Delta C2000 Series User Manual page 548

(7, O, 1)
Start
0
bit
11-bit character frame (For RTU):
(8, N, 2)
Start
0
bit
(8, E, 1)
Start
0
bit
(8, O, 1)
Start
0
bit
3. Communication Protocol
Communication Data Frame:
ASCII mode:
STX
Address High
Address Low
Function High
Function Low
DATA (n-1)
.......
DATA 0
LRC Check High
LRC Check Low
END High
END Low
1 2 3
7-data bits
10-bits character frame
3
1 2
8-data bits
11-bits character frame
1 2 3
8-data bits
11-bits character frame
1 3
2
8-data bits
11-bits character frame
Start character = ':' (3AH)
Communication address:
one 8-bit address consists of 2 ASCII codes
Command code:
one 8-bit command consists of 2 ASCII codes
Contents of data:
n x 8-bit data consists of 2n ASCII codes
n ≤ 16, maximum of 32 ASCII codes (20 sets of data)
LRC checksum:
one 8-bit checksum consists of 2 ASCII codes
End characters:
END1= CR (0DH), END0= LF(0AH)
12.1-09-3
Chapter 12 Description of Parameter SettingsC2000
Odd
4 5 6
parity
4 5 6
4 5 6
4 5 6
Stop
bit
Stop
Stop
7
bit
bit
Even
Stop
7
parity
bit
Odd
Stop
7
parity
bit