V750-series UHF RFID System User's Manual - PLCeasy
V750-series UHF RFID System User's Manual - PLCeasy
V750-series UHF RFID System User's Manual - PLCeasy
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Example FCS calculation for RS-232C<br />
FCS is the result of the horizontal parity calculation (Exclusive OR) of the data right after SOH to the end of the<br />
Command data.<br />
An example of FCS calculation:<br />
Command code and Command data: RDID –seq MOC –ant 1 –tmo 500<br />
FCS value: 19<br />
Command frame:<br />
[SOH]RDID –seq MOC –ant 1 –tmo 50019[CR][LF]<br />
Command code<br />
Command data<br />
SOH R D I D - s e q M O C - a n t 1 - t m o 5 0 0<br />
01 52 44 49 44 20 2D 73 65 71 20 4D 4F 43 20 2D 61 6E 74 20 31 20 2D 74 6D 6F 20 35 30 30<br />
FCS CR LF<br />
31 39 0D 0A<br />
Calculation<br />
Character ASCII Code (Hex) Binary<br />
R 52 01010010<br />
D 44 01000100<br />
I 49 01001001<br />
D 44 01000100<br />
(Space) 20 00100000<br />
- 2D 00101101<br />
s 73 01110011<br />
e 65 01100101<br />
q 71 01110001<br />
(Space) 20 00100000<br />
M 4C 01001100<br />
O 4F 01001111<br />
C 43 01000011<br />
(Space) 20 00100000<br />
- 2D 00101101<br />
a 61 01100001<br />
n 6E 01101110<br />
t 74 01110100<br />
(Space) 20 00100000<br />
1 31 00110001<br />
(Space) 20 00100000<br />
- 2D 00101101<br />
t 74 01110100<br />
m 6C 01101100<br />
o 6F 01101111<br />
(Space) 20 00100000<br />
5 35 00110101<br />
0 30 00110000<br />
0 30 00110000<br />
XOR 19 00011001<br />
“19” is translated to “31” and<br />
“39” as ASCII code.<br />
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