Rtelligent EP Series - 5.1.2. Function 10: Write Multiple Registers

EP Series User Manual
64
Example
Length
Description
Remark
Map
message
header
0x97
1
Transaction Identifier, H
Client initiated, server replicated, for
transaction pairing
0x96
1
Transaction Identifier, L
0x0000
2
Protocol Identifier
Client initiates, server replicates
Modbus protocol = 0.
0x00FD
2
Length
From the next to the last of this byte
0x04
1
Unit Identifier
Initiated by the client, the server
replicates the ID of the remote
terminal on the serial link or other bus
Function
code
0x03
1
Function Code, read
register
Data
0xFA
1
Number of bytes
0x
1
Data
5.1.2. Function 10: Write Multiple Registers
Query message:
97 79 00 00 00 09 04 10 00 00 00 01 02 00 01
Example
Length
Description
Remark
Map
message
header
0x97
1
Transaction Identifier, H
Client initiated, server replicated, for
transaction pairing
0x79
1
Transaction Identifier, L
0x0000
2
Protocol Identifier
Client initiates, server replicates
Modbus protocol = 0.
0x0009
2
Length
From the next to the last of this byte
0x04
1
Unit Identifier
Initiated by the client, the server
replicates the ID of the remote
terminal on the serial link or other bus
Function
code
0x10
1
Function Code, read
register
Data
0x0000
2
Start address
0x0001
2
Number of registers
0x02
1
Number of bytes written
0x0001
2
Target value