Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET AH10SCM-5A intelligent module configuration interface shows basic information of AH10SCM-5A, communication mode of COM port, mapping range of registers and the mapping relation of the internal register I and Q in AH10SCM-5A. Right click “COM Port” on the left side and then select Modbus mode or UD Link mode as the communication mode of COM port. Modbus mode 11-85