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[2] Optional frame
This section describes the structure and meaning of each optional frame.
Selecting request frame [host ⇒ inverter]
0
1 2
3
SOH
Station
ENQ
address
1
2
1
Byte
Field
ASCII format
0
SOH
SOH
1
Station
0 to 3，9
address
2
0 to 9
3
ENQ
ENQ
4
Command
a
e
f
m
5
Data
0 to 9,
A to F
6
7
8
9
ETX
ETX
10
BCC
0 to 9,
A to F
11
4
5
Data
Command
1
4
For BCC
Table 4.5 Selecting request frame
Value
Hexadecimal
format
01
Start of message
H
30
to 33
Station address of the inverter (decimal: ten's figure)
H
H
39
H
30
to 39
Station address of the inverter (decimal: one's figure)
H
H
05
Transmission request
H
Request command
61
H
Speed setting (S01)
65
H
Frequency command (S05)
66
H
6D
Operation command (S06)
H
Reset command (The data part is all zero)
30
to 39
Data's first character (hexadecimal: thousand's figure)
H
H
41
to 46
H
H
Data's second character (hexadecimal: hundred's
figure)
Data's third character (hexadecimal: ten's figure)
Data's fourth character (hexadecimal: one's figure)
03
End of message
H
30
to 39
Checksum 1 (hexadecimal: ten's figure)
H
H
41
to 46
H
H
Checksum 2 (hexadecimal: one's figure)
4-7
8
9
10 11
ETX
BCC
1
2
(byte)
Description
4.1 Messages
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