Delta C200 Series, User Manual

Page: 220 / 363

Chapter 11 Description of Parameter Settings
|
C200 Series
11-121
（
7 , O , 1
）
Odd
parity
Start
bit
0 1 2 3 4 5 6
Stop
bit
7-data bits
10-bits character frame
11-bit character frame (For RTU):
（
8 , N , 2
）
Start
bit
0
1 2
3 4 5 6
Stop
bit
8-data bits
11-bits character frame
Stop
bit
7
（
8 , E , 1
）
Start
bit
0 1 2 3 4 5 6
Stop
bit
8-data bits
11-bits character frame
7
Even
parity
（
8 , O , 1
）
Start
bit
0 1 2 3 4 5 6
Stop
bit
8-data bits
11-bits character frame
7
Odd
parity
2. Communication Protocol
Communication Data Frame: ASCII mode
STX Start character = ‘:’ (3AH)
Address Hi
Address Lo
Communication address:
8-bit address consists of 2 ASCII codes
Function Hi
Function Lo
Command code:
8-bit command consists of 2 ASCII codes
DATA (n-1)
…….
DATA 0
Contents of data:
Nx8-bit data consist of 2n ASCII codes
n<=16, maximum of 32 ASCII codes
LRC CHK Hi
LRC CHK Lo
LRC check sum:
8-bit check sum consists of 2 ASCII codes
END Hi
END Lo
End characters:
END1= CR (0DH), END0= LF(0AH)
Communication Data Frame: RTU mode
START A silent interval of more than 10 ms
Address Communication address: 8-bit address
Function Command code: 8-bit command
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