# Node Red OPCUA client updates the tag incorrectly when subscribed
**URL:** https://discourse.nodered.org/t/node-red-opcua-client-updates-the-tag-incorrectly-when-subscribed/62208
**Category:** Industrial
**Created:** [5 May 2022 02:37 UTC](https://discourse.nodered.org/t/node-red-opcua-client-updates-the-tag-incorrectly-when-subscribed/62208 "2022-05-05T02:37:32Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@dinesh](https://discourse.nodered.org/u/dinesh)
#### Post date: [5 May 2022 02:37 UTC](https://discourse.nodered.org/t/node-red-opcua-client-updates-the-tag-incorrectly-when-subscribed/62208/1 "2022-05-05T02:37:32Z")
Hi,
I'm using node red OPC UA client to read data. It actually works fine.
The problem is when I unsubscribe and resubscribe, it incorrectly set a boolean tag to true even though it is in false state.
I then have to manually ON the physical signal and OFF it, so that it detects it correctly in the false state.
As mentioned earlier, this only happens when I subscribe at startup and not all tags are affected.
Is there a way to avoid this false trigger at startup from happening? If there is any work around is also fine.
thank you
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [4 July 2022 02:37 UTC](https://discourse.nodered.org/t/node-red-opcua-client-updates-the-tag-incorrectly-when-subscribed/62208/2 "2022-07-04T02:37:43Z")
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