Glossary
©
National Instruments Corporation
G-5
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 Active Scheduler.
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 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.
Live list
The list of all devices that are properly responding to the Pass Token.
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.
Loop
See
.
M
m
Meters.
Manufacturer’s
identification
An identifier used to correlate the device type and revision with its
device description and device description revision.
Menu
An area accessible from the command bar that displays a subset of the
possible command choices. In the NI-FBUS Configurator, refers to
menus defined by the manufacturer for a given block.
Method
Methods describe operating procedures to guide a user through
a sequence of actions.
Mode
Type of communication.
