Communication Protocol; Communication Data Frame: Ascii Mode; Communication Data Frame: Rtu Mode - Delta C2000 series User Manual

（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 Hi
Address Lo
Function Hi
Function Lo
DATA (n-1)
.......
DATA 0
LRC CHK Hi
LRC CHK Lo
END Hi
END Lo

Communication Data Frame: RTU mode

START
Address
Function
Chapter 12 Description of Parameter SettingsC2000 Series
1 2 3
7-data bits
10-bits character frame
1 2 3
8-data bits
11-bits character frame
3
1 2
8-data bits
11-bits character frame
1 2 3
8-data bits
11-bits character frame
Start character = ':' (3AH)
Communication address:
8-bit address consists of 2 ASCII codes
Command code:
8-bit command consists of 2 ASCII codes
Contents of data:
Nx8-bit data consist of 2n ASCII codes
n<=16, maximum of 32 ASCII codes
LRC check sum:
8-bit check sum consists of 2 ASCII codes
End characters:
END1= CR (0DH), END0= LF(0AH)
A silent interval of more than 10 ms
Communication address: 8-bit address
Command code: 8-bit command
147
Odd
5
4 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