Hello, very good to everyone, delighted to transmit and receive knowledge. My CPU XP20CP1684 with automation studio 4.12 and RUMTIME 3.90
does not work the R/E led remains solid red the RYDE led is in Off and the S/E led is also in Off
what can we do to make our CPU come out again in this way?
Hi Julián,
Normally a solid red R/E light means that the PLC is in Boot or Service mode. However, if the RDY/F light is not on at all, I’m thinking it’s not even getting to that point.
A couple of questions for you:
Question 1. The PLC happened while working with the machine, it was working, it has NOT happened after a software update. The hardware has been working properly for 2/3 years without problems, it has not been replaced
Question 2. The connection via ethernet is dead, we know the IP but the controller is not found.
Unfortunately this sounds a lot like a hardware failure to me. It’s possible the issue is just with the CompactFlash card. If you have a spare card that you know works, you could try installing the Automation Studio project on it, or even just a blank project with the correct hardware for testing. If you can’t get the PLC to boot with a known-working card though, the issue is probably with the PLC itself. I’d recommend reaching out to your local B&R support contact to figure out what your options are.
We will try to try with a card like t flash new.
Thank you.
