If you are an integrator who has locked themselves out of a runtime function (e.g., you set a password to enter a setup screen and forgot it), you can write a rescue script.
Requirement: You must be able to download a new project to the HMI.
The Logic:
Create a new invisible button or a system timer that calls the !SetPassword() function to overwrite the forgotten password.
Sample Script (MCGS Macro Language):
' MCGS Script to Reset User Level 1 Password ' Place this in a "Login" button's script or a background loop!SetPassword("Level1", "000000") ' Resets Level 1 password to 000000 !SetPassword("Level2", "111111") ' Resets Level 2 password to 111111
' To clear password protection entirely: !SetPassword("Logout", 0)
How to execute:
Method 1 – Known backdoor for older MCGS:
For some older models (e.g., TPC7062K), you can use a USB drive with a special MCGSPASSWORD folder containing a blank PASSWORD.TXT file – but this no longer works on modern firmware.
Method 2 – Factory reset (data loss):
Use the HMI's bootloader menu (jumper or touch during power-on) → System Maintenance → Clear all data / Reset to factory. This erases the project. mcgs hmi password
Method 3 – Contact MCGS support with proof of purchase – they can generate a temporary unlock code.
To avoid production downtime in the future, follow these industrial standards:
If you are an integrator who has locked themselves out of a runtime function (e.g., you set a password to enter a setup screen and forgot it), you can write a rescue script.
Requirement: You must be able to download a new project to the HMI.
The Logic:
Create a new invisible button or a system timer that calls the !SetPassword() function to overwrite the forgotten password.
Sample Script (MCGS Macro Language):
' MCGS Script to Reset User Level 1 Password ' Place this in a "Login" button's script or a background loop!SetPassword("Level1", "000000") ' Resets Level 1 password to 000000 !SetPassword("Level2", "111111") ' Resets Level 2 password to 111111
' To clear password protection entirely: !SetPassword("Logout", 0)
How to execute:
Method 1 – Known backdoor for older MCGS:
For some older models (e.g., TPC7062K), you can use a USB drive with a special MCGSPASSWORD folder containing a blank PASSWORD.TXT file – but this no longer works on modern firmware.
Method 2 – Factory reset (data loss):
Use the HMI's bootloader menu (jumper or touch during power-on) → System Maintenance → Clear all data / Reset to factory. This erases the project.
Method 3 – Contact MCGS support with proof of purchase – they can generate a temporary unlock code.
To avoid production downtime in the future, follow these industrial standards:
