Hello,

i have an CM4xIo-Link module in ET200SP. I am currently using only Port 1 of the module and i've configured it with S7-PCT sw. (I am using TIA 15 and S7-PCT v3.5)

Is it possible to somehow read the diagnostcs buffer of the Port1, that I have when I open S7-PCT, directly on PLC using some SFC or SFB or anything.

If not, is it possible to read a led status of any single port (4 leds + all the rest). I ask this because I've read in the manual of CM4xIOlink when there is an error on the port the status led is blinking green and when there is no problem the led is green continuous.

Thank in advance!

See https://support.industry.siemens.com/cs/ww/en/view/82981502

The IO-Link Master module con only handle one diagnostic connection at one time:
You must be offline with PCT before calling one of the FBs. 

That's it!

Thanks!