Instruction Manual
Table Of Contents
- 1769-UM006E-EN-P, Compact High-speed Counter Module User Manual
- Summary of Changes
- Table of Contents
- Preface
- 1 - Module Overview
- 2 - Module Operation
- 3 - Installation and Wiring
- 4 - Module Configuration, Output, and Input Data
- 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)
- Counter Maximum Count (CtrnMaxCount)
- Counter Minimum Count (CtrnMinCount)
- Counter Preset (CtrnPreset)
- Counter Hysteresis (CtrnHysteresis)
- Counter Scalar (CtrnScalar)
- Cyclic Rate Update Time (CtrnCyclicRateUpdateTime)
- Configuration Flags
- Range High Limit (Range0To11[n].HighLimit) and Range Low Limit (Range0To11[n].LowLimit)
- Range Output Control (Range0To11[n].OutputControl)
- Range Configuration Flags
- Output Array
- Output on Mask (OutputOnMask.0 through OutputOnMask.15)
- Output Off Mask (OutputOffMask.0 through OutputOffMask.15)
- Range Enable (RangeEn.0 through RangeEn.15)
- RBF - Reset Blown Fuse (ResetBlownFuse)
- Control Bits
- Range High Limit or Direct Write Value (Range12To15[n].HiLimOrDirWr)
- Range Low Limit (Range12To15[n].LowLimit)
- Range Output Control (Range12To15[n].OutputControl)
- Range Configuration Flags (12To15)
- Input Array
- Input State (InputStateA0 through InputStateZ1)
- Readback (Readback.0 through Readback.15)
- Status Flags
- Range Active (RangeActive.0 through RangeActive.15)
- Current Count (Ctr[n].CurrentCount)
- Stored Count (Ctr[n].StoredCount)
- Current Rate (Ctr[0].CurrentRate to Ctr[3].CurrentRate)
- Pulse Interval (Ctr[0].PulseInterval and Ctr[1].PulseInterval)
- Status Flags
- 5 - Diagnostics and Troubleshooting
- A - Specifications
- B - Program a 1769-HSC Module, CompactLogix Controller, and 845F Incremental Encoder with RSLogix 5000 Software
- C - Program a 1769-HSC Module, MicroLogix 1500 Controller, and 845F Incremental Encoder with RSLogix 500 Software
- D - Programming Quick Reference
- E - History of Changes
- Glossary
- Index
- Back Cover

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 5
Table of Contents
Preface
Packaged Controller Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 1
Module Overview
Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 2
Module Operation
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