Delta Electronics AC Motor Drive VFD007S23A User Manual page 119

Chapter 5 Parameters|VFD-S Series
Terminal Unit). Users can select the desired mode along with the serial port
communication protocol in Pr. 9-04.
Code Description:
ASCII mode:
Each 8-bit data is the combination of two ASCII characters. For example, a 1-byte data:
64 Hex, shown as '64' in ASCII, consists of '6' (36Hex) and '4' (34Hex).
Character
ASCII code
Character
ASCII code
RTU mode:
Each 8-bit data is the combination of two 4-bit hexadecimal characters. For example, 64
Hex.
2. Data Format
2.1 10-bit character frame (For 7-bit character):
( 7.N.2)
Start
bit
( 7.E.1)
Start
bit
( 7.O.1)
Start
bit
2.2 11-bit character frame (For 8-bit character):
5-64
'0' '1'
30H 31H
'8' '9'
38H 39H
0 1 2 3
7-bit character
10-bit character frame
0 1 2 3
7-bit character
10-bit character frame
0 1 2
7-bit character
10-bit character frame
'2' '3' '4'
32H 33H 34H
'A' 'B' 'C'
41H 42H 43H
5
4 6
4 5 6
3 4 5 6
Revision August 2006, SE08, SW V2.61
'5' '6' '7'
35H 36H 37H
'D' 'E' 'F'
44H 45H 46H
Stop
Stop
bit
bit
Even
Stop
parity
bit
Odd
Stop
parity
bit