Rockwell Automation 1732E-IB16M12SOEDR EtherNet/IP ArmorBlock supporting Sequence of Events User Manual

Page 111

Advertising
background image

Publication 1732E-UM002A-EN-P - March 2010

Glossary 103

I/O

Inputs and Outputs. Consists of input and output devices that provide and/or
receive data from the controller.

jump

Change in normal sequence of program execution, by executing an instruction
that alters the program counter (sometimes called a branch). In ladder
programs a JUMP (JMP) instruction causes execution to jump to a labeled
rung.

ladder logic

A program written in a format resembling a ladder-like diagram. The program
is used by a programmable controller to control devices.

LSB

Least significant bit. The digit (or bit) in a binary word (code) that carries the
smallest value of weight.

LED

Light Emitting Diode. Used as status indicator for processor functions and
inputs and outputs.

LIFO

Last-In-Last-Out. The order that data is entered into and retrieved from a file.

low byte

Bits 0...7 of a word.

logic

A process of solving complex problems through the repeated use of simple
functions that can be either true or false. General term for digital circuits and
programmed instructions to perform required decision making and
computational functions.

M12

Metric size 12 mm circular sealed connector, also called Micro connector.

Advertising