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M90 Ladder upload program from old version


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I'm new beginner of M90 PLC. 

I want to upload the program from, M91-2-R2C, controller to my PC. I've downloaded latest version of 6.6.45.

I'm not sure this version is suitable with M91-2-R2C Model.  If I connect and upload it, will the existing program defect?

Please give me fully instruction to my senior friends.

 

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Hi;

U90 ladder is the program to use with all M90/91  PLC's and JAZZ Series

You can upload the program from the PLC  

     If the Prpgram is password protected, you enter the password.

 

Start by making sure you can communicate  with the PLC using the    RS232-CB1 Com Cable  + a USB to Serial Adapter if necessary.

Default Baud rate is 9600

Controller

      M90  OPLC   Settings

             Get Version   -- This will retrun info about the PLC you are connected   ( else you get a Com Error message)

 

If Successfull,   Now

     Controller        Upload   -- to get the program into your computer.       -- Save it right away before trying to modify the program.

 

   DanT

 

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