Delta C200 Series User Manual page 220

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（7 , O , 1）
Start
bit
11-bit character frame (For RTU):
（8 , N , 2）
Start
bit
（8 , E , 1）
Start
bit
（8 , O , 1）
Start
bit
2. Communication Protocol
Communication Data Frame: ASCII mode
Address Hi
Address Lo
Function Hi
Function Lo
DATA (n-1)
LRC CHK Hi
LRC CHK Lo
Communication Data Frame: RTU mode
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0 1 2
7-data bits
10-bits character frame
0 1 2
8-data bits
11-bits character frame
0 1 2
8-data bits
11-bits character frame
0 1 2
8-data bits
11-bits character frame
STX 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
DATA 0
LRC check sum:
8-bit check sum consists of 2 ASCII codes
End characters:
END Hi
END1= CR (0DH), END0= LF(0AH)
END Lo
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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Chapter 11 Description of Parameter Settings|C200 Series
5
3 4 6
3 4 5 6
3 4 5 6
3 4 5 6
11-121
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Odd
Stop
parity
bit
Stop
Stop
7
bit
bit
Even
Stop
7
parity
bit
Odd
Stop
7
parity
bit
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