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B.4 hexadecimal numbering system – Rockwell Automation 1772-LP3 PLC - 2/30 Programmable Controller Programming and Operations Manual User Manual

Page 330

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Number Systems

Appendix B

BĆ6

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