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Write in Holding Registers [10h]:
This function writes data in consecutive holding registers. An example follows:
x Write “3000 seconds” as the first acceleration time 1 (F002) in an inverter having a
slave address “8.”
x This example uses change data “300000(493E0h)” to set “3000 seconds” as the data
resolution of the registers “1014h” and “1015h” holding the first acceleration time 1
(F002) is 0.01 second.
Query: Response:
No. Field Name
Example
(Hex)
No. Field Name
Example
(Hex)
1 Slave address *1 08 1 Slave address 08
2 Function code 10 2 Function code 10
3 Start address *3
(high order)
10 3 Start address *3
(high order)
10
4 Start address *3
(low order)
13 4 Start address *3
(low order)
13
5 Number of holding
registers (high order)
00 5 Number of holding
registers (high order)
00
6 Number of holding
registers (low order)
02 6 Number of holding
registers (low order)
02
7 Byte number *2 04 7 CRC-16 (high order) B4
8 Change data 1
(high order)
00 8 CRC-16 (low order) 54
9 Change data 1
(low order)
04
10 Change data 2
(high order)
93
11 Change data 2
(low order)
E0
12 CRC-16 (high order) 7D
13 CRC-16 (low order) 53
Note 1: Broadcasting is disabled.
N
ote 2: This is not the number of holding registers. Specify the number of bytes of
data to be changed.
N
ote 3: The PDU Register Number are addressed starting at zero. Therefore register
numbered “1014h” are addressed as “1013h”. Register address value
(transmitted on Modbus line) is 1 less than the Register Number.
When writing in selected holding registers fails, see the exception response.
B16
Appendix B
B 16
Appendix B