The you are using (e.g., DOPSoft 2.0, DOPSoft 4.0).
Using a licensed copy of a Delta HMI Unlock tool (Model-specific for DOP-B series), a technician connected via the COM2 port. Within 90 seconds, the tool identified the password hash and reset it to "00000000." The line was back up in under 20 minutes. The total cost of downtime avoided: ~$45,000. The cost of the unlock software: $299. Delta Hmi Password Unlock Software
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If you do not need the program currently residing on the HMI and simply want to reuse the hardware for a new project, you can force a factory reset. This clears all passwords along with the existing application logic. The total cost of downtime avoided: ~$45,000
might allow for a full reset if you have the original source files. Contact Support: If you have proof of ownership, Delta customer support
Restricts users from overwriting the existing HMI program with a new design.
Before attempting to use third-party unlocking tools, try the factory default passwords often used in Delta's environment: Secondary: Welcome to Delta Methods for Unlocking & Password Recovery