Errors in KRC4 when IO Mapping EL6692 for CX9020

We have in X44-EK1100- EL6692--> EK1110 (CX9020). In WoV EL6692 slave setting we set 1byte out and 1byte in. After Deploying we get these error messages in KRC4 : error reading/writing, IO Mapping and Byte Config (see pict). In CX9020 we have defined 1byte in and one byte out and also linked these byte to variables. We have KSS8.6.6. and WoV 6.0.18. Any ideas?

Hi.

Only 1 byte out and 1 byte in is selected. Communication works now after better defining CX9020 PLC variables. Now also all the leds on the top/front of the EL6692 card are green. Mystery still is that all the error messages in Smartpad are still the same.

What /where/how is error byte ( defined)...