Modbus Gateway(Mini)
3
Notice
！
（
1
）
Be sure the specified adaptor is used; otherwise this device would work
improperly or even be damaged.
（
2
）
Be sure this device is setup in place; otherwise it would result in
communication fault.
（
3
）
Be sure the communication line is connected to the correct interface; otherwise it
would result in communication fault.
（
4
）
After connection, lines should be protected with insulating tape to avoid
oxidation and short circuits.
（
5
）
Normal working conditions for Modbus Gateway(Mini)
：
a) Temperature : -20
～
+60
℃
;
b) Humidity: less than 85%, except for the condensation of dew;
c) Location: indoor (it is highly recommended to install this product in the
electric control cabinet), not subject to direct sunlight, rain and snow
etc.
（
6
）
Graphics in the instruction manual are for reference only.
3 General Functions
C
&H
unitary unit series Modbus Gateway(Mini) provides standard Modbus RTU
protocol to realize data exchange between unitary unit and BMS.
The gateway is suitable for C
&H
Big Duct Type Unit and Air-Cooled Packaged
AHU . C
&H
unitary unit series Modbus Gateway(Mini) is called Modbus
Gateway(Mini) for short.
