The data set in the response is as follows:
Response Buffer
4-5
6-7
8-9
Register Number
12+0 (high
order)
12+0
(low
order)
12+1
(high
order)
12+1 (low
order)
12+2
(high
order)
12+2 (low
order)
Register Data
0003h
00h
00h
0063h
Trip data
Trip factor (E03)
Not used
Frequency (9.9Hz)
Response Buffer
10-11
12-13
14-15
Register Number
12+3 (high
order)
12+3
(low
order)
12+4
(high
order)
12+4 (low
order)
12+5
(high
order)
12+5 (low
order)
Register Data
00h
00h
001Eh
011Ch
Trip data
Not used
Output current (3.0A)
DC-bus voltage (284V)
When the Read Holding Register command cannot be executed normally, refer to the
exception response.
Write in Coil [05h]:
This function writes data in a single coil. Coil status changes are as follows:
Coil Status
Data
OFF to ON
ON to OFF
Change data (high order)
FFh
00h
Change data (low order)
00h
00h
An example follows (note that to command the inverter, set A002=03):
x
Sending a RUN command to an inverter having slave address “8”
x
This example writes in coil number “1.”
Query:
Response:
No.
Field Name
Example
(Hex)
No.
Field Name
Example
(Hex)
1
Slave address *1
08
1
Slave address
08
2
Function code
05
2
Function code
05
3
Coil start address *2
(high order)
00
3
Coil start address *2
(high order)
00
4
Coil start address *2
(low order)
00
4
Coil start address *2
(low order)
00
5
Change data
(high order)
FF
5
Change data
(high order)
FF
6
Change data
(low order)
00
6
Change data
(low order)
00
7
CRC-16 (high order)
8C
7
CRC-16 (high order)
8C
8
CRC-16 (low order)
A3
8
CRC-16 (low order)
A3
Note 1:
No response is made for a broadcasting query.
Note 2:
The PDU Coils are addressed starting at zero. Therefore coils numbered 1-31
are addressed as 0-30. Coil address value (transmitted on Modbus line) is 1
less than the Coil Number.
When writing in a selected coil fails, see the exception response.
B
12
Appe
ndix B
B
−
12
Appendix B
