I S R O St
Input Status Control Output String
B F N T C A
Bit Floating Point Integer Timer Counter ASCII
Byte
Group of 8 bits
Binary data storage
Binary =
Hexadecimal =
Octal =
Decimal =
Base 2
Base 16
Base 8
Base 10
Binary System
When information is stored using only 1’s and 0’s
Scan Progression In:
Sensor
Input Module
Input Image Table
Software Program
Scan Progression Out:
Software Program
Output Image Table
Output Terminal
Light/Switch
User memory is smaller/larger than Storage memory?
Larger
BCD
Binary Coded Decimal
Base 2 in groups of 4