Allen-Bradley SLC 500 Series - Hexadecimal Numbers

Publication 1747-RM001G-EN-P - November 2008
Number Systems F-3
Hexadecimal Numbers
Hexadecimal numbers use single characters with equivalent decimal values
ranging from 0 to 15.
The position values of hexadecimal numbers are powers of 16, beginning with
16
0 at the right:
Example
Hexadecimal number 218A has a decimal equivalent value of 8586.
1x2
14
= 16384
1x2
13
= 8192
1x2
12
= 4096
1x2
11
= 2048
1x2
10
= 1024
1x2
9
= 512
1x2
8
= 256
1x2
7
= 128
1x2
6
= 64
1x2
5
= 32
1x2
4
= 16
1x2
3
= 8
1x2
2
= 4
1x2
1
= 2
1x2
0
= 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 32767
1x2
15
= 32768 This position is always 1 for negative numbers.
HEX 0123456789A B C D E F
Decimal0123456789101112131415
16
3
16
2
16
1
16
0