Publication 1764-UM001B-EN-P - April 2002
Glossary 3
DTE
Data Terminal Equipment
EMI
Electromagnetic interference.
embedded I/O
Embedded I/O is the controller’s on-board I/O. For MicroLogix
controllers, embedded I/O is all I/O residing at slot 0.
expansion I/O
Expansion I/O is I/O that is connected to the controller via a bus or
cable. MicroLogix 1200 controllers use Bulletin 1762 expansion I/O.
MicroLogix 1500 controllers use Bulletin 1769 expansion I/O. For
MicroLogix controllers, expansion I/O is all I/O residing at slot 1 and
higher.
encoder
A device that detects position, and transmits a signal representing that
position.
executing mode
Any run, remote run, or test mode.
false
The status of an instruction that does not provide a continuous logical
path on a ladder rung.
FIFO (First-In-First-Out)
The order that data is stored and retrieved from a file.
file
A collection of data or logic organized into groups.
full-duplex
A mode of communication where data may be transmitted and
received simultaneously (contrast with half-duplex).
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