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  • MVP 2023

Why did you change the processor? Lightning struck?

Controllers of the Samba or Vision series cannot be destroyed by software. Even if the screen is dark and the PLC does not start, there is a recovery procedure from the brick state.

If the PLC is new and has problems, then there is a manufacturer's warranty.

I don't know how to flash the loader to a new processor. This is probably copyrighted by Unitronics.

If the PLC does not start and it has normal processor voltages, you should try the information on this topic.

https://forum.unitronics.com/topic/6069-vision-bricked-issues-and-how-to-resolve-originally-was-v570-57-t20b-j-bricked/

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HI;

Based on the above,

You will have to replace the PLC,  They are not repairable.

You will need a copy of the orginal program to load into the new PLC.

Visilogic programming software is a Free Download from the Unitroncis website.

You should also get the USB Programming cable - for SM43  or SM70   ( SM35 uses the RS232-CB1  Com  Programming Cable)

Is there and Ethernet Card or CANBUS Card, or  Serial Com Card Installed?  -- Replace them also - they may have gotten damaged  also.

Contact the Machine Builder, or Unitronics sales for the closest distributor.

 

DanT

 

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