Mitsubishi Electric FR-A820-00046 Instruction Manual page 865

Parameters
Preset multiple registers (writing of data to multiple holding registers) (H10 or 16)
● Data can be written to multiple holding registers.
● Query message
³
Slave
address
(8 bits)
● Normal response (Response message)
Slave address
(8 bits)
● Query message setting
Message
³ Slave address
· Function
» Starting address
¿ No. of points
´ Byte count
² Data
Tab. 5-294: Description of the query message
● Content of normal response
With a normal response, the content is the same as ³ to ¿ (including the CRC check) query
messages.
Example Write 0.5 s (H05) to 41007 (Pr. 7) and 1 s (H0A) to 41008 (Pr. 8) of slave address 25 (H19).
Query message
Slave
address
H19
(8 bits)
Normal response (Response message)
Slave
address
H19
(8 bits)
FR-A800
»
·
Starting
Function
address
H10 H L
(8 bits) (8 bits) (8 bits)
³
· Function
H10
(8 bits)
Description
Set the address to send messages to. Setting "0" enables broadcast communication.
Set H10.
Set the address from which to start writing of data to the holding register.
Start address = start register address (decimal) - 40001
For example, when start register address 0001 is set, the data of holding register address
40002 is read.
Set the number of holding registers to write to. Data can be written to up to 125
registers.
The setting range is H02 to HFA (2 to 250).
Set twice the value specified by d.
Set the amount of data specified by d. Set write data Hi bytes first followed by Lo bytes,
and arrange it as follows: data of start address, data of start address+1, data of start
address+2, and so forth.
Func-
Starting address
tion
H10 H03 HEE
(8 bits) (8 bits) (8 bits)
Function Starting address
H10 H03
(8 bits) (8 bits)
(N) Operation via communication and its settings
¿ ´
No. of registers Byte count
H L
(8 bits)
(8 bits) (8 bits)
» Starting address ¿ No. of registers
H L
(8 bits) (8 bits) (8 bits)
Byte
No. of points
count
H00 H02 H04
(8 bits) (8 bits) (8 bits) (8 bits)
No. of points
HEE H00
(8 bits) (8 bits)
² Data
...
H L
(n × 2 × 8
(8 bits) (8 bits)
bits)
CRC check
H L L
(8 bits) (8 bits)
Data
H00 H05 H00 H0A
(8 bits) (8 bits) (8 bits)
CRC check
H02 H22
(8 bits) (8 bits)
CRC check
L H
(8 bits) (8 bits)
H
(8 bits)
CRC
check
H86
(8 bits)
H61
(8 bits)
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