# \[Announce\] node-red-contrib-opc-da

**URL:** <https://discourse.nodered.org/t/announce-node-red-contrib-opc-da/17648>\
**Category:** Share Your Nodes\
**Created:** [7 November 2019 19:14 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-opc-da/17648 "2019-11-07T19:14:55Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![Henjoe](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/henjoe/32/52335_2.png) [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Post date:** [28 April 2020 11:33 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-opc-da/17648/17 "2020-04-28T11:33:21Z")

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Hello I am having trouble using it.

> [@Node-red-contrib-opc-da Help](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676):
>
> Dear node-red Experts, Does anybody uses this node? I am having trouble using it. It makes my node-red server crash. I have MatrikonOPC Simulation installed on my local computer where node-red also residing on it. So here is my setup, I don't know what to put on the Domain since this is not manage by domain controller. So I just put WORKGROUP, I don't know if this is right. Can somebody tells me, what is wrong with my configurations? and here is the error I get after I deployed:

Can anyone knows what is my issue with my config?  
I am running it on Windows 10 OS, with lates Nodejs version.

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