Good afternoon.
There was a problem connecting to S7-PLCSIM with CPU configuration 1512C-PN. The project was taken as a basis from the official website of Factory I/O. The CPU was replaced using the “change device” command. Function has been saved, as well as the cycle time and PUT/GET settings. However, when loading into S7-PLCSIM I get the “Error” indicator blinking. Diagnostics buffer displays messages like: I/O read access error(I address 512) in FC 9000.
P/S Similar problem when saving the original CPU (CPU 1511-1-PN), but deleting the modules.