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I got this information from forum. Please read for detail. Sometime We need this method to get solution.
Hi, I test a method for find password from CQM1H-CPU21(51-61) and share with all.
it’s very easy: you must install (Plc Backup Tools V6.0) then select UM option and upload from PLC, after this, you open UM file with any HEX Editor program. Now you can see password in 0590h memory address.This metod tested for C200-CPM1- CQM1-CQM1H.
For Download:
1. PLC Backup Tools V6.0
http://mega.1280.com/file/TZVPLO29/
2. HEX Editor
http://mega.1280.com/file/O36GM9PA/
Note: You can see password in 0590h memory address from CQM1H-CPU51/61 , but can not upload program.
Hi Williamziam,
Many thanks for the help on the Omron password recovery.
I have CQM1-CPU 21 with UM read protected I mean with password protection in the program and I have followed all step you are given but still I’m unable to identifier 0590h memory address from this CPU because I’m haveing UM and UMF file which you can easly open with HEX Editor.
Please clarifier how I can read this address and identifier the password because it needs only 4 digits or letters.
I will appreciate to hear soon from you.
Best regards,
John Faustin
Vision selectronics Ltd
Hi Williamziam,
Many thanks for the help on the Omron password recovery.
I have CQM1-CPU 21 with UM read protected I mean with password protection in the program and I have followed all step you are given but still I’m unable to identifier 0590h memory address from this CPU because I’m haveing UM and UMF file which you can easly open with HEX Editor.
Please clarifier how I can read this address and identifier the password because it needs only 4 digits or letters.
I will appreciate to hear soon from you.
Best regards,
John Faustin
Vision selectronics Ltd
Hi Williamzian,
Thank you for sharing.
It really helps.
Regards,
Daniel P. Jay
You’re so @%$# right.
please we need the programs to unlock my cqm1 cpu41. do you can help me. i follow the links but i don’t can find the download button. please help me
Link not working please upload once again
file not found…
link lain…