Siemens fixed this in firmware V2.8 and V3.0. If your CPU runs newer firmware, this exploit fails.
This report outlines the procedures for resetting lost or forgotten passwords for a . Executive Summary siemens s71500 password reset top
Use a PC with a SIMATIC card reader to empty the card or load a simple project without password protection. Power Down: Turn off the power supply to the S7-1500 CPU. Siemens fixed this in firmware V2
Resetting a Siemens S7-1500 password is not like resetting a router. You will lose the program. The for most users is the Hardware MRES switch, followed by reloading a clean backup. siemens s71500 password reset top
However, there is a recurring nightmare that plagues automation engineers and maintenance technicians:
Power down the PLC and remove the SIMATIC Memory Card.
