# Node-red-contrib-opc-da Help

**URL:** <https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676>\
**Category:** General\
**Created:** [28 April 2020 11:20 UTC](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676 "2020-04-28T11:20:47Z")\
**Posts on this page:** 4\
**Page:** 1

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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 11:20 UTC](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676/1 "2020-04-28T11:20:48Z")

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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?

 ![Cap1](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/0/a005b5ab2f01f6ccdbbd6a986162258ee3362ddd.jpeg)

and here is the error I get after I deployed:

 ![cap2](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/7/370601f57ae400fe25cfed04aa5ad3a765999c1c.jpeg)

PS: I definitely sure that OPC simulation server is running since I tried to use OPC Explorer Client to test it and I get values.

Hope you guys, can help me.

Thank you !

Regards,  
Henjoe

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [28 April 2020 12:51 UTC](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676/2 "2020-04-28T12:51:18Z")

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First place I'd start is check the open and closed issues on the [github repo](https://github.com/netsmarttech/node-red-contrib-opc-da/issues)

If ...

- you are certain your settings are correct
- and you have checked your node-red console for any clues
- and you believe it to be an issue of the node

... post a new issue

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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 13:08 UTC](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676/3 "2020-04-28T13:08:07Z")

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Thank you Steve,

Will try this. unfortunately upon research on internet, I can't find any person who have successfully used this node. I was just hoping that at least one can say that this node is working well ☹

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [27 June 2020 13:08 UTC](https://discourse.nodered.org/t/node-red-contrib-opc-da-help/25676/4 "2020-06-27T13:08:07Z")

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