Rockwell Automation Logix5000 Controllers Controller Information and Status Programming Manual User Manual
Page 32
Chapter 3 Controller logging
Example: Retrieve the Unsaved Entry Count using a Get System Value (GSV) ladder instruction
Execution Modification Count
The Execution Modification Count tracks the number of changes that occur that
can change the behavior of a running controller. You can configure the counter to
include or exclude force changes.
The events that cause the Execution Modification Count to increment include the
following.
•
Online edits tested or assembled
•
Forces enabled or disabled (if so configured)
•
Program properties modified
•
Task properties modified
•
Controller timeslice modified
You can set this counter to a known value using an SSV instruction.
The following example rung of ladder logic shows how to retrieve the Execution
Modification Count by using a GSV instruction.
32
Rockwell Automation Publication 1756-PM015F-EN-P – October 2014