i have a PLC SIEMENS s7 200 smart cpu sr40 alarm. after i change new cpu and download program to new CPU, cpu model is same. But my system don't work, RUN led green, can you help me?
I'm not sure, but I think in our community no
if you are want answers share more info.
what this mean "alarm", "don't work", etc.
what your experience in s7200?