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• Data List Build Error (DL0001): Invalid connection due to incompatible data types.

Data List Build Error (DL0001): Invalid connection due to incompatible data types.

The data types of an IN port and OUT port connected in the GDS port list are not compatible. PLCnext Engineer supports only a combination (assignment) of specific data types. For example, if both data types (IN and OUT port) are elementary data types, the combination between a C++ port of data type int16 with a boolean data type is not allowed.

For details on assignment of PLCnext ports and the valid combinations, see the topic "Role Mapping in the GDS Port List: Assigning PLCnext Ports" or refer to the documentation in the PLCnext Info Center.

To resolve the error, check the data types of the IN and OUT port connection reported in the build error.