hello freinds..

i am facing one problem related to the password protection in the logo plc.

i don't have the original backup , i have to upload the backup.

But when i am trying to upload the program, it shows that you have to give password to upload the program.

I don't have password and i don,t reset the password because i don't have origional backup..

please help me regarding to that.. 

Hi,

I think, no way to bypass the password.

contact local SIEMENS...

You can try every possibility ore use my pasword ****.

No, its not possible to get acces to your LOGO. Thats just the thing a passwordprotection must do.

The only way is to clear the hole LOGO programm, so you get a brand new LOGO with no programm. Then you can make a new programm for youtr LOGO

IN LOGO PASSWORD PROTECTION FOR PROGRAM NOT FOR LOGO PLC.

The only way is to clear the hole LOGO program,

I tested it on oba7 and oba8 connect your logo with pc then follow below attach png img

EIC_CONTROL

IN LOGO PASSWORD PROTECTION FOR PROGRAM NOT FOR LOGO PLC.

The only way is to clear the hole LOGO program,

I tested it on oba7 and oba8 connect your logo with pc then follow below attach png img

 Dear All,

Thanks For the reply..

So i have no option to crack the password.

Now i have to erase whole program.

Hello HVK i i had a very similar problem with a oba 6 plc i had to download a program from an old device that was faulty and change it with a new logo but the program was locked with a password and no one knew what it was, after going down various paths and trying different methods there was just no way to unlock it without the password.