SVF-G7Series Frequency Inverter Operation Manual
Chapter7 Communication Protocol
174
☞
Note: The function parameter of frequency inverter divides into two
part, one is high byte and low byte; the high byte presents the group serial
number of function parameter; the low byte presents function parameter
within the group number and need witch to 16 system.
(2)Frame in communication
The frame that slave machine send to frequency inverter:
Slave
addre
ss
Functio
n code
Paramet
er
address
high
byte
Paramet
er
address
low byte
Read
numbe
r high
byte
Read
numbe
r
low
byte
Parit
y bit
high
byte
Parit
y bit
low
byte
The frame that frequency inverter corresponding the upper machine:
Slave
addre
ss
Functio
n code
Read
byte
quant
ity
The
first
data
high
byte
The
first
data
low
byte
;
;
;
The n
data
high
byte
The
n
data
low
byte
Parit
y bit
high
byte
Parit
y bit
low
byte
(3)For example
The upper machine read two data from the frequency inverter, and the two
data is setting frequency and DC bus voltage,the address is 3001H, 3002H,
and
the upper machine should send the data to frequency inverter as
follows;
Slave
addre
ss
Functio
n code
Paramet
er
address
high
byte
Paramet
er
address
low byte
Read
numbe
r high
byte
Read
numbe
r low
byte
CRC
Parit
y bit
high
byte
CRC
Parit
y bit
high
byte
01
03
30
01
00
02
9A
CB
Содержание SVF-G7 Series
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