micro850 connection

Question

micro850 connection

fernandoamorim1703 opened this issue 2 years ago · 5 comments

fernandoamorim1703 commented 2 years ago

A question, I'm trying to use node-red's ethernet/ip node, I made some changes to the library because of the multiple service.

But I am facing connection problem. The connection is not maintained, the PLC always sends an FYN flag or even an RST.

Could you tell me why?

Answer 1 · 2023-04-18T13:57:46.000Z

Why are you opening an issue on my project instead of node red's EIP module?

Answer 2 · 2023-04-18T14:00:03.000Z

I wanted to better understand the communication with the micro850

Answer 3 · 2023-04-18T14:09:32.000Z

I posted packets below of wireshark packets with the difference between CLX and Micro800. Maybe that will help.

https://www.plctalk.net/qanda/showpost.php?p=930765&postcount=28

You are trying to add Micro800 support to node-red?

Answer 4 · 2023-04-18T14:46:52.000Z

Thanks a lot for the file. I think it will do.

Exactly, I'm trying to add micro800 support to node-red's eth/ip.
I faced some difficulties until I found out that it didn't support multiple service packets.
Now I'm having a problem with the connection, after making the queries the plc sends an FYN.

Answer 5 · 2023-04-18T15:01:49.000Z

I'd pay close attention to the forward open. Micro800 doesn't use the port segment, which is what those packets are showing. I think I showed more of that if you read further in that thread.