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emrebekar / node-red-contrib-opcda-client

Node-RED Opc DA reading and writing node
Apache License 2.0
21 stars 11 forks source link

Example to read Items #4

Open printetrain opened 3 years ago

printetrain commented 3 years ago

Hello i am a newgie about node red and opc . I am searching for an examble to read an Item . I had installed two version of opc. I can read Items with the version node-red-contrib-opc-da but I can not read Items from node-red-contrib-opcda-client. I Think that I need the properties about the opcda read opc

Thanks

vaniiplon commented 1 year ago

hi i am using matrikon simulation server. please help to connect with node opc da client to simulation server

emrebekar commented 1 year ago

Hi.

You can wire a trigger such as interval or anything else before read node.

7 Şub 2021 Pzr 13:08 tarihinde printetrain @.***> şunu yazdı:

Hello i am a newgie about node red and opc . I am searching for an examble to read an Item . I had installed two version of opc. I can read Items with the version node-red-contrib-opc-da but I can not read Items from node-red-contrib-opcda-client. I Think that I need the properties about the opcda read [image: opc] https://user-images.githubusercontent.com/76214035/107143312-b45ad680-6934-11eb-91c5-f3bd4a7c47f0.JPG

Thanks

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vaniiplon commented 1 year ago

hi, i had attached screenshot of configuration of opc da read node and error msgs i am getting opcda Please suggest what changes i need to do to connect to server

emrebekar commented 1 year ago

Have you applied the DCOM configuration?

15 Ara 2022 Per 12:48 tarihinde vnvasireddy @.***> şunu yazdı:

hi, i had attached screenshot of configuration of opc da read node and error msgs i am getting [image: opcda] https://user-images.githubusercontent.com/107458041/207827195-7b6d01ce-bd26-43cb-84cc-ef91476be559.JPG Please suggest what changes i need to do to connect to server

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vaniiplon commented 1 year ago

Yes i had done with reference to Matrikon document. Please suggest if any reference document for DCOM settings

WarmBoot commented 1 year ago

Yes i had done with reference to Matrikon document. Please suggest if any reference document for DCOM settings

@vnvasireddy I was getting that same error, but found a suggestion at https://github.com/termux/termux-packages/issues/9266 that seems to have gotten me past that particular error.

I added the environment variable:

image

Unfortunately, I'm now getting the popular "access denied" error, but at least that seems a step closer...