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Numerical Values Usable in Sequence Program
3.8 Numerical Values Usable in Sequence Program
The built-in PLC function represents numerical values, alphabets and other data in two
statuses: 0 (OFF) and 1 (ON).
The data represented by these 0s and 1s are called BIN (binary code).
The built-in PLC function can also use HEX (hexadecimal code) that represents BIN
data in blocks of four bits.
Table 2.1 indicates the numerical representations of BIN, HEX and decimal code.
Table 3.1 Numerical Representations of BIN,
HEX and Decimal Code
DEC
(Decimal Code)
HEX
(Hexadecimal Code)
BIN
(Binary Code)
0
1
2
3
•
•
•
•
•
•
9
10
11
12
13
14
15
16
17
•
•
•
•
•
•
47
0
1
2
3
•
•
•
•
•
•
9
A
B
C
D
E
F
10
11
•
•
•
•
•
•
2F
0
1
10
11
•
•
•
•
•
•
1001
1010
1011
1100
1101
1110
1111
10000
10001
•
•
•
•
•
•
101111