actually yes. If you use S7 Communication in a single sided configured connection, like I mentioned, you use functions in the PC that are comparable to PUT / GET in the PLC. The PLC that runs as S7 Server doesn't have to do anything. Everything is being done within the PLC OS itself. The PC has with this S7 Connectioncomplete access to the I / Q, DB, M and C areas within the PLC.

Best regards