National Instruments Fieldbus User Manual
Page 34
Glossary
© National Instruments Corporation
G-5
L
LAS See Link Active Scheduler.
LD
Linking device.
LED
Light-emitting diode.
link
A
Foundation Fieldbus network is made up of devices connected by a serial
bus. This serial bus is called a link. Also known as a segment.
Link Active Scheduler
Fieldbus device currently controlling access to the Fieldbus. A device that
is responsible for keeping a link operational. The LAS executes the link
schedule, circulates tokens, distributes time, and probes for new devices.
link master device
A device capable of becoming the LAS.
linkage
A connection between function blocks.
loop
M
menu
An area accessible from the command bar that displays a subset of the
possible command choices. In the NI-FBUS Configuration, refers to menus
defined by the manufacturer for a given block.
method
A method describes operating procedures to guide a user through a
sequence of actions.
m
Meter.
mm
Millimeter.
mode
Type of communication.
N
network address
Fieldbus network address of a device.
nifb.exe
NIFB process that must be running in the background for you to use your
Linking Device to communicate between the board and Fieldbus.