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Can't Download an OS to Vision 120

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Hello everybody.

I have an old V120-12-R1. When I was downloading an OS into the controller I got a power suply disconnection. Now I can not connect to the controller any more by the serial communication RS232.

Is there any one know how I can resolve the problem?

Thanks beforhand.


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You can try putting the PLC into bootstrap mode and reinstalling the OS.

To enter bootstrap:

- With the power off, hold down the <I> + <ESC> keys

- Plug power in with these keys held

- Controller will now be in bootstrap mode

- Make sure to communicate with the PLC at max baud rate(57k) and physical COM port 1

- Reinstall OS

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