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Chapter 4
(iii) Writing data to a specified coil [05h]
This function writes data to a specified coil
The following table shows the updating of the coil status.
(Example)
When sending an operation command to the inverter at slave address "10":
To start the inverter operation, "03" must be set in parameter "A002". Coil 1 is used to turn on an operation command.
Query
Field name
1
Slave address (*1)
2
Function code
3
Starting coil number
(upper digit) (*2)
4
Starting coil number
(lower digit) (*2)
5
Updating data (upper digit)
6
Updating data (lower digit)
7
CRC-16 code (upper digit)
8
CRC-16 code (lower digit)
*1 If this query is broadcasted, no inverter will return any
response.
*2 Note that the starting coil number is 1 less than the actual
coil number of the coil to be read first.
If the function to write data to a coil cannot be executed normally, the inverter will return an exception response. For
details, see Item (ix), "Exception response."
(iv) Writing data to a specified register [06h]
This function writes data to a specified register.
(Example)
When setting "50 Hz" as the base frequency setting (A003) in the inverter at slave address "5":
Since register "1203h" to store the base frequency setting (A003) has a data resolution of 1 Hz, specify "50" (0032h) as
the updating data to set "50 Hz".
Query
Field name
1
Slave address (*1)
2
Function code
3
Starting register number
(upper digit) (*2)
4
Starting register number
(lower digit) (*2)
5
Updating data (upper digit)
6
Updating data (lower digit)
7
CRC-16 code (upper digit)
8
CRC-16 code (lower digit)
*1 If this query is broadcasted, no inverter will return any
response.
*2 Note that the starting coil number is 1 less than the actual
coil number of the coil to be read first.
If the function to write data to a specified register cannot be executed normally, the inverter will return an exception
response. For details, see Item (ix), "Exception response."
Updating data (upper digit)
Updating data (lower digit)
Sample setting
(hexadecimal)
0A
05
00
00
FF
00
8D
41
Sample setting
(hexadecimal)
05
06
12
02
00
32
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4-135
Explanation of Functions
Coil status
OFF→ON
ON→OFF
FFh
00h
00h
00h
Response
Field name
1
Slave address
2
Function code
3
Starting coil number (upper
digit)
4
Starting coil number (lower
digit)
5
Updating data (upper digit)
6
Updating data (lower digit)
7
CRC-16 code (upper digit)
8
CRC-16 code (lower digit)
Response
Field name
1
Slave address
2
Function code
3
Starting register number
(upper digit)
4
Starting register number
(lower digit)
5
Updating data (upper digit)
6
Updating data (lower digit)
7
CRC-16 code (upper digit)
8
CRC-16 code (lower digit)
Sample setting
(hexadecimal)
0A
05
00
00
FF
00
8D
41
Sample setting
(hexadecimal)
05
06
12
02
00
32
AD
23
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