PLC Mitsubishi FX2 64M Error 6402

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vasilevdim
Posts: 8
Joined: Tue May 28, 2013 7:27 pm

PLC Mitsubishi FX2 64M Error 6402

Post by vasilevdim » Tue Feb 06, 2018 2:44 pm

Hi, guys,

the problem is: Mitsubishi PLC FX2 64M with 2 red LED flashing -low battery and CPU; battery replaced, but CPU alarm persist. Connected to the PLC with GX Developer, using diagnostic of PLC revealed error 6402 (PARAMETER ERROR). In the HELP it says that the Managing Method is "stop the PLC, SELECT THE PARAMETER MODE, SET THE CORRECT PARAMETER" - CAN SOMEBODY ADVISE HOW EXACTLY TO DO THAT?

Ronnie
Posts: 11
Joined: Sat Jul 10, 2010 7:11 pm

Re: PLC Mitsubishi FX2 64M Error 6402

Post by Ronnie » Mon Feb 12, 2018 7:59 am

You have a memory capacity error.

This means the memory is set different to what is in the plc
The default is 8000 steps - check that

vasilevdim
Posts: 8
Joined: Tue May 28, 2013 7:27 pm

Re: PLC Mitsubishi FX2 64M Error 6402

Post by vasilevdim » Mon Feb 19, 2018 7:18 pm

Hi, Ronnie,

thanks for your reply.
Problem was solved by clear the memory and download the backup.

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