Communication Profile Family 15 (commonly known as Modbus) defines communication profiles based on IEC 61158-5-15 and IEC 61158-6-15. The basic profile CP 15/1 (Modbus TCP) is defined in IEC 61784-1. This part of the IEC 62453 provides information for integrating Modbus TCP® and Modbus Serial Line® protocol support into FDT based systems. This part of IEC 62453 only specifies the mapping of Modbus parameters to FDT data types.