Rockwell-automation Logix5000 Controllers Controller Information and S Manual de usuario descargar pdf (Pagina 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

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Rockwell-automation Logix5000 Controllers Controller Information and S Manual de usuario Pagina 32