Hitachi CONVENTION 14 - Page 256

Write in Holding Register [06h]:
This function writes data in a specified holding register. An example follows:
x Write “50Hz” as the first Multi-speed 0 (A020) in an inverter having slave address
“5.”
x This example uses change data “500(1F4h)” to set “50Hz” as the data resolution of
the register “1029h” holding the first Multi-speed 0 (A020) is 0.1Hz
Query: Response:
No. Field Name
Example
(Hex)
No. Field Name
Example
(Hex)
1 Slave address *1 08 1 Slave address 08
2 Function code 06 2 Function code 06
3 Register start address
*2
(high order)
10 3 Register start address
*2
(high order)
10
4 Register start address
*2
(low order)
28 4 Register start address
*2
(low order)
28
5 Change data
(high order)
01 5 Change data
(high order)
01
6 Change data
(low order)
F4 6 Change data
(low order)
F4
7 CRC-16 (high order) 0D 7 CRC-16 (high order) 0D
8 CRC-16 (low order) 8C 8 CRC-16 (low order) 8C
Note 1: No response is made for a broadcasting query.
N
ote 2: The PDU Register Number are addressed starting at zero. Therefore register
numbered “1029h” are addressed as “1028h”. Register address value
(transmitted on Modbus line) is 1 less than the Register Number.
When writing in a selected holding register fails, see the exception response.
B13
Appendix B
B
−
13
Appendix B