
TMP High Performance Vector Control Inverter User Manual
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of communication takes place.
4. MODBUS Protocol
4.1 Character format
1. ASCII
Communication adopts hexadecimal system, and the valid ASCII characters
are:
“
0
”
…
“
9
”,
“
A”…
“
F”, which is expressed in hexadecimal format. Such as:
ASCII character:
‘
0
’
‘
1
’
‘
2
’
‘
3
’
‘
4
’
‘
5
’
‘
6
’
‘
7
’
‘
8
’
‘
9
’
‘
A
’
‘B’ ‘C’ ‘D’ ‘E’ ‘F’
ASCII code (Hex):30H 31H 32H 33H 34H 35H 36H 37H 38H 39H 41H
42H 43H 44H 45H 46H
7,N,2
start
0
1
2
3
4
5
6
stop
stop
7,E,1
start
0
1
2
3
4
5
6
even
stop
7,O,1
start
0
1
2
3
4
5
6
odd
stop
2. RTU
8,N,2
start
0
1
2
3
4
5
6
7
stop
stop
8,E,1
start
0
1
2
3
4
5
6
7
even
stop
8,O,1
start
0
1
2
3
4
5
6
7
odd
stop