Delta Electronics VFD007S23A manual Ascii mode, RTU mode

Chapter 5 ParametersVFD-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	‘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

2.2 11-bit character frame (For 8-bit character):

5-64 Revision August 2006, SE08, SW V2.61