Hitachi L700 Series - Page 182

Chapter 4 Explanation of Functions
4 - 120
(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.
Coil status
OFF→ON ON→OFF
Updating data (upper digit) FFh 00h
Updating data (lower digit) 00h 00h
(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.
If the function to write data to a coil cannot be executed normally, the inverter will return an exception
response. For details, see Item (viii), "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".
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 (viii), "Exception response."
Query
Field name Sample setting
(hexadecimal)
1 Slave address (*1) 0A
2 Function code 05
3 Starting coil numbe
r
(upper digit) (*2)
00
4 Starting coil numbe
r
(lower digit) (*2)
00
5 Updating data (upper digit) FF
6 Updating data (lo
w
er digit) 00
7 CRC-16 code (upper digit) 8D
8 CRC-16 code (lower digit) 41
*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.
Response
Field name Sample setting
(hexadecimal)
1 Slave address 0A
2 Function code 05
3 Starting coil numbe
r
(upper
digit)
00
4 Starting coil numbe
r
(lower
digit)
00
5 Updating data (upper digit) FF
6 Updating data (lo
w
er digit) 00
7 CRC-16 code (upper digit) 8D
8 CRC-16 code (lower digit) 41
Query
Field name Sample setting
(hexadecimal)
1 Slave address (*1) 05
2 Function code 06
3 Starting registe
r
numbe
r
(upper digit) (*2)
12
4 Starting registe
r
numbe
r
(lower digit) (*2)
02
5 Updating data (upper digit) 00
6 Updating data (lo
w
er digit) 32
7 CRC-16 code (upper digit) AD
8 CRC-16 code (lower digit) 23
*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.
Response
Field name Sample setting
(hexadecimal)
1 Slave address 05
2 Function code 06
3 Starting registe
r
numbe
r
(upper digit)
12
4 Starting registe
r
numbe
r
(lower digit)
02
5 Updating data (upper digit) 00
6 Updating data (lo
w
er digit) 32
7 CRC-16 code (upper digit) AD
8 CRC-16 code (lower digit) 23