SUNFAR Self-Defined Communication Protocol 84
1.4.4 Modify function code parameters in inverter RAM area (Command
classification 3)
Data setting: modify digital set frequency [F0.01] = 50.0Hz, stop without storage.
Sent by
Frame
main
header
machine
Number of
bits
1
Slave Command Operating Data
address type command classification
2
1
2
1
Data
subitem
2
setting
Data
4
Frame
Checksum
end
4
1
30 31
30 32
2A 30 30
33
30 30
30
30 31
0D
46 34
35 46
Example
00 00
00 00
5A 00 00
03
00 00
00
00 01
0D
01 F4
00 F9
Invalid
F0
set
Description Frame Address No.3 control parameter
F0.01
Hexadecimal Frame
Frequency
header 00 command
Parameter
accumulation end
command group
50.0Hz
Data feedback: correct data setting.
Slave
machine
response
Frame
header
Number of
bits
1
Slave
address
2
Slave
response
1
2A 30 30
30
Exp.
5A 00 00
00
Description
Frame
header
No.0 slave
machine
response
Slave
machine
receives
data
Status
Data
Data
feedback classification address
Setting
data
Checksum
2
30 33
00 03
Slave
machine
in stop
condition
1
30
00
F0
parameter
group
2
4
4
30 31
00 01
30 31
46 34
00 00
01 F4
30 32
35 46
00 00
00 F9
F0.01
Setting
data50.0
Hz
Hexadecimal
accumulation
Frame
end
1
0D
0D
Frame
end
1.4.5 Send control command (Command classification 4)
Data setting: Set FWD running frequency of No. 0 inverter of slave machine as
10.0Hz.
Sent by
main
machine
Number of
bits
Frame
header
1
Slave address
2
Command
type
1
2A
30 30
34
Example
5A
00 00
04
Description Frame
header
Address 00
No. 4
command
Operating
command
Setting data Checksum Frame end
2
4
4
1
31 31
00 11
FWD tape
frequency
setting
30 30
36 34
00 00
00 64
set frequency
10.0Hz
30 31
43 30
0D
00 00
00 79
0D
Hexadecimal
accumulation
Frame end
E550 Series Universal Low-Power Inverter
