LS iP5A - Standard Specifications - Part 1; 200~230 V Class Specifications; 380~480 V Class Specifications (1-125 HP)

iP5A Modbus/TCP Manual
9
(2) Function Code Description
Modbus TCP can be divided into Client and Server. Client gives the command
and Server responds to the command. Generally, as Client, there are PLC, HMI,
PC so on, and Server means inverter.
① Read Multiple Registers
It is a function for reading Data from Inverter (Server).
Frame Constitution that Client requires Server
Frame Constitution that Server responds to Master
② Write Single Register
The function is used when modifying 1 Data of Inverter (Server).
Frame Constitution that Client requires Server
Required Frame
Length
Value
Function Code
1 Bytes
0x03
Comm. Address
2 Bytes
0x0000 ~ 0xFFFF
Required Data number
2 Bytes
1~16
(by LSIS Inverter standard)
Responded Frame
Length
Value
Function Code
1 Bytes
0x03
Comm. Address
1 Bytes
2 x Data required number
Required Data number
Data required
number x 2 Bytes
Required number of Data
from comm. address
Required Frame
Length
Value
Function Code
1 Bytes
0x06
Comm. Address
2 Bytes
0x0000 ~ 0xFFFF
Data Value
2 Bytes
0x0000 ~ 0xFFFF