3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.9 Numeric Values which can be Used in Sequence Programs
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3.9 Numeric Values which can be Used in Sequence Programs
Numeric and alphabetic data are expressed by "0" (OFF) and "1" (ON) numerals in the
CPU module.
This expression form is called "binary code" (BIN).
The hexadecimal (HEX) expression form in which BIN data are expressed in 4-bit units,
and the BCD (binary coded decimal) expression form are applicable to the CPU module.
Real numbers may also be used.(
Table3.8 shows the numeric expressions of BIN, HEX, BCD and DEC (decimal).
Table3.8 BIN, HEX, BCD, and Decimal Numeric Expressions
DEC (Decimal)
HEX (Hexadecimal)
BIN (Binary)
BCD(Binary Coded Decimal)
0
0
0
0
1
1
1
1
2
2
10
10
3
3
11
11
•
•
•
•
•
•
•
•
•
•
•
•
9
9
1001
1001
10
A
1010
1
0000
11
B
1011
1
0001
12
C
1100
1
0010
13
D
1101
1
0011
14
E
1110
1
0100
15
F
1111
1
0101
16
10
1
0000
1
0110
17
11
1
0001
1
0111
•
•
•
•
•
•
•
•
•
•
•
•
47
2F
10
1111
100
0111
•
•
•
•
•
•
32766
7FFE
0111
1111
1111
1110
--
32767
7FFF
0111
1111
1111
1111
--
-32768
8000
1000
0000
0000
0000
1000
0000
0000
0000
-32767
8001
1000
0000
0000
0001
1000
0000
0000
0001
•
•
•
•
•
•
-2
FFFE
1111
1111
1111
1110
--
-1
FFFF
1111
1111
1111
1111
--