5.2 Composition of the IPE

As shown in Figure 5.2-1, the Modbus IPE consists of AE and Modbus Master [i.2]. To provide the interworking functions to other oneM2M entities, the IPE shall register to a CSE and communicate with Modbus devices using Modbus protocol. The IPE registration is mandatory in oneM2M systems. Modbus discovery and session establishment are needed for the IPE to communicate with other Modbus applications. A single Modbus IPE may expose Modbus functions provided by one or more Modbus devices to the oneM2M System.

Figure 5.2-1: Composition of Modbus-IPE