EtherCat with 750-653 and Elsner Weatherstation P03

[MaLie]

Hello folks,

first communication between 750-653 and Weatherstation work so far with an plc 750-841.
I have to change the system to CoDeSys 3.5 and want to reach the Weatherstation over EtherCat Module 750-354 with a 750-653 module.
I got the FbModule_75x_653 from WagoSysFieldbusModule, unfortunately, the documentation says nothing about the connection from module to functionblock, maybe i miss something.

Step 2
Bind the module to an Fieldbus Process Image

VAR_GLOBAL
    abReadData  :   ARRAY[0..126] OF BYTE;
    abWriteData :   ARRAY[0..126] OF BYTE;
END_VAR

IF xUpdatFieldbusData THEN (*   set the new inputs for our module
                                and get the new outputs from our module
                                to write to the fieldbus synchronized to the fieldbus cycle
                            *)
    myModule653.SetNewPaInputs (ADR(abReadData[0]) , myModule653.PA_SIZE_INPUT);
    myModule653.GetNewPaOutputs(ADR(abWriteData[0]), myModule653.PA_SIZE_OUTPUT);

END_IF

How to connect the abReadData/abWriteData to the module?

I found some similar cases but only confusing me more.
Some without the xUpdateFieldbusData and some which put the arrays without a field in the fb.

thanks for help.

Max