96 Rockwell Automation Publication 5032-UM001A-EN-P - April 2023
Appendix B Troubleshoot Your IO-Link Device
Use CIP Messages to Retrieve the IO-Link Event Log
To retrieve the IO-Link event log, follow the definition of the Event Log object (class 0x41) that
is defined in the CIP Specification Volume 1 and Volume 7C.
Table 27
defines the format of each event log entry.
You can use either attribute 14 or 22 to retrieve the event log.
To retrieve the Event Log for an IO-Link port, use a CIP message with the following
specifications:
• Communication Path = To IO-Link master module
• Instance = Port Number + 1
To retrieve the Event Log for an IO-Link device, use a CIP message with the following
specifications:
• Communication Path = To IO-Link device
• Instance = 1
Table 27 - Event Log Entry in Get IO-Link Event Log Response
Byte Offset Bit Offset Parameter
0
0…2 Reserved
3 Event Location (always 1 for IO-Link master module)
4…5 Event Type
6…7 Event Mode
1…2 — Event Code
3…10 —
Timestamp (only exists when IO-Link Event Timestamp is enabled in
the Module Definition for the IO-Link master module)
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