
60
S
ect
io
n
4
Comma
n
d
a
nd Re
s
p
ons
e
For
ma
t
Heat-resistive RFID System
User's Manual
Section 4
Reading from/Writing to Tags
FCS Calculation Example
FCS (Frame Check Sequence) refers to 8-bit data with an exclusive OR (XOR) executed from the start
of the frame (@ symbol) until the final character, converted into 2-bit ASCII.
• Reading 5 Bytes from Address 0010H
0
2
2
8
FCS
@
0
5
R
D
FCS calculation range
*
CR
Terminator
1
0
H
1
0
0
Data
0100
0011
0011
0101
0100
0100
0011
0011
0011
0011
0011
0011
0011
0000
0000
0010
0010
0100
1000
0001
0000
0000
0001
0000
0000
0101
XOR
XOR
XOR
XOR
XOR
XOR
@
0
2
R
D
H
1
0
0
1
0
0
5
0010 1000
40
30
32
52
44
48
31
30
30
31
30
30
35
XOR
XOR
XOR
XOR
XOR
XOR
Command code
Controller No.
Read data
ASCII
Hexadecimal
Converting to
ASCII
Converting to
hexadecimal
Exclusive OR (XOR)
Converting to
ASCII
FCS data: 28
Содержание V680-CA1D
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Страница 46: ...44 Section 3 Communications Test Heat resistive RFID System User s Manual Section 3 Before Communications MEMO ...
Страница 112: ...110 Heat resistive RFID System User s Manual ...