Hello!

I have D425-2 PLC on my machine and last months it has started to stop in the such way:

1) Work normally 1day --- 3 weeks , than all is stopped and I see the LED's are orange/red (all of them)

2) I put backup which I made before on the CF card

3) Put CF inside, all is run

4) After some time - this problem again

I tried:

1) Change CF card (has bought the new one from Siemens)

2) Change D425-2 to the new one

All the same. After some time - stop. The error I see on the D425 LED display is 007b

Maybe it is something wrong with the power supply, just idea, now I am checking in this direction.

Would be great colleagues if you can share your thoughts what it can be or what is, for example, 007b.

Thank you in advance!