Delta HMI programming is done via DOPSoft or DIAScreen (under the umbrella). Delta Electronics Methods for Unlocking/Resetting HMI Projects
If you’ve lost or forgotten an administrator password for a legitimate Delta HMI you own or manage, I recommend: Delta Hmi Password Unlock Software
Restrict operator access to specific "Security Levels" (Levels 1–8) within the active interface. Legitimate Recovery and Reset Methods Delta HMI programming is done via DOPSoft or
How do I set a password for projects on HMI? - Delta Electronics - Delta Electronics If you have lost access
If you have lost access to your Delta HMI, it is recommended to use official channels rather than third-party crackers:
While some sites like PLC247 and UnlockPLCBd offer these services for a fee or as "free" downloads, they are not endorsed by the manufacturer. Users on forums like Reddit's r/PLC emphasize that documentation and proper password handovers from OEMs are the only reliable long-term solutions.