Allen-Bradley PLC-2/30 - Numbering System Conversion Chart; Octal Representation; Hexadecimal Numbering

Number Systems
Appendix B
B6
Table B.B
Octal
Representation
Place Value
2
2
(4) 2
1
(2) 2
0
(1)
Octal Equivalent
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
The hexadecimal numbering system has a number set of 16 digits: the
numbers 0-9 and the letters A-F (Table B.C). The letters A-F represent the
decimal numbers 10-15 respectively.
Table B.C
Numbering
System Conversion Chart
Hexadecimal Binary Decimal Octal
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
000
001
002
003
004
005
006
007
010
011
012
013
014
015
016
017
A hexadecimal number can be converted to a decimal number by
multiplying the hexadecimal digit by its corresponding place value
(Figure B.6).
B.4
Hexadecimal Numbering
System
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