ASCII mode:

Chapter 5 ParametersVFD-S Series

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

‘0’

‘1’

‘2’

‘3’

‘4’

‘5’

‘6’

‘7’

 

ASCII code

30H

31H

32H

33H

34H

35H

36H

37H

 

 

 

 

 

 

 

 

 

 

 

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

2.110-bit character frame (For 7-bit character):

 

( 7.N.2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start

0

1

2

3

4

5

6

Stop

Stop

 

 

 

bit

bit

bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-bit character

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

-bit character frame

 

 

 

 

 

 

 

 

( 7.E.1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start

0

1

2

3

4

5

6

Even

Stop

 

 

 

 

bit

parity

bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-bit character

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

-bit character frame

 

 

 

 

 

 

 

 

( 7.O.1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start

0

1

2

3

4

5

6

Odd

Stop

 

 

 

bit

parity

bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-bit character

10-bit character frame

5-64

Revision August 2008, SE09, SW V2.61

Page 121
Image 121
Delta Electronics VFD-S manual ASCII mode, RTU mode, 7.N.2, 7.E.1, 7.O.1