Coolmay CM-4TM, Руководство пользователя

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Chapter 6 Modbus RTU protocol
59
Answer(slave side)
Slave
address
Functio
n
Initial address Preset data
Error check
(CRC16)
High Low High Low Low High
11 H 06 H 00 H 00 H 00 H 0A H ** H ** H
6.6 Preset multiple memories
（
Func 16-10H
）
The binary data of the holding memory (refer to the 4X state) is continuously written in the
slave device.
1. Inquire (master side)
Slav
e
addr
ess
Func
tion
Initial
address
Memory
quantity
Num
ber
of
byte
Data Data
Error check
(CRC16)
High Low High Low High Low High Low Low High
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
1Byt
e
CRC16
2. Answer(slave side)
Slave
address
Functio
n
Initial address Memory quantity
Error check
(CRC16)
High Low High Low Low High
1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte
CRC16
For example
：
The master side writes "10 (A H)" to the holding memory 400001 (0000H) ~ 400002
(0001H) of the slave side (address 17).