Publication 1763-RM001C-EN-P - October 2009
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jump
Changes the normal sequence of program execution. In ladder programs
a JUMP (JMP) instruction causes execution to jump to a specific rung in
the user program.
ladder logic
A graphical programming format resembling a ladder-like diagram. The
ladder logic programing language is the most common programmable
controller language.
least significant bit (LSB)
The element (or bit) in a binary word 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-First-Out)
The order that data is stored and retrieved from a file.
low byte
Bits 0 to 7 of a word.
logic
A general term for digital circuits or programmed instructions to perform
required decision making and computational functions.
Master Control Relay (MCR)
A hard-wired relay that can be de-energized by any series-connected
emergency stop switch.
mnemonic
A simple and easy to remember term that is used to represent a complex
or lengthy set of information.
Modbus RTU Slave
A half-duplex serial communication protocol.
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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