Delta VFD-B, Руководство пользователя

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Chapter 5 Parameters
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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
0 1 2 3 4 5 6
Stop
bit
10-bit character frame
( 7.O.1)
Odd
parity
Start
bit
0
1 2
3 4 5 6
Stop
bit
10-bit character frame
Even
parity
Start
bit
0 1 2 3 4 5 6
Stop
bit
7-bit character
10-bit character frame
Stop
bit
7-bit character
7-bit character
For RTU mode:
Start
bit
0 1 2 3 4 5 6
Stop
bit Stop
bit
8-bit character
11-bit character frame
( 8.N.2 )
Start
bit
0 1 2 3 4 5 6
Even
parity
Stop
bit
11-bit character frame
( 8.E.1 )
Start
bit
0 1 2 3 4 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