| Model | Memory Type | Password Storage | Reset Method (Legitimate) | |-------|-------------|------------------|----------------------------| | S7-200 | EEPROM (integrated) | In system block | Factory reset via MICRO/WIN (wipes program) | | S7-300 | External MMC (Flash) | In MMC file system | Requires Siemens service tool (not publicly available) |

: Holding the CPU's MRES switch for roughly 9 seconds can reset the CPU and MMC to factory settings, effectively deleting the password and the program simultaneously.

Instead of risky third-party downloads, consider these legitimate methods to handle password-protected Siemens S7-200 and S7-300 units:

If this is for on industrial security, consider using a virtual PLC simulator (S7-PLCSIM) or a physically isolated test PLC with dummy data.