jl_004 Posted November 17, 2017 Report Share Posted November 17, 2017 hi my unitronics plc says "contact retailer" and password is required, i've been wondering how to reset it ? Quote Link to comment Share on other sites More sharing options...
DanT Posted November 17, 2017 Report Share Posted November 17, 2017 Hi; Is this a NEW , just purchased PLC - Model? Try 1111 for the password. else contact support@unitronics.com Is this in a piece of equipment already programmed? The programmer has set a password to lock the program from being uploaded. Contact the programmer/Equipment manufacturer to help on this. They may supply password(slim chance) or offer their service or a replacement PLC( at their price) Program Passwords cannot be reset if set by the programmer. There is NO Back door to a Unitronics PLC once a program password has been set by a programmer, or if the Upload Bit has not been set during a program download. Quote Link to comment Share on other sites More sharing options...
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