To prevent this issue from recurring, implement these simple steps:
But here is the ultimate advice: If the HMI controls a critical production line (boiler, chemical mixing, conveyor sorting), do not risk bricking it. Contact a local Proface Systems Integrator or Proface America’s support line. For a service fee, they can usually reset the device within 24 hours using proprietary JTAG interfaces.
project file on your PC, you can find or change the password without touching the HMI. Open your project in Navigate to [Common Settings] [Security Settings] Here, you can view the defined for different security levels (Level 1, 2, 3, etc.).
ProFace (a brand of Pro-face America, now part of Schneider Electric) HMIs are widely deployed in manufacturing, energy, and infrastructure automation to control Programmable Logic Controllers (PLCs). Password protection is critical for preventing unauthorized changes to operational parameters. However, lost credentials pose a significant operational risk, leading to production downtime. This paper examines the official and semi-official methodologies for regaining access to ProFace units (GP, SP, and LT series) when legitimate credentials are unavailable. It focuses on backdoor procedures, project file manipulation, and hardware-level resets while strictly adhering to proof-of-ownership requirements. proface hmi password unlock
Always keep a copy of the .prx file on a secured company server or a physical SD card stored inside the electrical cabinet.
If the custom password is forgotten, Pro-face typically requires a "scorched earth" approach to regain access:
Use the "Information Label" feature in GP-Pro EX to leave contact info for the original programmer. Conclusion To prevent this issue from recurring, implement these
Before trying technical workarounds, audit your local networks and engineering laptops.
: If you do not have the password, you can often "Force Download" a new project to overwrite the old one, which resets the security settings. 4. Bypassing Screen Security Levels
If default passwords fail, you must use Proface’s own software. This is the safest, non-destructive method. You will need a Windows PC, a USB cable (Type A to Type B or Ethernet), and a licensed copy of . project file on your PC, you can find
If you have the project file but not the transfer password, you can create a "clean" project:
To avoid critical downtime caused by locked HMIs in the future, implement a strict security management workflow.
Ensure that system integrators provide unmapped, password-free source code backups upon project completion and sign-off.