Rockwell Automation Publication 42EF-UM001A-EN-P - September 2015 69
Error Codes and Events
Appendix D
Error Codes and Events
When an event occurs, the device signals the presence of the event to the master.
The master then reads out the event. Events can be error messages and warnings/
maintenance data. Error messages are transmitted from the device to the
controller via the IO-Link master. The transmission of device parameters or
events occurs independently from the cyclic transmission of process data.
Error Codes
Error code Instance Code Note
No error APP ZERO Only applies for response telegram
Unspecific application fault APP 0x8000
Invalid index APP 0x8011
Invalid subindex APP 0x8012
Service temporarily unavailable APP 0x8020
Service temporarily unavailable (control) APP 0x8021
Service temporarily unavailable (sensor) APP 0x8022
Access denied APP 0x8023 Write attempt to read-only address
Invalid value range, parameter APP 0x8030
Parameter value too large APP 0x8031
Parameter value too small APP 0x8032
Application error APP 0x8081 Application does not respond
Application not ready APP 0x8082 Application does not respond
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