Can't Download an OS to Vision 120

[thien]

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.

Thien

[Jas]

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

[thien]

Thank you.

It was a quick response. It works again.

Best regards.

Thien