Quality: [Bad_NoDataAvailable]

Titus_Lepic · October 11, 2022, 8:14pm

Ignition 7.9.5. I created a new OPC tag, but the value is showing up as "null." When trying to read the configured tag from the quick client, I get the error "Quality: [Bad_NoDataAvailable] No data is currently available for reading from a non-blocking stream." However when I read directly from the device in the quick client, the data is showing correctly. I've tried disabling and re-enabling the device, but no luck. What am I missing?

Thanks.

Titus_Lepic · October 12, 2022, 4:54pm

Update: All new OPC tags have this behavior, regardless of what PLC I'm connecting to. All existing tags work correctly.

andrews · October 12, 2022, 5:20pm

Maybe try restarting the gateway? That sounds pretty unusual.

Titus_Lepic · October 12, 2022, 5:32pm

Restarting the OPC-UA module fixed it. Thanks.

andrews · October 12, 2022, 5:33pm

Don't forget to mark it as solved

PRASHANTH_KAKKIRALA · September 4, 2023, 4:26am

I'm facing this issue even after restarting the Gateway. Any other suggestions?

I'm using OPC UA Sever- OPC DA Sever- DeltaV Controller configuration using OPC Tunneler

PRASHANTH_KAKKIRALA · September 5, 2023, 12:56pm

Unable to clear this error. Any help would be appreciated.

Romain_Deux · November 29, 2023, 5:23pm

Hello I have the same problem after restarting OPC UA module. I use an OPC Tuneller as well.