The parameter type has been changed from type WORD to an array of located words.
Control Expert Comm EFBs no longer accept a single WORD address for the communication field because more than one WORD is written. So the converter introduces an artificial array (shown in the conversion report) that can be reached from the project tree through the appropriate hyperlink:
"For var WORD1 type ARRAY[0..0] OF WORD generated"
The array has a single word size because the converter can not determine its size. The user, therefore, needs to manually configure the correct array size.