Problem with PLC

[jl_004]

hi my unitronics plc says "contact retailer" and password is required, i've been wondering how to reset it ?

 

[DanT]

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.