Page 14 of 15 Ver 1.0 File No.:S27x10
GSM 3G M2M RTU
Automation solution
RTU
Definition
Server
Modbus
RTU Server
Modbus
RTU meters
or PLC or
DAM
Definition Protocol
6.3 Transparent Data Transmission
The GSM 3G M2M RTU supports transparent data transmission via GPRS or 3G or RJ45 or RS232 or
RS485 for non-standard meters or devices, e.g.: ATM device, air conditioner, generator, meters,
instruments, transducers, sensors, PLC and so on. The user no need to create or change its present server
protocol, and can use it directly. At this condition, the GSM 3G M2M RTU performs a SMS Alarm and SMS
Controller and DTU and Modbus RTU Slave. The topological graphs please see below:
RTU
Existing
Server
Modbus
RTU Server
Non-
Modbus
RTU Meters
or Devices
Transparent Data
Transmission
7. Registers Assignment Table
The registers assignment of the RTU and its IO will definite in the <GSM 3G M2M RTU Register Assignment
Table>, please refer to it.
