Specifications

Chapter 5 Parameters|VFD-B Series
5-84 Revision July 2008, BE16, SW V4.08 & V5.00
Character ‘8’ ‘9’ ‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’
ASCII code 38H 39H 41H 42H 43H 44H 45H 46H
RTU mode:
Each 8-bit data is the combination of two 4-bit hexadecimal characters. For example, 64
Hex.
 2. Data Format
For ASCII mode:
( 7.N.2)
( 7.E.1)
Start
bit
0123456
Stop
bit
10-bit character frame
( 7.O.1)
Odd
parity
Start
bit
0
12
3456
Stop
bit
10-bit character frame
Even
parity
Start
bit
01234
5
6
Stop
bit
7-bit character
10-bit character frame
Stop
bit
7-bit character
7-bit character
For RTU mode:
Start
bit
0123456
Stop
bit
Stop
bit
8-bit character
11-bit character frame
( 8.N.2 )
Start
bit
01234
5
6
Even
p
arity
Stop
bit
11-bit character frame
( 8.E .1 )
Start
bit
01234
5
6
Stop
bit
11-bit character frame
( 8.O.1 )
Odd
parity
7
7
7
8-bit character
8-bit character
 3. Communication Protocol