Adopted snap7 communication libraries to connect 200 smart and PC interface, I want to be able to real-time refresh their connection status, such as if the cable is broken, can refresh their state of the connection is broken,
I thought it was the connected function, can I try later found that even if the cable is broken, the connected function returns or true;
So, which Daniel can explain?
Which API is capable of detecting snap7 PLC and PC connection status?