TOSOT DC INVERTER U-MATCH AIR
43
Figure 2-7-11
4.
NOTE:
(1) In order to realize the MODBUS interface function, the address mode of the unit must be set into
long-distance control address mode; you can not set it into centralized control address mode,
otherwise, this function can not be realized.
(2) The unit can not be connected to MODBUS and centralized controller at the same time; only one of
them can be selected.
(3) 255 sets of unit in maximum can be connected in the same network; the unit addresses in the same
network must be different, otherwise, the unit control will be affected.
(4) Perform wiring when the unit power is cut off.
7.2.4 Connect to Interface of Centralized Controller
The indoor unit is with the interface of centralized controller. When centralized controller is
connected, centralized control of unit can be realized when the wired controller is not connected;
1. Interface instruction:
(1) The printing is COM-BMS2, COM-BMS3 and the interface type is B2B-XH-K3.
(2) Electrical characteristic: none.
(3) Working principle: centralized control the communication of indoor mainboard and realize the unit
control.
2. Function instructions:
In order to achieve this function, set the address mode and address through wired controller. Please
refer to Point 3 for the setting method. The address mode is defaulted to be connecting to centralized
controller mode and the defaulted address is 1.
When the centralized controller is connected, centralized control of the unit can be realized to
control unit ON/OFF, operation mode, set fan speed/temperature and weekly timer.