Mitsubishi Electric FR-E700EX Instruction Manual page 229

 Write holding register data (H06 or 06)
Can write the description of 1) system environment variables and 4) drive unit parameters assigned to the holding
register area (refer to the register list (page 231)).
Query message
1) Slave Address 2) Function
(8 bits)
(8 bits)
Normal response (Response message)
1) Slave Address 2) Function
(8 bits)
(8 bits)
 Query message setting
Message
1) Slave Address
2) Function
3) RegisterAddress
4) Preset Data
 Description of normal response
1) to 4) (including CRC check) of the normal response are the same as those of the query message.
No response is made for broadcast communication.
Example: To write 60Hz (H1770) to 40014 (running speed RAM) at slave address 5 (H05). (for frequency setting)
Query message
Slave Address Function
H05 H06
(8 bits) (8 bits)
Normal response (Response message)
Same data as the query message
NOTE
For broadcast communication, no response is returned in reply to a query. Therefore, the next query must be
made when the drive unit processing time has elapsed after the previous query.
3) Register Address
H06 H L
(8 bits) (8 bits)
3) Register Address
H06 H L
(8 bits) (8 bits)
Address to which the message will be sent
Setting of address 0 enables broadcast communication
Set H06
Address of the holding register to which data will be written
Register address = Holding register address (decimal)-40001
For example, setting of register address 0001 writes data to the holding register
address 40002.
Data that will be written to the holding register
The written data is always 2 bytes.
Register Address
H00
(8 bits)
Communication operation and setting
4) Preset Data CRC Check
H L L
(8 bits) (8 bits) (8 bits)
4) Preset Data CRC Check
H L L
(8 bits) (8 bits) (8 bits)
Setting Description
Preset Data
H0D H17
(8 bits) (8 bits)
H
(8 bits)
H
(8 bits)
CRC Check
H70 H17 H99
(8 bits) (8 bits) (8 bits)
227
4