MODBUS Protocol 90
1.2 Example
(1). Start 1＃ inverter in FWD running condition
Main machine request:
Slave
Register initial address
Function
machine
code High
Low
address
01
06
10
01
Register data
High
Low
00
01
CRC CHECK
Low
High
1D
0A
Slave machine response: inverter in FWD running condition responds the same
data with main machine request.
(2). Set inverter running frequency as 50.0Hz
Main machine request:
Slave
Register initial address
Function
machine
code High
Low
address
01
06
10
02
Register data
High
Low
01
F4
CRC CHECK
Low
High
2C
DD
Slave machine response:inverter in 50.0Hz running condition responds the same
data with main machine request.
(3). Read current running frequency, output current, inverter response frequency
50.0Hz and output current 1.1A of inverter.
Main machine request:
Slave
Register initial address
Function
machine
code
High
Low
address
01
03
D0
00
Number of registers
High
Low
00
02
CRC CHECK
Low
High
FC
CB
Slave machine response:
Slave
Function Number of
machine
code reading bytes
address
01
03
04
1st register data
High
Low
01
F4
2nd register data CRC CHECK
High
Low Low High
00
0B
FB FA
E550 Series Universal Low-Power Inverter
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