ISPSoft User Manual 3.4.3 Data Exchange - COM2 &Ethernet After users click the tab Data Exchange - COM and Data Exchange – Ethernet, the parameters for making the data exchange table of the communication port built in AHxxEMC series can be set. AHxxEMC series as a master exchanges data with remote devices working as slaves via COM2 based on MODBUS protocol or via Ethernet port based on MODBUS TCP protocol. As one start mode, Program Control decides whether the set data exchange is performed. PLC Run means that the set data exchange will be performed automatically when PLC is in RUN state. Always Enable means that the data exchange will be performed constantly when PLC is powered on.
A new data exchange table will be added in area by clicking Add . The present data exchange table selected will be moved up or down by clicking Move Up and Move Down . The present data exchange table selected will be deleted by clicking Delete . The present data exchange table selected will be copied by clicking Copy and then can be pasted to the last row. The data exchange table is explained as below. 3-206 Name Description Item The number of the block for data exchange Enable To select whether to enable the data exchange table when the data exchange is performed.