ShenZhen Comark Technology Co.,Ltd.
Serial Server and Gateway User Manual
Page 19
In the Send area, select the packets you want to send, as shown in the following illustration.
Notice:
RS-485 as half-duplex mode only one serial port to send another serial port can only receive data;
RS-232/422 can send both bidirectional for full duplex mode.
2.3.4 ModbusTCP(RTU_MASTER) Mode
PC port of the host computer connected to the Ethernet port of this series of devices, This series of equipment
serial port and the lower computer PLC serial port connected(RS-232/485/422), Implement the transmission of
Modbus RTU on the Modbus TCP to serial link on the Ethernet link.
