Ethernet Communication Module IFD9506 Note: When the cache mode is enabled, all the read data will be read from IFD9506. In this way, the read speed can be enhanced. 10.6 Application of Modbus Slave 1. The wiring: DVP-PLC Application Manual 44 Application Giving Modbus command from HMI to remote device. Steps (1) HMI sends out the instruction. (2) Set the IP of slave IFD9506 to “192.168.1.6”, station address to “7” and communication format to “38400, 8, E, 1, RTU”. (3) In the IFD9506 serial slave mode table, set the device address to “1” and “3”, the two relay IPs to “192.168.1.5”.
(4) Set the IP of master of IFD9506 to “192.168.1.5", station address to “8” and communication format to “38400, 8, E, 1, RTU”. (5) HMI master and IFD9506 slave transmit data through RS-485. (6) IFD9506 slave and IFD9506 master transmit data through Ethernet. (7) The RS-485 terminal on IFD9506 master is connected to two devices, which are PLC at station address 0x0001 and PLC at station address 0x0003. Assume the communication format is “38400, 8, E, 1, RTU”.