Mcgs Hmi Password Direct

Mastering MCGS HMI Password: Defaults, Recovery, and Best Practices

Introduction

In the world of industrial automation, Human-Machine Interfaces (HMIs) are the gateways to your machinery data. MCGS (or昆仑通态 - Kunlun Tongtai) is a popular lineup of HMIs known for their cost-effectiveness and robust configuration via the MCGS Embedded software.

However, one of the most common support tickets in factories worldwide is the dreaded "MCGS HMI Password" lockout. Whether you are a maintenance technician who inherited a machine with no documentation, or an engineer trying to debug a screen, losing access to the HMI can halt production. mcgs hmi password

This article provides a definitive guide to everything related to MCGS HMI passwords: default credentials, hard reset methods, password recovery via scripts, and security best practices.

6. Appendix – Quick Reference

Common default/system passwords (historical MCGS units): Mastering MCGS HMI Password: Defaults, Recovery, and Best

System boot password:     111111  
Project upload password:  888888  
Silent restore password:  6  
Engineering mode:         000000  
Download auth:            (blank) or 111111  

(Verify exact behavior with your specific firmware version as recent updates may change behaviour.)

4. Software-side password management

In MCGS Embedded or MCGS Pro:

• Go to User Management > add/delete users and set passwords.
• To bypass a forgotten password: If you have the source project, delete the user login script in Run Window.

Step-by-Step: Creating User Groups

1. Open your project in McgsPro. Navigate to Tools → User Management.
2. Define Groups: Create at least three groups:
   • Group 0 (Administrator): Full access (Upload, Download, System Menu).
   • Group 1 (Supervisor): Can modify setpoints but not change logic.
   • Group 2 (Operator): View-only, no parameter changes.
3. Assign Passwords: Each user gets a unique alphanumeric password (MCGS supports up to 16 characters). Avoid simple numbers.
4. Link to Controls: In your HMI screen, for any "Set Parameter" button or "Trends Setup" window, go to the Security Attribute tab. Set the minimum authorization level required (e.g., Level 2 for operators, Level 1 for engineers).

Method 3: Hardware Reset (Factory Reset via Jumper)

Some MCGS HMI circuit boards contain a physical reset jumper or a dedicated "Clear Password" button.

• For older CE units: Open the back case. Look for a 2-pin jumper labeled "CLR_PWD". Short it with a jumper cap while powering on. Hold for 5 seconds.
• For newer Ti series: There is no hardware jumper. You must use the Emergency Boot Mode:
  1. Power off the HMI.
  2. Press and hold the "ESC" button (if available) or the bottom-right corner of the touchscreen.
  3. Power on. You will enter a "Safe Mode" where you can format the flash memory, erasing all data including the password.