Use Windows Explorer to delete the user program files. Delete the S7_JOB.S7S file and the SIMATIC.S7S folder. CRITICAL: Do NOT format the card in Windows.
This is the most common method if you cannot go online due to the forgotten password. By clearing the SIMATIC Memory Card , you force the PLC to start with an empty configuration. Power off the CPU and remove the SMC. Step 2: Insert the card into a standard PC card reader.
Do NOT delete hidden files like __LOG__ or crdinfo.bin , as these make the card recognizable to the PLC. siemens s7-1500 password reset
Within 3 seconds, switch back to and then back to STOP . Password Reset via SMC Factory Reset (TIA) Reset via Display Data Loss Yes (Total) Yes (Total) Yes (Total) Requires PC Yes (Card Reader) Yes (TIA Portal) Hardware Access Online Access
If you can still establish an online connection (e.g., if you have "Read access" but lost the "Write access" password), you can use TIA Portal to perform a factory reset. Use Windows Explorer to delete the user program files
Many S7-1500 models feature an onboard display that allows for a password reset without a PC. Navigate the menu to . Confirm the selection with OK .
Do you have a to reload onto the PLC after the reset? This is the most common method if you
Forgotten or lost passwords for a Siemens SIMATIC S7-1500 PLC Go to product viewer dialog for this item.
Resetting via the display deletes the password for protecting confidential PLC configuration data. 4. Manual Hardware Reset (Mode Selector)
Hold the selector in the position until the RUN/STOP LED lights up steadily for the second time (approx. 3 seconds), then release it.