rest PLC

[Witek]

Hi, I have a model PLC JZ20-J-R31-N . I have to reset actual program .  Someone can tell me how can I do this procedure? 

I will be gratefull for the answer.

Grettings

[Flex727]

What do you mean by "reset"?

If you mean erase the program that's in there, then downloading a new program will do that automatically.

[Witek]

My PLC is locked a password and I can't enter a new program

[DanT]

Hi;

 

The M91  and JAZZ Series PLC's have 2 Passwords that can be set.

      1 Password   BLOCKS   ALL   Communications to the PLC ( No download, no upload, no devices that need communications to operate)

               When  this is set, then you have to know the password  to unlock  it.

      1  Password  allows communication, BUT does not allow UPLOAD  of the program unless you have the password.

      There is NO Backdoor to getting to the  program if these passwords are set

Refer to Help  -- Project properties for the explanations.

If the PLC was programmed by the machine manufacturer, then contact them. They had reasons to protect the PLC from being tampered with.

 

DanT