: Some HMI systems, like the Siemens Unified panels often compared in automation forums, may lock users out after several invalid attempts. Chinese Interface

Each group is assigned a numerical authority level (0–255). Ensure the object you are trying to control (like a button or screen jump) has its "Permission" level set to match the user's group level.

Level 0 is traditionally set as "empty" for unrestricted basic access.

IF Data_Entry = Correct_PW THEN !SetCurrentLevel(15) // Internal MCGS command to change user level to 15 !SetCurrentUser("Verified_Operator") User_Status = "Access Granted" ELSE !SetCurrentLevel(0) // Demote to guest User_Status = "Access Denied" ENDIF

MCGS HMI is a software-based system that enables operators to interact with industrial control systems, such as Programmable Logic Controllers (PLCs), Supervisory Control and Data Acquisition (SCADA) systems, and other automation devices. The MCGS HMI provides a graphical interface for monitoring and controlling industrial processes, allowing operators to visualize data, configure settings, and perform various tasks.

: Accessing the HMI system settings via hardware dip switches to reset lost administrative passwords.

Prevents unauthorized transfer of the program from the HMI to a PC (uploading) or vice versa.