OPC UA Modbus bad quality tag

Hello i am having a problem,
i just add some tag for my modbus connection.
But quality is BAD,
what is unusual if i use OPC quick client, i can read the tag(see top of screenshot) but not suscribe (see lower par of screenshot).
i have many other tag on this same connection working fine.
but all what i need to add seems not working…
any idea what should i do ?

If you disable the “Span Gaps” advanced setting for that Modbus device in the Ignition Gateway does the subscribe for that tag start working?

1 Like

Yes it solves the problem.
Thank you for quick answer.

Hello Kevin,

I have identical issue and the span gaps setting didn't fix it.Also I have an similar modbus device and that works but this one doesn't when subscribed.Ignition Version 8.1.22
Any Insights?

I want to thank you, @Kevin.Herron . I was experiencing the same issue with a Modbus tag showing bad quality, and your advice helped me resolve it