Tcpclient communication with thread in VB.NET

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Hi,
I'm using Net.Sockets TCPClient to record data from a instrument.
Because I need to continuously listen the output data from the instrument, then according to the data to communicate with some commands, I run the program with a thread(named Thread_A) and it seems work fine.

Becaused of some reasons, I want to send some commands manually with a button and get the reply from the Thread_A. I tried many methods but none worked, I think it because every TCP connection is independent.

When we use COM port, we can use a single port to communicate under a form. I'm wondering if it's possible to done the same way with TCPClient?
Or have any ideas to solve this question? Thanks!

What I have tried:

Tried many methods but none worked.

Posted 21-Dec-21 23:45pm

Hu Christian

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Richard MacCutchan 22-Dec-21 7:33am

No, COM ports are static serial connections, TCP connections are dynamic. What you want to do may be possible, but it depends on how the instrument behaves when it receives a command from you.

Hu Christian 22-Dec-21 14:48pm

Hi, Thanks for your reply, it saves me a lot of testing time. Thanks.

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