Hitachi WJ200-001S Instruction Manual page 548

(2) Writing Holing Register[06h] 、 t arget register: External register
Query:
No Field Name
1 Slave address
2 Function code
3 Register start address
(high order)
4 Register start address
(low order)
5 Change data (high order)
6 Change data (low order)
7 CRC-16 (high order)
8 CRC-16 (low order)
Response:
No Field Name
1 Slave address
2 Function code
3 Register start address
(high order)
4 Register start address
(low order)
5 Change data (high order)
6 Change data (low order)
7 CRC-16 (high order)
8 CRC-16 (low order)
After Modbus communication above, 80% is written as
Example
(Hex)
01
06
12
Register address value = Register
Number - 1
00
00
0050h→80d→80%
50
8C
8E
Example
(Hex)
01
06
12
Register address value = Register
Number - 1
00
00
0050h→80d→80%
50
8C
8E
[O] input active range end voltage (A014)
Ver.3− − − − 39