Mcgs Hmi Password Work

Default passwords for MCGS HMI software (Kunlun Tongtai) are typically "123456" or "000000", depending on whether you are accessing the runtime environment, the system settings, or the configuration upload/download functions.

If you found this guide useful, share it with your control engineering team. And remember: a good password is random, long, and changed regularly—even on an HMI.

  1. Store Master_PW in LW100 instead of a fixed integer.
  2. Add an “Admin” screen where a user can enter a new value into LW100.
  3. The verification macro becomes: IF Entered_PW = LW100 THEN ...

Now, on each button or data entry object, use the "Visible" property with expressions like: mcgs hmi password work

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

Upload Protection: When attempting to retrieve a project from an HMI via Ethernet or RS-232, the MCGS Studio software will prompt for credentials if an application-level password is active. Default passwords for MCGS HMI software (Kunlun Tongtai)

2. Integer Overflow with Leading Zeros

A password like 0123 is interpreted as 123 (integer). If your stored password is 123, it will match, but an operator entering 0123 will see 123 in the numeric display. Train users or use string variables.

: Different security levels can be assigned to buttons (e.g., "Start" vs. "Reset Factory Settings"). Protect System Settings Store Master_PW in LW100 instead of a fixed integer

Timeout (Auto Logoff): To prevent a high-level user from walking away, add a Timer to call !SetCurrentLevel(0) after 5 minutes of inactivity.