We upgraded to 8.1.4 and found that a problem occurred with all our Allen-Bradley devices. We are using
- A-B CompactLogix (Legacy)
- A-B Logix Driver
- A-B ControlLogix (Legacy)
- A-B SLC
If we use the gateway’s OPC Quick Client we can see tag values.
The tag browser is reporting “Bad failure” for each tag.
- I’ve upgraded to 8.1.5 to see if there was a patch but there was no change.
- There is nothing related to the A-B driver in the nightly changelog.
- There doesn’t seem to be anything related in the error log.
Has anyone any ideas?