Setting up a tcp socket on specific port

General
1

Hi,

I have a server which emits continuous messages on port xx. I have made a python program to listen and list all messages coming from that server, though a tcp socket (AF_INET).
How can I make the same on node-red? I have tried with the tcp-request node, but it is showing a message only if triggered, and doe snot "keep" alive listening on that server/port.

2

Hi @fmarzocca ! Have you tried using the TCP In node instead of the TCP request?

3

Yes, but it does not connect to the TCP socket.
The TCP IN does not have a field to input the server's IP.

4

And in the TCP request I imagine you tried setting the return option to: never keep connection open ?

5

Yes, I did. Sorry not to have been so much verbose, but I am currently out of my main desk.
I'm afraid I should write my own node to handle handshaking with that socket.

6

If you know each message sent by this server is separated by a special character, you can set it to: "when character received is" for example: \n

7

Yes, that could be an idea. I will try, thank you!

8

Have you tried the TCP in node set to connect to?

Screenshot_20210127-201330
Screenshot_20210127-2013301920×1080 201 KB

9

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