Delta Electronics VFD-M manual Communication Protocol, ASCII mode, 8.N.2Pr.92=3, 8.E.1Pr.92=4

Chapter 4 Parameters

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

( 8.N.2:Pr.92=3)
Start		0	1	2		3	4	5	6	7	Stop	Stop
	bit										bit	bit
					8-data bits
				11	-bits character frame
( 8.E.1:Pr.92=4)
Start		0	1	2		3	4	5	6	7	Even	Stop
	bit										parity	bit
					8-data bits
				11	-bits character frame
( 8.O.1:Pr.92=5)
Start		0	1	2		3	4	5	6	7	Odd	Stop
	bit										parity	bit

8-data bits

11-bits character frame

3.Communication Protocol

3.1Communication Data Frame:

STX

ADR1

ADR0

CMD1

CMD0

0

1

......

N-1

N

ETX

CHK1

CHK0

02H

Address

CMD

Data characters

03H

Check Sum

3.2ASCII mode:

STX	Start character: (3AH)
ADR 1
ADR 0	Communication address:
CMD 1	8-bit address consists of 2 ASCII codes
CMD 0
DATA (n-1)	Contents of data:
	n x 8-bit data consist of 2n ASCII codes.
……
	n≦25 maximum of 50 ASCII codes
DATA 0
LRC CHK 1	LRC check sum:
LRC CHK 0	8-bit check sum consists of 2 ASCII codes
END 1	END characters:
	END 1 = CR (0DH), END 0 = LF (0AH)
END 0

Revision May 2008, ME14, SW V3.04 4-61