Hitachi WJ200-001S Instruction Manual page 559

Ver.3− − − − 50
（ １ ） Reading out Holding register[03h] 、 T arget register: Internal register (second pair)
Query:
No
1 Slave address
2 Function code
3 Register start address (high order)
4 Register start address (low order)
5 Number of holding registers (high order)
6 Number of holding registers (low order)
7 CRC-16 (high order)
8 CRC-16 (low order)
Response:
Ｎ ｏ
1 Slave address
2 Function code
3 Data size (in bytes)
4 Register data 1 (high order)
5 Register data 1 (low order)
6 CRC-16 (high order)
7 CRC-16 (low order)
Field Name
Field Name
Example
(Hex)
01
03
12
0F
00
One register
01
B1
71
Example
(Hex)
01
03
02
00
The value of internal register is exactly
64
read out.
B9
AF