Hi all, Re [PR233](https://github.com/apache/plc4x/pull/233). I aim to use PLC4c with digital twins (codegen'd Simulink models) for metal industry and have it talk to Siemens S7 PLCs. Currently use a customized version of libnodave but PLC4x is interesting as it (eventually) works with multiple PLCs & has a C implementation.
In PR233 I have added a loopback test (write values->read them back -> check they match). That's all I need for above use case. To do this I will/did: - Added write functionality (as in PR) this took a fair bit of time, mostly getting to understand the existing code/datatypes/debugging slowly - this morning added error checking to the write responses. - I see the read responses are not really checked so I will add this - Will check/chase any memory leaks That's all. After that a few tests in MATLAB/Simulink. If that goes well I can probably help on other protocols in PLC4c. Cheers, Thomas
