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CXA_SocketComm TCP

CXA_SocketComm TCP

Open
Occasional Contributor

Hi Community,

I am new to using CXA_SocketComm TCP. 

I manage to established connection from ctrlX to a TCP device. However i did not receive feedback from the device after sending a string. (see attached)

Looking for advice.

Warmest regards,

4 REPLIES 4

Open
Occasional Contributor

How to test if my TCP client is working?

Are there tools to host TCP server on my engineering PC and try sending a string from my ctrlX to my TCP server hosted on my engineering PC?

Warmest regards,

CodeShepherd
Community Moderator
Community Moderator

I created some examples for communication via TCP between ctrlX CORE and ctrlX COREvirtual. See "Communicate between a ctrlX COREvirtual and other applications [DOCU]". There I am using Node-RED but PLC works in a similar way.

Which function blocks exactly are you using in your example? Normally you have a TCP server on one side permanently running and a client connected to it waiting for getting data.

Open
Occasional Contributor

Hi CodeShepherd,

I am using IL_TCPConnectionAsync function block library. 

Thank you for your tip we tried setting up TCP communication in Node-red, connection is established however when we attempt to send a string it did not send to the device and no feedback from the device. 

We solved it by using Telnet communication in Node-red. It is unsure why it is behaving this way.

JordiLaboria
Established Member

Good morning, not if this is what you are commenting on. I pass you a document on communications in general and another on communication between XM and ctrlX Core in NodeRed using the IL_TCPCyclic module

Best Regards

Jordi Laboria

https://www.youtube.com/channel/UCzE-ieCIkyMsuvyE0UDji9g

E-Mail: jordi.laboria@boschrexroth.es

DCET/SLF4-ES

 

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