Delta Electronics Elevator Drive VFD-VL User Manual page 143

Chapter 4 Parameters|
10-bit character frame (For ASCII):
11-bit character frame (For RTU):
( 8.N.2 )
Start
( 8.E.1 )
Start
( 8.O.1 )
Start
3. Communication Protocol
3.1 Communication Data Frame:
ASCII mode:
4-88
( 7.N.2)
Start
0 1 2
bit
7-bit character
10-bit character frame
( 7.E.1)
Start
0
1 2
bit
7-bit character
10-bit character frame
( 7.O.1)
Start
0 1 2
bit
7-bit character
10-bit character frame
0 1 2
bit
8-bit character
11-bit character frame
0 1 2
bit
8-bit character
11-bit character frame
0 1 2
bit
8-bit character
11-bit character frame
STX Start character ':' (3AH)
Address Hi Communication address:
8-bit address consists of 2 ASCII codes
Address Lo
Function Hi Command code:
8-bit command consists of 2 ASCII codes
Function Lo
DATA (n-1) Contents of data:
to Nx8-bit data consist of 2n ASCII codes
DATA 0 n<=16, maximum of 32 ASCII codes
LRC CHK Hi LRC check sum:
8-bit check sum consists of 2 ASCII codes
LRC CHK Lo
END Hi End characters:
END1= CR (0DH), END0= LF(0AH)
END Lo
3 4 5 6
3 4 5 6
3 4 5
3 4 5 6
3 4 5 6
5
3 4 6
Stop
Stop
bit
bit
Even
Stop
parity
bit
Odd
Stop
6
parity
bit
Stop Stop
7
bit bit
Even
Stop
7
parity
bit
Odd
Stop
7
parity
bit
Revision Nov. 2008, VLE1, SW V1.03