If the HMI is locked at the system level and you cannot access the configuration, some MCGS TPC models have a physical reset button.
Create a new invisible button or a system timer that calls the !SetPassword() function to overwrite the forgotten password.
For older versions of MCGS, certain "Super Passwords" existed in the industry (often based on the HMI's internal clock or ID), but these have been largely patched in newer versions for better security. 5. Best Practices for HMI Security mcgs hmi password
A written statement on your company letterhead, stamped with the official seal, asserting that the project was developed by your company or that you are the legal owner of the HMI hardware.
For TPC series HMI models that have a physical reset button, there is an alternative hardware method: If the HMI is locked at the system
Managing lost credentials in an MCGS environment often depends on the specific project configuration:
If you are locked out of system-level settings or performing a factory reset, these standard codes are often used: The most common way to implement password protection
!SetPassword("Level1", "000000") ' Resets Level 1 password to 000000 !SetPassword("Level2", "111111") ' Resets Level 2 password to 111111
Double-click the sensitive HMI button or screen object to open its properties.
The most common way to implement password protection on an MCGS HMI is through the built‑in User Authority Management tool.