Mitsubishi Electric 800 Series Instruction Manual page 577

(N) Operation via communication and its settings
Preset Multiple Registers (writing of data to multiple holding registers)
(H10 or 16)
• Data can be written to multiple holding registers.
• Query message
a. Slave
b. Function
Address
H10
(8 bits)
(8 bits)
• Normal response (Response message)
a. Slave
b. Function c. Starting Address
Address
H10
(8 bits)
(8 bits)
• Query message setting
Message
a Slave Address
b Function
c Starting Address
d No. of Registers
e Byte Count
f Data
• Content of normal response
With a normal response, the content is the same as a to d (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
Function
Address
H19 H10
(8 bits) (8 bits)
Normal response (Response message)
Slave Address
H19
(8 bits)
576
PARAMETERS
c. Starting d. No. of
Address Registers
H L H
(8 bits) (8 bits) (8 bits)
d. No. of Registers
H L H
(8 bits) (8 bits) (8 bits)
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.
Starting No. of
Address Registers
H03 HEE H00
(8 bits) (8 bits) (8 bits)
Function Starting Address
H10 H03 HEE
(8 bits) (8 bits) (8 bits)
e. Byte
Count
L H
(8 bits)
(8 bits) (8 bits)
CRC Check
L L
(8 bits) (8 bits)
Description
Byte
Count
H02 H04 H00 H05
(8 bits) (8 bits) (8 bits) (8 bits)
No. of Registers
H00 H02
(8 bits) (8 bits)
f. Data CRC Check
L ... L
(n  2  8 bits)
(8 bits) (8 bits)
H
(8 bits)
Data CRC Check
H00 H0A H86
(8 bits) (8 bits) (8 bits)
CRC Check
H22 H61
(8 bits) (8 bits)
H
(8 bits)
H3D
(8 bits)