Instruction Manual
Appendix
A
A1
Number Systems
This appendix describes the four numbering systems the Mini-PLC-2/05
processor uses:
decimal
octal
binary
hexadecimal
These numbering systems differ by their number sets and place values.
Decimal Numbering System
Timers, counters, and math operations word values use the decimal numbering
system. This is a numbering system made up of ten digits: the numbers 0
through 9 (Table A.A). All decimal numbers are composed of these digits. The
value of a decimal number depends on the digits used and the place value of
each digit.
Table A.A
Numbering
System Conversion Chart
Hexadecimal Binary Decimal Octal
0 0000 0 000
1 0001 1 001
2 0010 2 002
3 0011 3 003
4 0100 4 004
5 0101 5 005
601106 006
701117 007
8 1000 8 010
9 1001 9 011
A 1010 10 012
B 1011 11 013
C 1100 12 014
D 1101 13 015
E 1110 14 016
F 1111 15 017
Objectives