referring to the Warning on

2. Remove terminal block or disconnect input and/or output wiring from the

module.

3. Remove the upper and lower mounting screws from the module (or open the DIN latches using a screwdriver).

4. On the module to be replaced and the right-side adjacent module (or end cap if the module is the last module in the bank), move the bus levers to the right (unlock) to disconnect the module from the adjacent modules.

5. Gently slide the disconnected module forward.

If you feel excessive resistance, make sure that you disconnected the module from the bus and that you removed both mounting screws (or opened the DIN latches).

TIP

6. Before installing the replacement module, be sure that the bus lever on the right-side adjacent module is in the unlocked (fully-right) position.

It may be necessary to rock the module slightly from front to back to remove it, or, in a panel-mounted system, to loosen the screws of adjacent modules.

page 47.

7. Slide the replacement module into the open slot.

8. Connect the modules together by locking (fully-left) the bus levers on the

replacement module and the right-side adjacent module or end cap.

9. Replace the mounting screws (or snap the module onto the DIN rail).

10. Replace the terminal block or connect the input and/or output wiring to

the module.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 53

Chapter 3 Installation and Wiring

Field Wiring Connections

Consider these system wiring guidelines when wiring your system.

General Guidelines

• Make sure the system is properly grounded.

• Input and output channels are isolated from the 1769 Compact bus. Input

channels are isolated from one another; output channels are not.

• Shielded cable is required for high-speed input signals A, B, and Z. Use individually shielded, twisted-pair cable for lengths up to 300 m (1000 ft).

• Group this module and other low voltage DC modules away from AC I/O or high voltage DC modules.

• 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.

• Routing field wiring in a grounded conduit can reduce electrical noise.

• If field wiring must cross AC or power cables, make sure that they cross at

right angles.

Terminal Block Guidelines

• For optimum accuracy, limit overall cable impedance by keeping 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.

Grounding Guidelines

• This product is intended to be 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 required only when the mounting surface is non-conductive and cannot be grounded.

• Keep shield connection to ground as short as possible.

• Ground the shield drain wire at the 1769-HSC module, input end only.

Refer to the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1, for additional installation requirements.

54 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Considerations for Reducing Noise

In high-noise environments, the 1769-HSC module inputs can accept ‘false’ pulses, particularly when using low frequency input signals with slowly sloping pulse edges. To minimize the effects of high frequency noise on low frequency signals, perform the following:

• Identify and remove noise sources.

• Route input cabling away from noise sources.

• Use your programming software to select low-pass filters on input signals.

Filter values depend on the application and can be determined empirically.

• Use devices which output differential signals, such as differential encoders, to minimize the possibility that a noise source will cause a false input.

Remove and Replace the Terminal Block

When wiring the module, you do not have to remove the terminal block. If you remove the terminal block, use the write-on label on the side of the terminal block to identify the module location and type.

SLOT # _____

MODULE TYPE ______

To remove the terminal block, loosen the upper- and lower-retaining screws. The terminal block will back away from the module as you remove the screws. When replacing the terminal block, torque the retaining screws to 0.46 N•m (4.1 lb•in).

Wire the Finger-safe Terminal Block

When wiring the terminal block, keep the finger-safe cover in place.

Upper Retaining Screw

Wiring the Finger-safe Terminal Block

Lower Retaining Screw

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 55

Chapter 3 Installation and Wiring

Follow these steps.

1. Loosen the terminal screws to be wired.

2. Route the wire under the terminal pressure plate.

You can use the bare wire or a spade lug. The terminals accept a 6.35 mm (0.25 in.) spade lug.

TIP

The terminal screws are non-captive. Therefore, it is possible to use a ring lug (6.35 mm (0.25 in.) maximum outside diameter with

3.53 mm (0.139 in.) minimum inside diameter) with the module.

3. Tighten the terminal screw making sure the pressure plate secures the wire. Recommended torque when tightening terminal screws is 0.68 N•m (6 lb•in).

TIP

If you need to remove the finger-safe cover, insert a screwdriver into one of the square, wiring holes and gently pry the cover off. If you wire the terminal block with the finger-safe cover removed, you will not be able to put it back on the terminal block because the wires will be in the way.

Wire Size and Terminal Screw Torque

Each terminal accepts up to two wires with these restrictions.

Wire Type Wire Size Terminal Screw

Solid Cu-90 °C (194 °F) 0.32... 2.1 mm

Stranded Cu-90 °C (194 °F) 0.32... 1.3 mm

(22...14 AWG) 0.68 N•m

(22...16 AWG) 0.68 N•m

Torque

(6 lb•in)

RetainingScrew Torque

0.46 N•m (4.1lb•in)

0.46 N•m (4.1 lb•in)

56 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Wire the Modules

After the module is properly installed, wire the modules by using this procedure. To provide proper operation and high immunity to electrical noise, always use shielded wire.

ATTENTION: To prevent shock hazard, care should be taken when wiring the module to signal sources. Before wiring any module, disconnect power from the system power supply and from any other source to the module.

Do not wire more than two conductors on any single terminal.

Cut Foil Shield and Drain Wire

Signal Wire

Drain Wire

Foil Shield

Cable

Signal Wire

Follow these steps to wire your module.

1. At each end of the cable, strip some casing to expose the individual wires.

2. Trim the signal wires to 5 cm (2 in.) lengths, stripping about 5 mm (0.2 in.)

of insulation away to expose the end of the wire.

ATTENTION: Be careful when stripping wires. Wire fragments that fall into a module could cause damage at powerup.

3. At the 1769-HSC module input end of the cable, twist the drain wire and foil shield together, bending them away from the cable, and apply shrink wrap, grounding the shield at this end.

4. At the other end of the cable, cut the drain wire and foil shield back to the cable and apply shrink wrap.

5. Connect the signal wires to the terminal block, connecting the other end of the cable to the input device.

6. Repeat steps

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 57

1 through 5 for each channel on the module.

Chapter 3 Installation and Wiring

Terminal Door Label

A removable, write-on label is provided with the module. Remove the label from the door, mark the identification of each terminal with permanent ink, and slide the label back into the door. Your markings (ID tag) will be visible when the module door is closed.

Terminal Block Wiring

The input and output terminals are shown below. Both inputs and outputs are isolated from the 1769 Compact bus.

DANGER

Do Not Remove RTB Under Power

OUT 0

OUT 2

OUT DC COM

A0-

B0-

Z0-

A1-

B1-

Z1-

OUT DC 5V/24V DC

OUT 1

OUT 3

A0+

B0+

Z0+

A1+

B1+

Z1+

Unless Area is Non-Hazardous.

OUT 0

OUT 2

OUT DC COM

A0-

B0-

Z0-

A1-

B1-

Z1-

OUT DC 5/24V DC

OUT 1

OUT 3

A0+

B0+

Z0+

A1+

B1+

Z1+

Ensure Adjacent Bus Lever is Unlatched/Latched Before/After Removing/Inserting Module

1769-HSC

45276

58 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Wire Diagrams

The following pages show wiring examples for a differential encoder, single-ended encoder, and discrete device.

Inputs

The module utilizes differential inputs. Therefore, two input terminals are required for each input point. For example, the A0+ and A0- terminals are required for input point A0. Each input point is isolated from other input points, the 1769 Compact bus, and the entire output terminal group.

The inputs are compatible with standard differential line driver output devices as well as single-ended devices such as limit switches, photo-eyes, and proximity sensors. Examples of differential and single-ended circuits are shown in

Figure 15.

and

Figure 14 - Differential Encoder Wiring

(1)

Cable

GND

+VDC

COM

Power Supply

Figure 14

Allen-Bradley 845H Series Differential Encoder

Shield

Shield/Housing Connect only if housing is electronically isolated from the motor and ground.

(1)

Refer to your encoder manual for proper cable type. The type of cable used should be twisted pair, individually shielded cable with a maximum length of 300 m (1000 ft).

A1(+)

A1(–)

B1(+)

B1(–)

Z1(+)

Z1(–)

Earth

Module Inputs

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 59

Chapter 3 Installation and Wiring

Figure 15 - Single-ended Encoder Wiring

(1)

GND

(2)

Cable

Allen-Bradley 845H Series

Single-ended Encoder

Shield

Shield/Housing Connect only if housing is electronically isolated from the motor and ground.

(1)

Refer to your encoder manual for proper cable type. The type of cable used should be twisted-pair, individually shielded cable with a maximum length of 300 m (1000 ft).

(2)

External resistors are required if they are not internal to the encoder. The pull-up resistor (R) value depends on the power supply value. The table below shows the maximum resistor values for typical supply voltages. To calculate the maximum resistor value, use the following formula:

VDC Vmin–

--------------------------------------------=

Imin

where: R = maximum pull-up resistor value VDC = power supply voltage Vmin = 2.6V DC Imin = 6.8 mA

Power Supply Voltage (V DC) Pull-up Resistor Value (R), Max

5 352  12 1382  24 3147 

Earth

+VDC

COM

A1(+)

A1(–)

B1(+)

B1(–)

Z1(+)

Z1(–)

Power Supply

Module Inputs

(1)

(1) Resistance values can change, depending upon your application.

The minimum resistor (R) value depends on the current sinking capability of the encoder. Refer to your encoder’s documentation.

60 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Installation and Wiring Chapter 3

Figure 16 - Discrete Device Wiring

+VDC

Power

COM

Proximity Sensor

OUT

COM

OUT

COM

OUT

COM

Solid-state Switch

(1)

Photo-electric Sensor with Open Collector Sinking Output

(1)

External resistors are required if they are not internal to the sensor. The pull-up resistor (R) value depends on the power supply value. The table below shows the maximum resistor values for typical supply voltages. To calculate the maximum resistor value, use the following formula:

VDC Vmin–

--------------------------------------------=

Imin

where: R = maximum pull-up resistor value VDC = power supply voltage Vmin = 2.6V DC Imin = 6.8 mA

Power Supply Voltage (V DC) Pull-up Resistor Value (R), Max

5 352  12 1382  24 3147 

Supply

A1(+)

A1(–)

B1(+)

B1(–)

Z1(+)

Z1(–)

Module Inputs

(1)

(1) Resistance values can change, depending upon your application.

The minimum resistor (R) value depends on the current sinking capability of the sensor. Refer to your sensor’s documentation.

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 61

Chapter 3 Installation and Wiring

Outputs

The four output terminals must be powered by a user-supplied external source. User-power range is from 5…30V DC. See the Output Specifications in Appendix A on

page 124.

There is no isolation between the outputs, but the outputs are isolated from the inputs and the 1769 Compact bus.

Electronic Protection

The electronic protection of the 1769-HSC module has been designed to provide protection for current overload and short-circuit conditions. The protection is based on a thermal cut-out principle. In the event of a short-circuit or current overload condition on an output channel, that channel will turn off within milliseconds after the thermal cut-out temperature has been reached.

Overcurrent Autoreset Operation

The module detects overcurrent situations and reports them to the backplane in the OutnOverCurrent bits of the input array. When the overcurrent condition is detected, the outputs are turned off.

The module can latch outputs off to emulate the behavior of a physical fuse. Use the OvercurrentLatchOff bit to enable or disable this feature. When the OvercurrentLatchOff bit is set and an overcurrent situation occurs (even momentarily) the physical output will be latched off until the ResetBlownFuse bit is cycled from off to on (rising edge triggered). During the latched off time, the Readback.n bit in the input array also shows that the output is off.

If the OvercurrentLatchOff bit is not set, the output will be turned off for 1 second and then be retried (if still directed to be on). Retries will repeat until the overcurrent situation is corrected.

The four physical outputs can be latched off only. The virtual outputs are not affected.

IMPORTANT

During the retry period, the physical output and the Readback.n bits will be on briefly (until the overcurrent causes them to shut off again). Take this into consideration and configure your system accordingly.

TIP

62 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Correct short-circuit and overload conditions as soon as possible. If short-circuit and overload conditions occur for extended periods, damage can occur.

Installation and Wiring Chapter 3

Transistor Output Transient Pulses

The maximum duration of the transient pulse occurs when minimum load is connected to the output. However, for most applications, the energy of the transient pulse is not sufficient to energize the load.

ATTENTION: A transient pulse occurs in transistor outputs when the external DC supply voltage is applied to the output common terminals (for example, via the master control relay). The sudden application of voltage creates this transient pulse. This condition is inherent in transistor outputs and is common to solid state devices. A transient pulse can occur regardless of the controller having power. Refer to your controller’s user manual to reduce inadvertent operation.

Figure 17 illustrates that the duration of the transient is proportional to the load current. Therefore, as the on-state load current increases, the transient pulse decreases. Power-up transients do not exceed the time duration shown below, for the amount of loading indicated, at 60 °C (140 °F).

Figure 17 - Transient Pulse Duration as a Function of Load Current

Time - Duration of Transient Pulse (ms)

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0 10009008007006005004003002001001

On-State Load Current (mA)

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 63

Chapter 3 Installation and Wiring

Output Wiring

Basic wiring

(1)

of output devices

ATTENTION: Follow these guidelines:

• Miswiring of the module to an AC power source or applying reverse

polarity will damage the module.

• Be careful when stripping wires. Wire fragments that fall into a module

could cause damage at powerup. Once wiring is complete, make sure the module is free of all metal fragments.

Figure 18 - Output Device Wiring

OUT DC

OUT 0

OUT 2

OUT DC COM

5/24V DC

OUT 1

OUT 3

A0-

B0-

Z0-

A1-

B1-

Z1-

(2)

to the module is shown in Figure 18.

+DC

A0+

B0+

5/24V DC

Z0+

A1+

B1+

Z1+

-DC

45200

(1) Recommended Surge Suppression - The module has built-in suppression which is sufficient for most applications, however, for

high-noise applications, use a 1N4004 diode reverse-wired across the load for transistor outputs switching 24V DC inductive loads. For additional details, refer to the Industrial Automation Wiring and Grounding Guidelines, publication

(2) Sourcing Output - Source describes the current flow between the I/O module and the field device. Sourcing output circuits

supply (source) current to sinking field devices. Field devices connected to the negative side (DC Common) of the field power supply are sinking field devices. Field devices connected to the positive side (+V) of the field supply are sourcing field devices.

Europe: DC sinking input and sourcing output module circuits are the commonly used options.

64 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

1770-4.1.

Chapter 4

Module Configuration, Output, and Input Data

After installing the 1769-HSC module, you must configure it for operation by using the programming software compatible with the controller, such as RSLogix 500 or RSLogix 5000 software.

Configure the Module

TIP

Normal counter configuration is done using programming software. In that case, it is not necessary to know the meaning of the bit location. However, some systems let the control program change configuration.

Information on programming the module by using specific controllers and software is contained in the following appendices.

Controller Software See

CompactLogix Controller RSLogix 5000

MicroLogix 1500 Controller RSLogix 500

Appendix B on page 131

Appendix C on page 141

The table describes the topics in this chapter.

Topic Page

Configure the Module 65

Configuration Array 66

Output Array 88

Input Array 98

The module uses three arrays: configuration array, output array, and input array. You configure the module by establishing settings in the configuration and output arrays. The input array shows the data that the module sends to the controller.

IMPORTANT

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 65

Both the configuration array and output array settings affect the module configuration. Changing certain configuration parameters from defaults can necessitate changing other values to avoid configuration errors.

Chapter 4 Module Configuration, Output, and Input Data

Configuration Array

The configuration array, which consists of 118 words (46 words for the packaged controller), lets you specify how the module’s counters will function. The default value is all zeros with the exception of the following:

• NumberofCounters (see

• CtrnMaxCount (see

• CtrnMinCount (see

• CtrnScalar (see

page 80)

• CtrnCyclicUpdateTime (see

TIP

IMPORTANT

Normal counter configuration is done using programming software. In that case, it is not necessary to know the bit location. However, some systems let the control program change configuration. Refer to your controller’s documentation for details.

When changing configuration values, verify that only valid configurations are created for the module. For example, changing NumberofCounters from its default of 1 to 0 requires that Ctr1MinCount and Ctr1MaxCount also be set to 0, and so forth.

See the Configuration Error Codes table on page 117 if you encounter configuration errors.

page 75)

page 78)

page 79)

page 81)

Word 0 contains general configuration bits. Word 1 contains the filter settings. Words 2 through 5 refer to the physical outputs. Words 6 through 45 are counter configuration words. Words 46 through 117 are range configuration words. More detailed descriptions of the configuration words and bits follow the configuration array below.

IMPORTANT

Certain values (noted below) cannot be changed while a counter or range is enabled. Attempting to do so will cause a configuration error and the entire configuration array will be rejected until the error is eliminated.

Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC

Bit

Word

0 Individual Counter Reset

1 Filter_Z1

(1)

Counter reset function = 0: reset enable (default), 1: reset disable. See page 73 for details.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

(1)

Disable

Not

Filter_B1 Not

used

Not used Out

Not used Out3PVOut2PVOut1PVOut0PVOutput Program Value

For the 1769-HSC/B module only. Bit 12 is Counter 0 reset disable; Bit 13, Counter 1 reset disable; Bit 14, Counter 2 reset disable; Bit 15, Counter 3 reset disable.

NumberOf Counters

Filter_A1 Filter_Z0 Not

used

Not used PFE Not used Ctr

Filter_B0 Not

used

Out

Out1

Out0 3 PSR

2 PSR

PSR

Out3PMOut2PMOut1PMOut0PMOutput Program Mode

PSR

Rst

Filter_A0 Filter Selection

used

Function

OCLOGeneral Configuration

Bits

and Output Program State Run

66 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Module Configuration, Output, and Input Data Chapter 4

Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Bit

Word

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not used Out

Not used Out3FVOut 2FVOut1FVOut0FVOutput Fault Value

3 FSR

Out 2 FSR

Out 1 FSR

Out0

Out3FMOut 2FMOut1FMOut0FMOutput Fault Mode and

FSR

Function

Output Fault State Run

6 Ctr0MaxCount Counter 0 Maximum

8 Ctr0MinCount Counter 0 Minimum

10 Ctr0Preset Counter 0 Preset

12 Ctr0Hysteresis Counter 0 Hysteresis

13 Ctr0Scalar Counter 0 Scalar

14 Ctr0CyclicRateUpdateTime Counter 0 Cyclic Rate

16 Ctr1MaxCount Counter 1 Maximum

18 Ctr1MinCount Counter 1 Minimum

20 Ctr1Preset Counter 1 Preset

22 Ctr1Hysteresis Counter 1 Hysteresis

Not used Lin-

ear

Not

Storage mode Not used Operational mode Counter 0

used

Count

Update Time

Configuration Flags

Count

23 Ctr1Scalar Counter 1 Scalar

24 Ctr1CyclicRateUpdateTime Counter 1 Cyclic Rate

26 Ctr2MaxCount Counter 2 Maximum

28 Ctr2MinCount Counter 2 Minimum

30 Ctr2Preset Counter 2 Preset

32 Ctr2Hysteresis Counter 2 Hysteresis

33 Ctr2Scalar Counter 2 Scalar

34 Ctr2CyclicRateUpdateTime Counter 2 Cyclic Rate

Not used Lin-

ear

Not

Storage mode Not used Operational mode Counter 1

used

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 67

Update Time

Configuration Flags

Count

Update Time

Chapter 4 Module Configuration, Output, and Input Data

Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Bit

Word

36 Ctr3MaxCount Counter 3 Maximum

38 Ctr3MinCount Counter 3 Minimum

40 Ctr3Preset Counter 3 Preset

42 Ctr3Hysteresis Counter 3 Hysteresis

43 Ctr3Scalar Counter 3 Scalar

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not used Lin-

Not used Counter 2

ear

Function

Configuration Flags

Count

44 Ctr3CyclicRateUpdateTime Counter 3 Cyclic Rate

46 Range0To11[0].HighLimit Range 0 High Limit

48 Range0To11[0].LowLimit Range 0 Low Limit

50 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 0 Output Control

52 Range0To11[1].HighLimit Range 1 High Limit

54 Range0To11[1].LowLimit Range 1 Low Limit

56 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 1 Output Control

58 Range0To11[2].HighLimit Range 2 High Limit

60 Range0To11[2].LowLimit Range 2 Low Limit

62 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 2 Output Control

Not used Lin-

Not used Inv Not used Type Not used ToThisCtr Range 0 Configuration

Not used Inv Not used Type Not used ToThisCtr Range 1 Configuration

Not used Counter 3

ear

Update Time

Configuration Flags

Flags

64 Range0To11[3].HighLimit Range 3 High Limit

68 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Not used Inv Not used Type Not used ToThisCtr Range 2 Configuration

Flags

Module Configuration, Output, and Input Data Chapter 4

Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Bit

Word

66 Range0To11[3].LowLimit Range 3 Low Limit

68 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 3 Output Control

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Function

70 Range0To11[4].HighLimit Range 4 High Limit

72 Range0To11[4].LowLimit Range 4 Low Limit

74 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 4 Output Control

76 Range0To11[5].HighLimit Range 5 High Limit

78 Range0To11[5].LowLimit Range 5 Low Limit

80 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 5 Output Control

82 Range0To11[6].HighLimit Range 6 High Limit

84 Range0To11[6].LowLimit Range 6 Low Limit

86 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 6 Output Control

Not used Inv Not used Type Not used ToThisCtr Range 3 Configuration

Flags

Not used Inv Not used Type Not used ToThisCtr Range 4 Configuration

Flags

Not used Inv Not used Type Not used ToThisCtr Range 5 Configuration

Flags

88 Range0To11[7].HighLimit Range 7 High Limit

90 Range0To11[7].LowLimit Range 7 Low Limit

92 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 7 Output Control

94 Range0To11[8].HighLimit Range 8 High Limit

Not used Inv Not used Type Not used ToThisCtr Range 6 Configuration

Flags

Not used Inv Not used Type Not used ToThisCtr Range 7 Configuration

Flags

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 69

Chapter 4 Module Configuration, Output, and Input Data

Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Bit

Word

96 Range0To11[8].LowLimit Range 8 Low Limit

98 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 8 Output Control

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Function

100 Range0To11[9].HighLimit Range 9 High Limit

101

102 Range0To11[9].LowLimit Range 9 Low Limit

103

104 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 9 Output Control

105

106 Range0To11[10].HighLimit Range 10 High Limit

107

108 Range0To11[10].LowLimit Range 10 Low Limit

109

110 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 10 Output

111

112 Range0To11[11].HighLimit Range 11 High Limit

113

114 Range0To11[11].LowLimit Range 11 Low Limit

115

116 Out15Out14Out13Out12Out11Out10Out09Out8Out7Out6Out 5 Out 4 Out3Out 2 Out1Out0Range 11 Output

117

Not used Inv Not used Type Not used ToThisCtr Range 8 Configuration

Flags

Not used Inv Not used Type Not used ToThisCtr Range 9 Configuration

Flags

Control

Not used Inv Not used Type Not used ToThisCtr Range 10 Configuration

Flags

Control

Not used Inv Not used Type Not used ToThisCtr Range 11 Configuration

Flags

Table 13 - Configuration Array - L23E Packaged Controller Embedded HSC

Bit

Word

1 Filter_Z1

70 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not used NumberOf

Not

Filter_B1 Not

used

Not used Out

Not used Out3

Counters

Filter_A1 Filter_Z0 Not

used

Not used PFE Not used Ctr

Filter_B0 Not

used

Out

Out1

Out0 3 PSR

2 PSR

PSR

Out3 PSO

PVO

OCLOGeneral Configuration

Rst

Filter_A0 Filter Selection

used

Out2

Out1 PSO

Out1 PVO

Out0 PSO

Out0 PVO

PSO

Out2 PVO

Function

Bits

Program State for Output and Program State Run for Output

Program Value for Output

Module Configuration, Output, and Input Data Chapter 4

Table 13 - Configuration Array - L23E Packaged Controller Embedded HSC (Continued)

Bit

Word

6 Ctr0MaxCount Counter 0 Maximum

8 Ctr0MinCount Counter 0 Minimum

10 Ctr0Preset Counter 0 Preset

13 Not used Not used

14 Not used Not used

16 Ctr1MaxCount Counter 1 Maximum

18 Ctr1MinCount Counter 1 Minimum

20 Ctr1Preset Counter 1 Preset

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not used Out

Not used Out3

Not used Not used

Not used Lin-

Not used Not used

ear

Not

Storage mode Not used Operational mode Counter 0

used

3 FSR

Out 2 FSR

Out1 FSR

Out0 FSR

Out3 FSO

FVO

Out2 FSO

Out2 FVO

Out1 FSO

Out1 FVO

Function

Out0

Fault State for Output

FSO

and Fault StateRun for Output

Out0

Fault Value for Output

FVO

Count

Configuration Flags

Count

23 Not used Not used

24 Not used Not used

26 Ctr2MaxCount Counter 2 Maximum

28 Ctr2MinCount Counter 2 Minimum

30 Ctr2Preset Counter 2 Preset

33 Not used Not used

34 Not used Not used

Not used Lin-

Not used Not used

Not used Lin-

Not

ear

Storage mode Not used Operational mode Counter 1

used

Not used Counter 2

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Configuration Flags

Count

Configuration Flags

Chapter 4 Module Configuration, Output, and Input Data

Table 13 - Configuration Array - L23E Packaged Controller Embedded HSC (Continued)

Bit

Word

36 Ctr3MaxCount Counter 3 Maximum

38 Ctr3MinCount Counter 3 Minimum

40 Ctr3Preset Counter 3 Preset

43 Not used Not used

44 Not used Not used

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not used Not used

Not used Lin-

Not used Counter 3

ear

Function

Count

Configuration Flags

General Configuration Bits

These configuration bits apply to the 1769-HSC/B module and the CMX 5370 L2 packaged controller embedded HSC.

Configuration Array Word 0 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

General Configuration Bits Individual Counter

Reset Disable

(1) For the 1769-HSC/B module only. Bit 12 is Counter 0 reset disable; Bit 13, Counter 1 reset disable; Bit 14, Counter 2 reset disable; Bit 15, Counter 3 reset disable.

Counter reset function = 0: reset enable (default), 1: reset disable. The 1769-HSC/A module does not use bits 12…15 in the configuration array. See page 73 for details.

(1)

OCLO - Overcurrent Latch Off (OverCurrentLatchOff)

When set, this bit causes the module to make any overcurrent activity latch the corresponding output off, simulating a physical fuse. When OCLO = 0, it automatically resets. The rising edge of RBF resets the output.

IMPORTANT

Number of counters Not used PFE Not used Ctr

Reset

Do not set this bit while a counter or range is enabled (Ctr0En, Ctr1En, Ctr2En, Ctr3En, or RangeEn set to 1). Attempting to do so will result in a BadModConfigUpdate error.

See page 120 for a list of prohibited settings.

OCL O

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Counter Reset (CtrReset)

Bits 12…15 in the configuration array correspond to the counter reset selection bits for counters 0…3, respectively. The Counter Reset Enable in the Add-On profile lets you select which counter to be enabled or disabled. An enabled checkbox indicates a zero (0) in the respective counter reset selection bits in RSLogix 5000 software.

Counter 0 in this example equates to individual counter reset selection bit 12.

IMPORTANT

The individual counter reset functionality applies onlyto the 1769-HSC/B module used with CompactLogix controllers and the CMX 5370 L2 packaged controller embedded HSC. You cannot use the individual counter reset functionality with MicroLogix controllers.

If you do not want a counter to reset by default, you must uncheck the box in the Add-On profile for the respective counter reset selection bit. A ‘1’ will display in the configuration array to denote that this bit is disabled from resetting a count. The individual counter reset functionality for the 1769-HSC/B module is reverse logic, with a 0 = enabled and a 1 = disabled, for RSLogix 5000 software.

Figure 19 - Configuration for Individual Counter Reset Enable

As shown in Figure 19, the Counter Reset Enable box defaults with a check mark to indicate the respective counter is enabled in the Add-On Profile. Therefore, the individual counter reset functionality is enabled for the selected counter of the 1769-HSC/B module. The corresponding controller tag in RSLogix 5000 software displays a zero (0) for enabled.

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Chapter 4 Module Configuration, Output, and Input Data

Figure 20 - Configuration for Individual Counter Reset Disable

Counter 0 in this example equates to individual counter reset selection bit 12.

As shown in Figure 20, the Counter Reset Enable box has been unchecked to indicate the individual counter reset functionality is disabled for the selected counter of the 1769-HSC/B module. The corresponding controller tag in RSLogix 5000 software shows a one (1) for disabled.

The CtrReset bit, when set, causes the following to occur for both the 1769-HSC/A and 1769-HSC/B modules when the system transitions to Run or the Inhibit Module bit transitions to 0:

• System checks counter reset selection bits 12…15 to determine which counter needs to be reset.

(1)

• Only those counters selected for reset are reset to zero.

• The output array is reset to default values until the ModConfig bit is

set (1). The default value for the output array is all zeros.

• The input array counter status flags (Overflow, Underflow, RisingEdgeZ, RateValid, PresetWarning) are reset.

• The input array counter values (Current Count

(2)

, StoredCount,

CurrentRate and PulseInterval) are also reset to zero.

• Counts are lost and outputs are turned off.

IMPORTANT

For most predictable results, clear the output image of the controller before performing a counter reset (CtrReset) to the 1769-HSC module.

This is because CtrReset does not change the controller’s output image. CtrReset sets the 1769-HSC module’s output array to all zeroes. If any bit is set to 1 in the controller’s output image when sent to the module, it will be seen as a state transition and be acted upon.

(1) This applies only to the 1769-HSC/B module and the CMX 5370 L2 packaged controller embedded HSC. (2) If zero is outside the MinCount and MaxCount limits set in the configuration array, then the Preset value is

loaded into CurrentCount instead of zero. This also causes the PresetWarning bit to be set, which, in turn, sets the GenError bit.

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Module Configuration, Output, and Input Data Chapter 4

PFE - Program to Fault Enable (ProgToFaultEn)

This bit indicates what should happen when the bus controller indicates a change from one condition (Program mode) to another (Fault mode). If this bit is set (1), the safe state operation of all four real outputs changes to that identified by the Fault State and Fault Value words. If this bit is reset (0), the module continues with the operation identified by the Program State and Program Value words.

Number of Counters (NumberOfCounters)

This 2-bit value indicates whether the module uses 1 counter, 2 counters, 3 counters, or 4 counters. The default value is 1 (2 counters).

Bit 01 Bit 00 Counters

001

012

103

114

IMPORTANT

Do not set this value while a counter or range is enabled (Ctr0En, Ctr1En, Ctr2En, Ctr3En, or RangeEn set to 1). Attempting to do so will result in a BadModConfigUpdate error.

See page 120 for a list of prohibited settings.

Filter Selection

Configuration Array Word 1 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Not

Filter Selection Filter_Z1

Filters and Corresponding Bits

Nominal Frequency Settings

FilterA0 Bit 1 - FilterA0_1 Bit 0 - FilterA0_0

FilterB0 Bit 4 - FilterB0_1 Bit 3 - FilterB0_0

FilterZ0 Bit 7 - FilterZ0_1 Bit 6 - FilterZ0_0

FilterA1 Bit 9 - FilterA1_1 Bit 8 - FilterA1_0

FilterB1 Bit 12 - FilterB1_1 Bit 11 - FilterB1_0

FilterZ1 Bit 15 - FilterZ1_1 Bit 14 - FilterZ1_0

None 0 0

0.01 ms minimum pulse width (0.0185 ms for the packaged controller)

0.5 ms minimum pulse width (0.715 ms for the packaged controller)

5 ms minimum pulse width (7.1 ms for the packaged controller)

FilterB1 Not

used

This value indicates the nominal filter frequency as shown in the table.

FilterA1 FilterZ0 Not

used

FilterB0 Not

used

FilterA0

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Chapter 4 Module Configuration, Output, and Input Data

IMPORTANT

Do not set these bits while certain counters or ranges are enabled. Attempting to do so will result in a BadModConfigUpdate error. See

page 120 for a list of prohibited settings.

Program Mode and Program State Run

Configuration Array Word 2 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Output Program Mode and Output Program State Run

Not used Out3

Program Mode (Out0ProgramMode through Out3ProgramMode)

The program mode bits configure the output for Hold Last State (HLS) or User-defined Safe State (UDSS) during Program State.

• 1 = Hold Last State

• 0 = User-defined Safe State

IMPORTANT

Program Mode and Program State Run apply only to certain controllers. Refer to your controller’s documentation for more information.

The packaged controllers’ embedded HSC does not support this feature.

PSR

Out2 PSR

Out1 PSR

Out0

Out3PMOut2PMOut1PMOut0

PSR

Program State Run (Out0ProgramStateRun through Out3ProgramStateRun)

Program State Run lets you specify, on a bit basis, that the output should continue to be controlled by the module as if it were in the Run state. That is, events on the module or changes in the output image will affect the physical outputs without regard to the Program_HLS or UDSS state indicated. When this bit is set, the corresponding Program Mode and Program Value bits are ignored.

ATTENTION: Selecting this option lets outputs change state while ladder logic is not running. You must take care to make sure that this does not pose a risk of injury or equipment damage when selecting this option.

IMPORTANT

This applies to a wide range of bits when Program State Run is selected, because presetting a counter, enabling a range, changing a mask, and changing configuration array settings can cause ranges and outputs to change state.

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Module Configuration, Output, and Input Data Chapter 4

Output Program Value (Out0ProgramValue through Out3ProgramValue)

Configuration Array Word 3 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Output Program Value

Not used Out3PVOut2PVOut1PVOut0

These bits are the values that will be applied to each of the real outputs when User-defined Safe State (UDSS) is set as described and the module is in Program state.

Output Fault Mode and Output Fault State Run

Configuration Array Word 4 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Output Fault Mode and Output Fault State Run

Not used Out3

FSR

Out2 FSR

Out1 FSR

Out0

Out3FMOut2FMOut1FMOut0

FSR

Output Fault Mode (Out0FaultMode through Out3FaultMode)

These bits configure the output for Hold Last State or User-defined Safe State during a Fault state.

• 1 = Hold Last State

• 0 = User-defined Safe State

Output Fault State Run (Out0FaultStateRun through Out3FaultStateRun)

IMPORTANT

This applies to a wide range of bits when Fault State Run is selected, because presetting a counter, enabling a range, changing a mask, and changing Configuration Array settings can cause ranges and outputs to change state.

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Chapter 4 Module Configuration, Output, and Input Data

Output Fault Value (Out0FaultValue through Out3FaultValue)

Configuration Array Word 5 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

5 Output Fault Value

Not used Out3FVOut2FVOut1FVOut0

These bits are the values that will be applied to each of the real outputs when User-defined Safe State is set as described and the module is in Fault state.

TIP

Outputs are also affected by PFT above.

Counter Maximum Count (CtrnMaxCount)

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

6 Counter 0 Maximum

16 Counter 1 Maximum

26 Counter 2 Maximum

36 Counter 3 Maximum

Count

Ctr0MaxCount

Ctr1MaxCount

Ctr2MaxCount

Ctr3MaxCount

This is the maximum count value allowed for counter (n). The count value cannot exceed this value. Allowable values are CtrnMinCount 1…2,147,483,647 (decimal).

The default value is 2,147,483,647 decimal for counters 0 and 1. The default value is 0 for counters 2 and 3.

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

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Module Configuration, Output, and Input Data Chapter 4

Counter Minimum Count (CtrnMinCount)

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

8 Counter 0 Minimum Count Ctr0MinCount

18 Counter 1 Minimum Count Ctr1MinCount

28 Counter 2 Minimum Count Ctr2MinCount

38 Counter 3 Minimum Count Ctr3MinCount

This is the minimum count value allowed for counter (n). The count value cannot fall below this value. This value must be less than CtrnMaxCount or a configuration error occurs. Allowable values are from -2,147,483,648 to CtrnMaxCount - 1.

The default value is -2,147,483,648 decimal for counters 0 and 1. The default value is 0 for counters 2 and 3.

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

Counter Preset (CtrnPreset)

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

10 Counter 0 Preset Ctr0Preset

20 Counter 1 Preset Ctr1Preset

30 Counter 2 Preset Ctr2Preset

40 Counter 3 Preset Ctr3Preset

This value can be used to change the current count value of countern on certain gate (Zn) events and when CtrnSoftPreset is used.

CtrnPreset must be greater than or equal to CtrnMinCount and less than CtrnMaxCount. The default value is zero.

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Chapter 4 Module Configuration, Output, and Input Data

Counter Hysteresis (CtrnHysteresis)

IMPORTANT

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

12 Counter 0 Hysteresis Ctr0Hysteresis

22 Counter 1 Hysteresis Ctr1Hysteresis

32 Counter 2 Hysteresis Ctr2Hysteresis

42 Counter 3 Hysteresis Ctr3Hysteresis

The Counter Hysteresis information does not apply to the L23E packaged controller because rate measurement is not supported.

The hysteresis value is the number of counts that should be disregarded in the calculation of the cyclic rate. If the count value changes by less than the hysteresis value, the rate is reported as zero, regardless of the actual rate at which the pulses are counted.

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

Counter Scalar (CtrnScalar)

IMPORTANT

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

13 Counter 0 Scalar Ctr0Scalar

23 Counter 1 Scalar Ctr1Scalar

33 Counter 2 Scalar Ctr2Scalar

43 Counter 3 Scalar Ctr3Scalar

The Counter Scalar information does not apply to the L23E packaged controller because rate measurement is not supported.

This value is used to scale the Rate value. The Rate value is divided by the Scalar value. The default value is 1 for counters 0 and 1. The default value is 0 for counters 2 and 3.

CtrnScalar can be used to determine RPM. To configure the Ctr[n].CurrentRate value to show an RPM value, set CtrnScalar to (counts per revolution)/60.

page 34 for more information.

See

IMPORTANT

For any counter being used, do not set Scalar to a value less than one or a configuration error will occur.

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Module Configuration, Output, and Input Data Chapter 4

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See of prohibited settings.

page 120 for a list

Cyclic Rate Update Time (CtrnCyclicRateUpdateTime)

IMPORTANT

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

14 Counter 0 Cyclic Rate Update Time Ctr0CyclicRateUpdateTime

24 Counter 1 Cyclic Rate Update Time Ctr1CyclicRateUpdateTime

34 Counter 2 Cyclic Rate Update Time Ctr2CyclicRateUpdateTime

44 Counter 3 Cyclic Rate Update Time Ctr3CyclicRateUpdateTime

This value is used to set the cyclic rate update time for the CurrentRate calculation. The value indicates the time in milliseconds from 1…32767. An invalid number causes a configuration error. The default value is 10 for counters 0 and 1. The default value is 0 for counters 2 and 3.

IMPORTANT

The Counter Scalar information does not apply to the L23E packaged controller because rate measurement is not supported.

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

Cyclic Rate Calculation Method (current rate) on page 32 for more

See information on cyclic rate.

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Chapter 4 Module Configuration, Output, and Input Data

Configuration Flags

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

15 Counter 0 Configuration Flags

25 Counter 1 Configuration Flags

35 Counter 2 Configuration Flags

45 Counter 3 Configuration Flags

Not used Linear Not

Not used Linear Not used

Operational Mode (CtrnConfig.OperationalMode_0 through

nConfig.OperationalMode_2)

Ctr

These bits apply to Counters 0 and 1 only.

This value determines how the A0 or A1 and B0 or B1 inputs are decoded when assigned to counter 0 or counter 1.

Storage mode Not used Operational mode

used

Storage mode Not used Operational mode

used

Set bit For function

CtrnConfig.OperationalMode_2 CtrnConfig.OperationalMode_1 CtrnConfig.OperationalMode_0

0 0 0 Pulse internal direction

0 0 1 Pulse external direction

1 0 0 Quadrature encoder X1

1 0 1 Quadrature encoder X2

1 1 0 Quadrature encoder X4

0 1 0 Up/Down Pulses

0 1 1 reserved

1 1 1 reserved

TIP

The Ctr1Config.OperationalMode bits are reserved if the Number of Counters equals 1. Attempting to set reserved bits will result in a configuration error.

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

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Storage Mode (CtrnConfig.StorageMode_0 through

nConfig.StorageMode_2)

Ctr

These three bits apply to Counters 0 and 1 only. They define how the module interprets the Z input, as shown below. Each bit works independently. If bit 0 and bit 2 are set simultaneously, a Z event causes the Current Count Value to be stored and then preset.

Set bit For function

CtrnConfig.StorageMode_0 Stores the Current Count Value on the rising edge of Z to

CtrnConfig.StorageMode_1 Holds the counter at its Current Count Value whileZ=1.

CtrnConfig.StorageMode_2 Presets the Current Count Value on the rising edge of Z.

Ctr[n].StoredCount in the input file.

IMPORTANT

TIP

IMPORTANT

Z = internal Z. Internal Z is the version of the Z input pin as modified by the output array control bits Z Invert and Z Inhibit.

The Ctr1Config.Storage Mode bits are reserved if NumberofCounters_1 and NumberofCounters_0 are set to 00 (one counter). Attempting to set reserved bits will result in a configuration error.

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

Linear (Ctr0Config.Linear through Ctr3Config.Linear)

This bit indicates how the counter operates upon reaching a CtrnMinCount or CtrnMaxCount.

• 0 = Ring Counter

• 1 = Linear Counter

See

page 28 for a description of ring and linear counter operation.

IMPORTANT

Do not change this value while the counter is enabled. Attempting to do so will result in a BadModConfigUpdate error. See page 120 for a list of prohibited settings.

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Chapter 4 Module Configuration, Output, and Input Data

Range High Limit (Range0To11[n].HighLimit) and Range Low Limit (Range0To11[n].LowLimit)

IMPORTANT

The Range High Limit and Range Low Limit words do not apply to the L23E packaged controller.

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

46 and 47 Range 0 High Limit Range0To11[0].HighLimit

48 and 49 Range 0 Low Limit Range0To11[0].LowLimit

52 and 53 Range 1 High Limit Range0To11[1].HighLimit

54 and 55 Range 1 Low Limit Range0To11[1].LowLimit

58and 59 Range 2 High Limit Range0To11[2].HighLimit

60 and 61 Range 2 Low Limit Range0To11[2].LowLimit

64 and 65 Range 3 High Limit Range0To11[3].HighLimit

66 and 67 Range 3 Low Limit Range0To11[3].LowLimit

70 and 71 Range 4 High Limit Range0To11[4].HighLimit

72 and 73 Range 4 Low Limit Range0To11[4].LowLimit

76 and 77 Range 5 High Limit Range0To11[5].HighLimit

78 and 79 Range 5 Low Limit Range0To11[5].LowLimit

82 and 83 Range 6 High Limit Range0To11[6].HighLimit

84 and 85 Range 6 Low Limit Range0To11[6].LowLimit

88 and 89 Range 7 High Limit Range0To11[7].HighLimit

90 and 91 Range 7 Low Limit Range0To11[7].LowLimit

94 and 95 Range 8 High Limit Range0To11[8].HighLimit

96 and 97 Range 8 Low Limit Range0To11[8].LowLimit

100 and 101 Range 9 High Limit Range0To11[9].HighLimit

102 and 103 Range 9 Low Limit Range0To11[9].LowLimit

106 and 107 Range 10 High Limit Range0To11[10].HighLimit

108 and 109 Range 10 Low Limit Range0To11[10].LowLimit

112 and 113 Range 11 High Limit Range0To11[11].HighLimit

114 and 115 Range 11 Low Limit Range0To11[11].LowLimit

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These values, which represent a count value or rate value, depending upon the programed Type, are used for range comparison. When the rate value is equal to Range0To11[n].HighLimit or Range0To11[n].LowLimit, Rangen changes state, becoming either active or inactive, depending upon the setting of the Range0To11[n].Invert bit.

Object Value (Current Count or Current Rate)

Invert Bit = 0

Invert Bit = 1

TIP

INACTIVE ACTIVE INACTIVE

ACTIVE ACTIVEINACTIVE

Low Limit High Limit or

Direct Write Value

Range0To11[n].HighLimit must be greater than Range0To11[n].LowLimit or a configuration error results.

Range Output Control (Range0To11[n].OutputControl)

IMPORTANT

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

50 Range 0 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

56 Range 1 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

62 Range 2 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

74 Range 4 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

80 Range 5 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

86 Range 6 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

98 Range 8 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

104 Range 9 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

110

116 Range 11 Output

Range 3 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

Range 7 Output Control Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

Range 10 Output Control

Control

Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

The Range Output Control words do not apply to the L23E packaged controller.

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Chapter 4 Module Configuration, Output, and Input Data

These 16-bit words indicate which outputs should be enabled when a range is active. When range n is enabled, this word is combined with the other range output masks as described in

OutputOffMask.15) on page 91 and on page 89.

Range Configuration Flags

Output Off Mask (OutputOffMask.0 through

IMPORTANT

The Range Configuration Flag information does not apply to the L23E packaged controller.

Configuration Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

51 Range 0 Configuration Flags

57 Range 1 Configuration Flags

63 Range 2 Configuration Flags

69 Range 3 Configuration Flags

75 Range 4 Configuration Flags

81 Range 5 Configuration Flags

87 Range 6 Configuration Flags

93 Range 7 Configuration Flags

99 Range 8 Configuration Flags

105 Range 9 Configuration Flags

Not used Inv Not used TypeNot used ToThisCtr

111 Range 10 Configuration Flags

117 Range 11 Configuration Flags

Not used Inv Not used TypeNot used ToThisCtr

ToThisCtr (Range0To11[n].ToThisCounter)

This 2-bit value indicates which counter is used in the range comparison for range n, as shown in the table.

Bit 01 Bit 00 Counter

000

011

102

113

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IMPORTANT

If this value is greater than NumberOfCounters, a configuration error occurs.

Type (Range0To11[n].Type)

This bit indicates which type of value to use for the range comparison in range n. This value and Range0To11[n].ToThisCounter determine the current value that is used in range comparison as the rate or count value.

Range0To11[n].Type Range Type

0 Count Value

1 Rate Value

Inv (Range0To11[n].Invert)

This bit indicates whether the range n should be active inside or outside the Range0To11[n].Low Limit and Range0To11[n].HighLimit window.

• 0 = The range n is active when the rate or count value is at or between Range0To11[n].Low Limit and Range0To11[n].HighLimit. When the range is active, the RangeActive.n bit is set. When the range is active and enabled, the outputs indicated in the Range Output Control word are activated.

• 1 = The range n is active when the rate or count value is lower than or equal to Range0To11[n].LowLimit or higher than or equal to Range0To11[n].HighLimit. When the range is active, the RangeActive.n bit is set. When the range is active and enabled, the outputs indicated in the Range Output Control word are applied.

TIP

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Ranges can be active in overflow, underflow, and rollover situations.

Chapter 4 Module Configuration, Output, and Input Data

Output Array

The output array, which consists of 34 words, lets you access the module’s realtime output data to control the module. The default value is all zeros.

IMPORTANT

Table 14 - Output Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

0 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Output On Mask

1 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Output Off Mask

The output array contains dynamic configuration data. The settings in the output array must be compatible with the settings in the configuration array.

For example, do not attempt to set Counter Control Bits for a given counter in the output array unless NumberOfCounters in the configuration array indicates that the counter is declared to be used.

All Not used bits (shaded in the Output Array - 1769-HSC Module and

CMX 5370 L2 Packaged Controller Embedded HSC table, below) must be

set to 0 or the InvalidOutput bit in the input array will be set. When the InvalidOutput bit is set, the entire output array is rejected until an output array that does not have this error is sent.

2 R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 Range Enable

10 Range12To15[0].HiLimOrDirWr Range High Limit or

12 Range12To15[0].LowLimit Range Low Limit

14 Range12To15[0].OutputControl Range Output Control

16 Range12To15[1].HiLimOrDirWr Range High Limit or

18 Range12To15[1].LowLimit Range Low Limit

Not used Not used

Not used RBF Not used Reset Blown Fuse

Not used RPWRREZZ Inh Z Inv D

InhDInv

Not used RPWRREZZ Inh Z Inv D

InhDInv

Not used RPWNot used D

Not used Not used

Not used Inv Not used LDWType Not used ToThisCtr Range Configuration

RU RO SP En Counter 0 Control Bits

RU RO SP En Counter 1 Control Bits

RU RO SP En Counter 2 Control Bits

Inv

RU RO SP En Counter 3 Control Bits

Inv

Direct Write Value

Flags

Direct Write Value

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Module Configuration, Output, and Input Data Chapter 4

Table 14 - Output Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

20 Range12To15[1].OutputControl Range Output Control

22 Range12To15[2].HiLimOrDirWr Range High Limit or

24 Range12To15[2].LowLimit Range Low Limit

26 Range12To15[2].OutputControl Range Output Control

28 Range12To15[3].HiLimOrDirWr Range High Limit or

30 Range12To15[3].LowLimit Range Low Limit

32 Range12To15[3].OutputControl Range Output Control

Not used Inv Not used LDWType Not used ToThisCtr Range Configuration

Flags

Direct Write Value

Not used Inv Not used LDWType Not used ToThisCtr Range Configuration

Flags

Direct Write Value

Not used Inv Not used LDWType Not used ToThisCtr Range Configuration

Flags

Table 15 - Output Array - L23E Packaged Controller Enbedded HSC

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

0 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Output On Mask

1 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Output Off Mask

2 R3 R2 R1 R0

10 RangeHighLimit_DWV_0 Range High Limit or

12 RangeLowLimit_0 Range Low Limit 0

Not used Not used

Not used RBF Not used Reset Blown Fuse

Not used RPW RREZ Z Inh Z Inv D Inh D Inv RU RO SP En Counter 0 Control Bits

Not used RPW RREZ Z Inh Z Inv D Inh D Inv RU RO SP En Counter 1 Control Bits

Not used RPW Not used D Inv RU RO SP En Counter 2 Control Bits

Not used RPW Not used D Inv RU RO SP En Counter 3 Control Bits

Not used Not used

Not used Range Enable

Direct Write Value 0

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Chapter 4 Module Configuration, Output, and Input Data

Table 15 - Output Array - L23E Packaged Controller Enbedded HSC (Continued)

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

14 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Range Output Mask 0

16 RangeHighLimit_DWV_1 Range High Limit or

18 RangeLowLimit_1 Range Low Limit 1

20 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Range Output Mask 1

22 RangeHighLimit_DWV_2 Range High Limit or

24 RangeLowLimit_2 Range Low Limit 2

26 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Range Output Mask 2

28 RangeHighLimit_DWV_3 Range High Limit or

30 RangeLowLimit_3 Range Low Limit 3

32 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out0Range Output Mask 3

Not used RInv Not used LDW Not used RCntrNum Range Configuration

Flags 0

Direct Write Value 1

Not used RInv Not used LDW Not used RCntrNum Range Configuration

Flags 1

Direct Write Value 2

Not used RInv Not used LDW Not used RCntrNum Range Configuration

Flags 2

Direct Write Value 3

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Not used RInv Not used LDW Not used RCntrNum Range Configuration

Flags 3

Module Configuration, Output, and Input Data Chapter 4

Output on Mask (OutputOnMask.0 through OutputOnMask.15)

Output Array Word 0 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Output On Mask Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

This word lets you turn on any output, real or virtual, when the corresponding bit is set. This mask is logically ORed with the range masks but logically ANDed with the Output Off Mask Word described on

page 91.

Using the Output On Mask, all of the module’s outputs can be turned on directly by the user control program, like discrete outputs. A bit which is set in the mask turns on the corresponding real or virtual output.

Output Control on page 36 and Output Control Example on page 43 for

See more information about output determination.

TIP

The corresponding Output Off Mask bit must be set to enable this bit.

Output Off Mask (OutputOffMask.0 through OutputOffMask.15)

Output Array Word 1 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Output Off Mask Out15Out14Out13Out12Out11Out10Out9Out8Out7Out6Out5Out4Out3Out2Out1Out

This word turns OFF any output, real or virtual, when the corresponding bit is reset. This mask has veto power over all the Range masks and the Output On Mask described above. It is logically AND’ed with the results of those masks.

Output Control on page 36 and Output Control Example on page 43 for

See more information about output determination.

TIP

This mask can be overridden when a safe state is indicated.

Range Enable (RangeEn.0 through RangeEn.15)

Output Array Word 2 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Range Enable R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0

Output Array Word 2 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Range Enable R3 R2 R1 R0

When the bit corresponding to the range number is set, Range[n].OutputControl is applied whenever the range is active.

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Chapter 4 Module Configuration, Output, and Input Data

RBF - Reset Blown Fuse (ResetBlownFuse)

Output Array Word 4 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Reset Blown Fuse

Not used RBF Not used

When the OvercurrentLatchOff bit is set and an overcurrent condition has occurred, the real output remains off until this bit is cycled from 0 to 1(rising edge).

Control Bits

Output Array Words 5 to 8 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Counter 0 Control Bits (Word 5)

Counter 1 Control Bits (Word 6)

Counter 2 Control Bits (Word 7)

Counter 3 Control Bits (Word 8)

Not used RPW RREZ Z Inh Z Inv D Inh D Inv RU RO SP En

Not used RPW Not used D Inv RU RO SP En

The control bits for counter (n) are described below.

TIP

IMPORTANT

The order of precedence for the Preset and Direct Write actions is as follows:

1. Preset

2. Direct Write

Setting any of the control bits under certain conditions of the NumberOfCounters value will result in the input error flag, Ctr[n].InvalidCounter. For more information, see IC - Invalid Counter (Ctr[1].InvalidCounter to Ctr[3].Invalid Counter) table on page 107.

En - Enable Counter (CtrnEn)

This bit, when set (1), enables the inputs to be counted. When reset (0), this bit inhibits any activity of the A or B inputs from affecting the count, pulse interval, and rate values.

SP - Soft Preset (CtrnSoftPreset)

A 0 to 1 transition of this bit causes counter (n) to be preset, changing the count to the value in CtrnPreset.

RCO - Reset Counter Overflow (CtrnResetCounterOverflow)

A 0 to 1 transition of this bit causes the corresponding Ctr[n]Overflow bit to be reset.

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Module Configuration, Output, and Input Data Chapter 4

RCU - Reset Counter Underflow (CtrnResetCounterUnderflow)

A 0 to 1 transition of this bit causes the corresponding Ctr[n]Underflow bit to be reset.

D Inv - Direction Invert (CtrnDirectionInvert)

This bit, when set, inverts the direction of the counter (n) as follows:

• If the CtrnDirectionInhibit bit is set when this bit is 0, the resulting direction is up, increasing counts.

• If the CtrnDirectionInhibit bit is set when this bit is 1, the resulting direction is down, decreasing counts.

D Inh - Direction Inhibit (CtrnDirectionInhibit)

This bit, when set, inhibits the direction of the input signal from being used by the module.

Z Inv - Z Invert (CtrnZInvert)

When set, this bit inverts the Zn value. The Zn value is also affected by the CtrnZInhibit bit. If the CtrnZInhibit is set, the module uses CtrnZInvert for all internal Z activities, preset, hold and store. Input state Zn is not affected by this bit.

Z Inh - Z Inhibit (CtrnZInhibit)

When set, this bit inhibits the Zn state from being used by the module. However, even if the counter is inhibited, it still will count the pulses at input. For example, if the counter is inhibited with count of 10 and there are 10 more pulses after which it was un-inhibited, then the current count instead of starting with 11 will be 21 for the next pulse.

RREZ - Reset Rising Edge Z (CtrnResetRisingEdgeZ)

A 0 to 1 transition causes the Ctr[n].RisingEdgeZ bit to be reset.

RPW - Reset Counter Preset Warning (CtrnResetCtrPresetWarning)

A 0 to 1 transition causes the Ctr[n]PresetWarning bit to be reset.

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Chapter 4 Module Configuration, Output, and Input Data

Range High Limit or Direct Write Value (Range12To15[n].HiLimOrDirWr)

IMPORTANT

Output Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

10 and 11 Range 12 High Limit Direct Write Value Range12To15[0].HiLimOrDirWr

16 and 17 Range 13 High Limit Direct Write Value Range12To15[1].HiLimOrDirWr

22 and 23 Range 14 High Limit Direct Write Value Range12To15[2].HiLimOrDirWr

28 and 29 Range 15 High Limit Direct Write Value Range12To15[3].HiLimOrDirWr

For the L23E packaged controllers embedded HSC, the ranges referred to in this section are numbered 0…3 instead of 12…15. The ranges in this section apply to only the 1769-HSC module and the CMX 5370 L2 packaged controllers embedded HSC.

This value can be used in one of two ways, depending on the setting of the Load Direct Write (Range12To15[n].LoadDirectWrite) bit.

When Load Direct Write = 0

When Range12To15[n].LoadDirectWrite = 0, then Range12To15[n].HiLimOrDirWr is used in the range comparison (range represents a count value or a rate value according to the programmed range type, Range12To15[n].Type).

When the range value is equal to Range12To15[n].HiLimOrDirWr, Rangen will change state. The range will become active or inactive depending on the Range12To15[n].Invert bit.

Range Value (Current Count or Current Rate)

Invert Bit = 0

Invert Bit = 1

TIP

INACTIVE ACTIVE INACTIVE

ACTIVE ACTIVEINACTIVE

Low Limit High Limit or

Direct Write Value

Range12To15[n].HiLimOrDirWr must be higher than the Range12To15[n].LowLimit or the InvalidRangeLimitn error flag in the input array will be set.

Range12To15[n].HiLimOrDirWr can be higher than the maximum rate or count value. For example, when the object value is a rate, Range12To15[n].HiLimOrDirWr can be programmed in excess of 1,000,000 with no configuration error.

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Module Configuration, Output, and Input Data Chapter 4

When Load Direct Write = 1

When Range12To15[n].LoadDirectWrite = 1, then Range12To15[n].HiLimOrDirWr is used to change the Ctr[n].CurrentCount to Range12To15[n].HiLimOrDirWr.

When the Range12To15[n].LoadDirectWrite bit transitions from 0 to 1, then Range12To15[n].HiLimOrDirWr is loaded into Ctr[n].CurrentCount (where n is the counter indicated in Range12To15[n].ToThisCounter).

TIP

When CtrnSoftPreset and a Range12To15[n].LoadDirectWrite to counter n are indicated at the same time, only the CtrnSoftPreset will occur. When more than one range indicates a Range12To15[n].LoadDirectWrite to a single counter, only the one from the lowest designated range will take effect.

Range Low Limit (Range12To15[n].LowLimit)

IMPORTANT

Output Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

12 and 13 Range 12 Low Limit Range12To15[0].LowLimit

18 and 19 Range 13 Low Limit Range12To15[1].LowLimit

24 and 25 Range 14 Low Limit Range12To15[2].LowLimit

30 and 31 Range 15 Low Limit Range12To15[3].LowLimit

This value is used in the range comparison. It is the complement of the Range12To15[n].HiLimOrDirWr value in setting the compare window.

When the rate or count value is equal to Range12To15[n].LowLimit, the range will change state – opposite of the action at Range12To15[n].HiLimOrDirWr. The range will become active or inactive depending on the Range12To15[n].Invert bit.

TIP

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Range12To15[n].LowLimit must be lower than the Range12To15[n].HiLimOrDirWr or the InvalidRangeLimitn error flag in the input array will be set.

Like Range12To15[n].HiLimOrDirWr Range12To15[n].LowLimit can extend beyond the minimum rate or count value.

When Range12To15[n].LoadDirectWrite is set, Range12To15[n].LowLimit is ignored.

Chapter 4 Module Configuration, Output, and Input Data

Range Output Control (Range12To15[n].OutputControl)

IMPORTANT

Output Array Words 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

14 Range 12 Output Control Range12To15[0].OutputControl

20 Range 13 Output Control Range12To15[1].OutputControl

26 Range 14 Output Control Range12To15[2].OutputControl

32 Range 15 Output Control Range12To15[3].OutputControl

This 16-bit word indicates which outputs should be on (corresponding bit set in this word) when a range is active. When Rangen is enabled and active, Range12To15[n].OutputControl will be logically OR’ed with other Range12To15[n].OutputControl masks and the OutputOnMask.n and so forth., as described on

page 89.

When Range12To15[n].LoadDirectWrite is set, Range12To15[n].OutputControl is ignored.

Range Configuration Flags (12To15)

IMPORTANT

Output Array Words 15 14 13 12 11 10 09 08 07 06 05 04

15 Range 12 Configuration Flags

21 Range 13 Configuration Flags

27 Range 14 Configuration Flags

33 Range 15 Configuration Flags

(1) Bit 04 is not used for the packaged controller.

Not used Inv Not used LDW Type Not used ToThisCtr

(1)

03 02 01 00

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Module Configuration, Output, and Input Data Chapter 4

ToThisCtr - Range Counter Number (Range12To15[n].ToThisCounter)

This 2-bit value indicates which counter will be used in the range comparison or Range12To15[n].LoadDirectWrite. The counter is indicated in the table below.

Bit 01 Bit 00 Counter

000

011

102

113

If Range12To15[n].ToThisCounter is set to a number larger than NumberOfCounters in the configuration array, then the InvalidCtrAssignToRangen error bit in the input array will be set.

Type - RangeType (Range12To15[n].Type)

IMPORTANT

For the L23E packaged controllers embedded HSC, the range type is fixed at 0, which sets the range type to count value. The ranges in this section apply to only the 1769-HSC module and the CMX 5370 L2 packaged controllers embedded HSC.

This bit value indicates which type of value to use for the range comparison in Range. That is, the Range12To15[n].ToThisCounter, from above, and this Range12To15[n].Type value determine the rate or count value, the current value which is compared to, for the range comparison. The type of value is indicated as follows:

• 0 = Count Value

• 1 = Rate Value

When Range12To15[n].LoadDirectWrite is set Range12To15[n]. Type is ignored.

LDW - Load Direct Write (Range12To15[n].LoadDirectWrite)

A 0 to 1 transition of this bit causes counter (n)’s current count value to change to the value of Range12To15[n].HiLimOrDirWr.

IMPORTANT

The write occurs according to the internal timings of the module and the system. For the most predictable results, the counter should be disabled or stopped while performing this action.

IMPORTANT

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 97

If both CtrnSoftPreset and Range12To15[n].HiLimOrDirWr transition to 1 during the same Output Array update, only the CtrnSoftPreset occurs. Range12To15[n].HiLimOrDirWr is ignored.

Chapter 4 Module Configuration, Output, and Input Data

Inv - Range Invert (Range12To15[n].Invert)

Indicates the active portion of Rangen. When Range12To15[n].Invert = 0, the outputs are activated when the range value is at or between the Range12To15[n].LowLimit and Range12To15[n].HiLimOrDirWr. When Range12To15[n].Invert = 1, the outputs are activated when the range is at or outside the range limits.

Object Value (Current Count or Current Rate)

Input Array

Invert Bit = 0

Invert Bit = 1

The input array, which consists of 35 words, allows read-only access to the

INACTIVE ACTIVE INACTIVE

ACTIVE ACTIVEINACTIVE

Low Limit High Limit or

Direct Write Value

module’s input data via word and bit access. The input array is described below. The functions are described in more detail in the sections following the table.

IMPORTANT

TIP

Table 16 - Input Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC

During the non-run states (program and fault), the module continues to update the input array (continues counting). Depending on the bus master, you may not see this.

Status bits for a particular counter reflect the configuration settings for that counter. To receive valid status, the counter must be enabled and the module must have stored a valid configuration for that counter.

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

1 Readback.0 through Readback.15 Readback

2 InvalidRangeLimit1

3 RangeActive.0 through RangeActive.15 Range Active

4 Ctr[0].CurrentCount Counter 0 Current

6 Ctr[0].StoredCount Counter 0 Stored

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Not used Z1 B1 A1 Z0 B0 A0 Input State

2 through InvalidRangeLimit1 5

InvalidCtrAssignToRange1 2 through InvalidCtrAssignToRange1 5

Gen Error

Invalid Output

Mod Config

Not used Out0Overcurrent through

Out3Overcurrent

Status Flags

Count

Module Configuration, Output, and Input Data Chapter 4

Table 16 - Input Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC (Continued)

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

8 Ctr[0].CurrentRate Counter 0 Current

10 Ctr[0].PulseInterval Counter 0 Pulse

14 Ctr[1].CurrentCount Counter 1 Current

16 Ctr[1].StoredCount Counter 1 Stored

18 Ctr[1].CurrentRate Counter 1 Current

20 Ctr[1].PulseInterval Counter 1 Pulse

24 Ctr[2].CurrentCount Counter 2 Current

26 Ctr[2].CurrentRate Counter 2 Current

30 Ctr[3].CurrentCount Counter 3 Current

32 Ctr[3].CurrentRate Counter 3 Current

Not used C0PW RV Not used IDWREZ CUdf COvf Counter 0 Status

Not used Not used

Not used C1PW RV IC IDWREZ CUdf COvf Counter 1 Status

Not used Not used

Not used C2PW RV IC IDWNot

Not used Not used

Not used C3PW RV IC IDWNot

CUdf COvf Counter 2 Status use d

CUdf COvf Counter 3 Status use d

Rate

Interval

Flags

Count

Rate

Interval

Flags

Count

Rate

Flags

Count

Rate

Flags

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Chapter 4 Module Configuration, Output, and Input Data

Table 17 - Input Array - L23E Packaged Controller Enbedded HSC

Word Bit Function

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

1 Out15Out14Out13Out12Out11Out10Out9Out8Out7Out

2 BadRangeLimit 30 BadRangeCtrNum30 ERR UBS MCfg

3 R3 R2 R1 R0

4 PresentCount_0 PresentCount_0

6 StoredValue_0 StoredValue_0

14 PresentCount_1 PresentCount_1

16 StoredValue_1 StoredValue_1

24 PresentCount_2 PresentCount_2

30 PresentCount_3 PresentCount_3

Not used Z1 B1 A1 Z0 B0 A0 Input State

Not used Range Active

Not used Not used

Not used C0PW Not

Not used Not used

Not used C1PW Not

Not used Not used

Not used C2PW RV IC BD

Not used Not used

Out5Out4Out3Out2Out1Out0DataEcho

used

OverCurFdbck Output030

Not usedBDW

CNE BDWREZ CUdf COvf Counter 1 Status

REZ CUdf COvf Counter 0 Status

CUdf COvf Counter 2 Status

Status Flags

Flags

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Rockwell Automation 1769-HSC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Summary of Changes

New and Updated Information

Table of Contents

Preface

Packaged Controller Functionality

Additional Resources

Counters

Inputs

Outputs

Hardware Features

Status Indicators

Counter Defaults

Module Operation Block Diagrams

Inputs

Outputs

Number of Counters

Summary of Available Counter Configurations

Input Filtering

Operational Mode Selection

Direction Inhibit and Direction Invert Output Control Bits

Pulse/External Direction Mode Selection

Pulse/Internal Direction Mode Selection

Up and Down Pulses Mode Selection

X1 Quadrature Encoder Mode Selection

X2 Quadrature Encoder Mode Selection

X4 Quadrature Encoder Mode Selection

Input Frequency

Counter Types

Linear Counter

Ring Counter

Modifying Count Value

Counter Enable/Disable

Z Input Functions

Inhibit and Invert

Direct Write

Preset/Reset

Rate/Timer Functionality

Pulse Interval Rate Calculation Method

Hysteresis Detection and Configuration

Scalar

Rate Valid

Output Control

Masks

Ranges

Overcurrent

Safe State Control

Output Control Example

Readback/Loopback

Power Requirements

General Considerations

Selecting a Location to Reduce Noise

Protect the Circuit Board from Contamination

Power Supply Distance

System Assembly

Mount the Module

Minimum Spacing

Panel Mounting

DIN Rail Mounting

Replace the Module within a System

Field Wiring Connections

Considerations for Reducing Noise

Remove and Replace the Terminal Block

Wire the Finger-safe Terminal Block

Wire the Modules

Terminal Door Label

Terminal Block Wiring

Wire Diagrams

Output Wiring

Configure the Module

Configuration Array

General Configuration Bits

Filter Selection

Program Mode and Program State Run

Output Program Value (Out0ProgramValue through Out3ProgramValue)

Output Fault Mode and Output Fault State Run

Output Fault Value (Out0FaultValue through Out3FaultValue)