Cubic AM6108B Especificación - Página 11
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Imprimir páginaCommunication Protocol
1. General Statement
1） The AM6108 controller is connected to the HVAC controller through 485, it sends a command to the HVAC
controller to achieve the AM6108 control the HVAC system by communication protocol.
Baud rate：9600, Data Bits: 8, Stop Bits: 1, Parity: No；
2）
3） Communication distance ≤ 2km; and we suggest the terminal impedance be 120Ω, 1 / 2W.
2. Format of Serial Communication Protocol
Sending format of test software:
Start Symbol
Length
HEAD
11H
Detail description on protocol format:
Protocol Format
Start Symbol
Length
Command
Address
Data
Check Sum
3. Controller Command
The system's default slave device address is 01H, the controller command is 55H, and the command format is as
below:
11 10 55 01 DF1 DF2 DF3 DF4 DF5 DF6 DF7 DF8 DF9 DF10 DF11 DF12 DF13 DF14 CS
Slave response
16 02 55 01 CS
4. Command Table of Serial Protocol
Name
Mode
www.gassensor.com.cn
Command
LEN
CMD
XXH
XXH
Description
Sending by controller is fixed as [11H]
Length of frame bytes= data length +2 (including CMD+IP+DATA)
Command is fixed as [55H]
Controller address is （1～254，default is [01H]）
Data of writing or reading, length is not fixed
Cumulative sum of data = 256-(HEAD+LEN+CMD+IP+DATA)
Data
Description
0x00 Periods Mode
DF1
0x01 Intelligent Mode
0x02 Manual Mode
0x03 Mute Mode
IP Address
Data1
ADD
DATA1
XXH
XXH
......
Data n
Check Sum
......
DATAn
......
XXH
Note
CS
XXH
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