Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 15)

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 15
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.
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
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