# Edge OPC UA Omron FINS/TCP connection, tag status showing uncertain **URL:** \ **Category:** Ignition\ **Created:** [June 30, 2021, 7:21am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346 "2021-06-30T07:21:20Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [June 30, 2021, 7:21am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/1 "2021-06-30T07:21:20Z")
Hi All I am working on Ignition Edge, PLC = CJ2M-CPU35, using Omron FINS/TCP driver. Tag connections are fine, able to read and write. However sometimes when gateway and plc are powered off and powered back, all the tag status would become uncertain, with the circle ? icon, even though device connection status is Connected. Have tried to enable/disable the connection, on/off the plc, the tag status still remains as Uncertain. The only way is to restart the gateway(ie restarting the pc). Tried searching through the logs, but could only identify FinsWriteRequest warning: ```auto java.util.concurrent.TimeoutException: timed out after 2000ms at com.inductiveautomation.omron.fins.client.tcp.FinsTcpClient$sendCommand$timeout$1.run(FinsTcpClient.kt:103) at io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:672) at io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:747) at io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:472) at java.base/java.lang.Thread.run(Unknown Source) ``` Could someone advise how should i go about troubleshooting the problem? Many thanks in advance! ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [June 30, 2021, 11:57am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/2 "2021-06-30T11:57:41Z")
What version is this? IIRC, there was a bug fixed recently in Ignition’s OPC/UA server that was responsible for similar behavior. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [July 14, 2021, 2:52pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/3 "2021-07-14T14:52:11Z")
Hi Phil, im using Edge 8.0.16. Saw this post and realised they have the same issue too. > [@OPC-UA Server connected but tags in the Designer stills show Uncertain\_LastKnownValue](http://forum.inductiveautomation.com/t/opc-ua-server-connected-but-tags-in-the-designer-stills-show-uncertain-lastknownvalue/41785): > > I get the issues with the ignition 8.1.1 every time I using ignition after turn on my laptop. OPC-UA connected to PLC via ModbusTCP and I can check the tag value by OPC Quick Client. But that tags in the Designer still show Uncertain\_LastKnownValue. Each time get issue, I must be restart OPC-UA module. So, please help me to resolve this issues. (The same issues with Ignition 8.0.16, 8.017 and 8.1.0 ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 14, 2021, 3:07pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/4 "2021-07-14T15:07:54Z")
You might try upgrading to the latest 8.1.x version. 8.1.5 contained a fix for an issue that sounds similar: > Fixed a bug that caused tags to get stuck with Bad\_NotConnected or Uncertain\_InitialValue quality on startup or reconnect. I don't know for certain whether that affected 8.0.x versions or not. However if the problem is just that the device isn't responding, which your original post with the timeout issue is showing, then you just have something misconfigured either in Ignition or on the PLC side. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [July 14, 2021, 3:27pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/5 "2021-07-14T15:27:29Z")
Hi Kevin, thanks for replying. 1.The edge is connected to a mqtt server, version 8.0.16 as well. If i upgrade the edge to 8.1.x version, would there be any… ‘mismatch’ or causing any conflict in the communication? 1. Do you mean that the log i posted indicates that the device is not responding? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 14, 2021, 3:31pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/6 "2021-07-14T15:31:28Z")
There shouldn’t be… but you can always take a backup (installer should do this as well) and revert to 8.0.16 and restore it if things don’t work. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [July 14, 2021, 3:33pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/7 "2021-07-14T15:33:40Z")
Okay, will try upgrading the version, thank you for the advice! From the log that i have posted, do you mean that it indicates that the device is not responding? meaning is not a version issue? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 14, 2021, 3:58pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/8 "2021-07-14T15:58:56Z")
Well, a timeout is not a version issue, but if things are generally working except sometimes on startup or reconnect there is an Uncertain quality that sounded like an issue we fixed. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [February 18, 2022, 5:16am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/9 "2022-02-18T05:16:07Z")
Hi Kevin, would like to revive this topic. This issue has been observed in edge 8.1.7 as well, and i noticed the pattern. Whenever the system has been restarted, all the tag quality would either go Uncertain\_LastKnownValue or Bad After a OPC-UA module restart, most of the quality would be back to normal. However, there are still tags having uncertain/bad quality. Follow up by a Omron Driver module restart, then only it solves the issue. Is there any logs that i can monitor to identify the problem? ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [November 9, 2023, 7:11pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/10 "2023-11-09T19:11:22Z")
We had this issue this morning after updating from Ignition 8.1.28 to 8.1.33 - restarting OPC-UA resolved. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [November 10, 2023, 2:29am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/11 "2023-11-10T02:29:38Z")
Hi Dion.botha, yea it is possible to resolve by restarting OPC-UA. But the issue is that upon almost every system power restart, the tags would be unhealthy/uncertain again. Then again would have to restart the OPC-UA and Omron modules.. Are you facing this pattern as well? ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [December 18, 2023, 10:56pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/12 "2023-12-18T22:56:18Z")
Hi Yin, no, since I restarted the OPC-UA module I have not had the issue come up again (and the system definitely has restarted a few time since then). Hope you are/were able to resolve. ---
**Author:** ![yin.cheng](https://avatars.discourse-cdn.com/v4/letter/y/85f322/32.png) [@yin.cheng](https://forum.inductiveautomation.com/u/yin.cheng)\ **Post date:** [December 26, 2023, 2:44am UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/13 "2023-12-26T02:44:11Z")
Hi Dion, may i know what version you are using? ---
**Author:** ![dion.botha](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@dion.botha](https://forum.inductiveautomation.com/u/dion.botha)\ **Post date:** [January 18, 2024, 3:10pm UTC](https://forum.inductiveautomation.com/t/edge-opc-ua-omron-fins-tcp-connection-tag-status-showing-uncertain/48346/14 "2024-01-18T15:10:45Z")
I keep our systems mostly up to date. Currently Ignition 8.1.33, OPC-UA 9.1.33 (b2023101913).