CIL Generator Error (CILG0025): The conversion of '...' BCD values to data type '...' is not supported.
The CIL Generator has detected a data type conversion which is not supported.
The error message is generated because you have connected a binary coded decimal value (BCD value) to an overloaded type converter function which is not supported by that function.
The help chapter "Data Type Conversion" (IEC 61131-3 Functions and Function Blocks help) specifies the allowed data types at the input of each overloaded converter function.
Remedy
Double-click the error message to jump to the affected code position.
Adapt the data type of the variable connected to the converter input. You can use a suitable BCD_TO_* converter function that is upstream of the converter mentioned in this error.