Modbus commands
AIRZONE MODBUS RTU AND AIRZONE MODBUS TCP/IP
Write commands
•
Write to single register
EN
Provided no error occurs, the response must be in exactly the same format as the write
command.
•
Write to multiple registers
16
Byte
0
1
2
3
4
5
6
7
Byte
0
Secondary address (1-247) (0: Broadcast)
1
2
3
4
5
6
7
8
5 + 2·N
6 + 2·N
7 + 2·N
8 + 2·N
Field
System address (1-247) (0: Broadcast)
Write to single register (6)
Zone address
Register address
Data to write
CRC
Field
Write to multiple registers (16)
Zone address
Start register address
Number of registers to write (N)
Number of total write bytes (2·N)
Data to write to register 1
...
Data to write to register N
CRC