Fix — Unlock S7300 Plc Password Work
Users can read data and upload blocks from the PLC to a PC without a password. However, they cannot modify or write any data back to the PLC.
: Keep holding the MRES switch for roughly 9 seconds until the STOP LED stops flashing and stays lit continuously.
Turn the CPU key switch to the "STOP" position. Remove the MMC: Remove the Micro Memory Card from the CPU.
Users can read data and upload blocks from the PLC to a PC without a password. However, they cannot modify or write any data back to the PLC.
: Keep holding the MRES switch for roughly 9 seconds until the STOP LED stops flashing and stays lit continuously.
Turn the CPU key switch to the "STOP" position. Remove the MMC: Remove the Micro Memory Card from the CPU.