Glossary
NI-FBUS Hardware and Software User Manual
G-6
ni.com
K
Kbits
Kilobits.
Kernel
The set of programs in an operating system that implements basic
system functions.
Kernel mode
The mode in which device drivers run on Windows.
L
LabVIEW DSC
The LabVIEW Datalogging and Supervisory Control (DSC) Module
builds on the power of LabVIEW for high channel count and
distributed applications. It adds easy networking, channel and
I/O management, alarm and event management, historical
datalogging, real-time trending, and OPC integration to the
LabVIEW environment.
LAS
See
Link
A F
OUNDATION
™
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 Schedule
A schedule of times in the macrocycle when devices must publish
their output values on the Fieldbus.
Link Active Scheduler
The Fieldbus device that is 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 that is capable of becoming the LAS.
Linkage
A connection between function blocks.
Linkage object
An object resident in a device that defines connections between
function block input and output across the network. Linkage objects
also specify trending connections.
Live list
The list of all devices that are properly responding to the Pass Token.
LM
Link Master.
Lookout
National Instruments Lookout is a full-featured object-based
automation software system that delivers unparalleled power and
ease of use in demanding industrial measurement and automation
applications.