User's Manual

USR-G786-G User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited www.usriot.com
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2 Enable Socket A
AT+SOCKAEN=ON
3 Set socket A to TCP Client
AT+SOCKA=TCP,test.usr.cn,2317
4 Enable Modbus protocol conversion
AT+MODBUSEN=ON
5 Restart the module
AT+Z
3 Test
Connect the serial port of USR-G786-G to the computer via a serial to USB cable, Modbus RTU data sent by
the serial port is converted into MODBUS TCP data by G786-G and then sent to the network side. Similarly,
G786-G converts the MODBUS TCP data on the network side into MODBUS RTU data and transmits it to the
serial port.
6.5. FTP Upgrade