Hi, I've problem with RED LED in Siemens 1200. I conected B&R X20IF103-1 (conections s71200 - Robot Comau) via Profinet with S7 1200. Comunications is ok, but red led is flashing. I think the X20IF103-1 has two port and s71200 see only one conected, the secend one is not conected and 1200 is flasing red led. What shall I do to turn off red led.

Hi,

did you check the topology view?  Maybe there is something wrong there.

Yes I did. I tried many combinations and many ways, but i read about OB32, if I'm right, I can confirm this error or chose what s71200 has do with it (stop or ignore error).