- 40 -
4.7 Do Not Install Wire Controller Setting
The indoor unit which is not installed with wire controller has no information of remote control group, default situation is
switch off, air supply, high fan, first segment of swing louver, 28
℃
.
4.8 Three Important Function Setting in Mapping Table
When sending control command, and indoor unit
·
outdoor unit wire controller connection state changes, use the following
table to operate if EEPROM needs to be cleared.
Communication
protocol
address
State information
Message
4997
Check the indoor unit quantity connected to
Modbus (read-only)
Modbus RTU
：
32 03 13 85 00 02 D4 A5
Modbus TCP: 00 01 00 00 00 06 FF 03 13 85 00 02
4998
Check whether Modbus adapter is
controllable (read-only), when it’s 1 it shows
that the product can send control message.
4999
Clear EEPROM handshaking information
(read and write), write 1, clear EEPROM
Modbus RTU
：
32 10 13 87 00 01 02 00 01 1B D7
Modbus TCP
：
00 01 00 00 00 09 FF 10 13 87 00 01 02 00 01
4.9 Outdoor Unit · Indoor Unit Connection Confirmation
①
Outdoor unit connection confirmation
Taking Mapping Table communication address as example, operate 1000 address, refer to Mapping Table for others, as
follows:
Modbus RTU:
Read the connection state of 64 outdoor units in the refrigerant system: 32 03 03 E8 00 40 C1 89
Modbus TCP:
Read the connection state of 64 outdoor units in the refrigerant system: 00 01 00 00 00 06 FF 03 03 E8 00 40
Note
●
After sent one control command, need to wait for the correct response code returned by Modbus before sending
next control command. If do not take this as your control method, please set the internal between two control
command to be more than 500ms.
●
In code sending run/stop, operation mode setting, fan speed setting, swing louver position setting, temperature
setting, it is recommended to use continuation write command 0x10 to complete all the setting, do not recommend
to send one single setting mode as a command.
For example: recommend “run/stop”, “operation mode setting”, “fan speed setting”, “swing louver position
setting”, “set temperature” as one control command to be sent out.
Do not recommend: “run stop”, “mode setting”, “fan speed setting”, “swing louver position setting”, “setting
temperature” as five control command to be sent out separately.
4 Air Conditioner Monitoring