Delta VFD-EL-W Series User Manual

Chapter 4 Parameters｜VFD-EL-W
124
(8, N, 1)
Start
bit
0
1 2
3 4 5 6
Stop
bit
8-data bits
10-bits character frame
7
(8, E, 2)
Start
bit
0
1 2
3 4 5 6
Stop
bit
8-data bits
12-bits character frame
Stop
bit
7
Even
parity
(8, O, 2)
Start
bit
0
1 2
3 4 5 6
Stop
bit
8-data bits
12-bits character frame
Stop
bit
7
Odd
parity
Communication Protocol
3.1 Communication Data Frame
ASCII mode:
STX
Start character = ‘ : ’ (3AH)
Address High
Communication address:
one 8-bit address consists of 2 ASCII codes
Address Low
Function High
Command code:
one 8-bit command consists of 2 ASCII codes
Function Low
DATA (n-1)
Contents of data:
n x 8-bit data consists of 2n ASCII codes
n ≤ 20, maximum of 40 ASCII codes (20 sets of data)
…….
DATA 0
LRC Check High
LRC checksum:
one 8-bit checksum consists of 2 ASCII codes
LRC Check Low
END High
End characters:
END High = CR (0DH), END Low = LF (0AH)
END Low
RTU mode:
START
A silent interval of more than 10 ms
Address
Communication address: 8-bit binary address
Function
Command code: 8-bit binary command
DATA (n-1)
Contents of data:
n×8-bit data, n ≤ 40 (20 x 16-bit data).
…….
DATA 0
LRC Check Low
CRC checksum:
one 16-bit CRC checksum consists of 2 8-bit binary characters
LRC Check High
END
A silent interval of more than 10 ms

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English