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Figure 3.15 Download gateway configurations
8
.
After completing the above settings, the Modbus TCP client can use the Modbus
TCP protocol to access the slave device 16DI which the station number is X(0<X<248
and X cannot be the device station number for the gateway) though the gateway IP
address 192.168.1.254, the Modbus data communication port 502 and the slave station
number 1.
3.4.2 Realize Modbus TCP Client and Modbus RTU/ASCII
Master Station Communication
3.4.2.1 Application topology diagram