Rockwell Automation Logix5000 Controllers Controller Information and Status Programming Manual - Manual (Page 28)

Chapter 3 Controller logging
You can retrieve the current state of the automatic write setting by using a CIP
Generic message type and a service type of Controller Log Automatic Write Get.
Use the following rung of ladder logic and message instruction configuration to
get this value.
Example: Automatic Save Get ladder instruction and configuration dialog box
28 Rockwell Automation Publication 1756-PM015F-EN-P – October 2014