Rockwell Automation Logix5000 Controllers Controller Information and Status Programming Manual - Manual (Page 51)

Change detection Chapter 4
Bit number Event description
22 Removable media inserted
23 Safety signature created
24 Safety signature deleted
25 Safety lock
26 Safety unlock
27 Constant Tag value changed
28 Multiple constant Tag values changed
29 Constant Tag attribute cleared
30 Constant Tag attribute set
31 Custom Log Entry Added
32 Correlation Affected. Indicates a change occurred in the controller that affects the synchronization
between the controller and the project file that was downloaded to it.
Tip: Correlation Affected can include detection of a component that has been created, deleted, or
modified, or logic that has been modified. Including the Correlation Affected event updates the
audit value for these types of changes, even if other similar events (such as Online edits
modified controller program or Task properties modified) are masked.
33 Safety signature delete inhibited in Run mode
34 Safety signature delete allowed in Run mode
35 Data log or Alarm log cleared
36 Program connection modified
You use the Security tab in the Controller Properties dialog box (available in
version 20 and later of the application) to configure Change Detection.
Change detection in Logix
Designer Application
Rockwell Automation Publication 1756-PM015F-EN-P – October 2014 51