Delta Plc The Password - Function Is Ineffective

Delta PLCs (specifically the DVP series, AS series, and AH series) are widely respected in the automation industry for their cost-effectiveness and reliability. One of their critical security features is the built-in password protection mechanism, designed to prevent unauthorized reading, writing, or modification of ladder logic programs.

To mitigate this vulnerability, Delta Electronics has released a patch and recommends users to update their PLC firmware to the latest version. Additionally, users are advised to: delta plc the password function is ineffective

The old software sends the password improperly, and the PLC interprets it as a normal read request. Delta PLCs (specifically the DVP series, AS series,