If the hardware has a built-in display and it is not itself locked by a password, you can perform a memory reset directly from the front panel. Press the button on the display to open the menu. Navigate to the Settings window.
Insert the SMC into a PC with a standard SD card reader. siemens s71500 password reset top
The CPU will detect the empty card and wipe its internal memory, effectively removing any password-protected configurations. 2. Factory Reset via the CPU Display If the hardware has a built-in display and
Reinsert the empty card into the CPU and power it back on. siemens s71500 password reset top
1. Resetting via the SIMATIC Memory Card (Standard Recovery)