this is a very basic question, but I am struggling to understand what I need to do to set up a TCP communication with a S7-1200 CPU. I want to use the TSEND_C and TRCV_C. I know the PLC's and the other partner's IP and port, and I know that I need to assign different ID's for sending and receiving. What I don't understand is: Do both blocks need to be active at the same time?
Here's an example of how I imagine this works:
The TSEND_C sends some data over to the partner unit which then sends an acknowledge to the TRCV_C and once that's received, some other data get's send and TRCV_C receives another acknowledge and so on. (see attached picture)
Thank you!
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