National Instruments NI-FBUS User Manual

Page 140

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Glossary

NI-FBUS Configurator User Manual

G-4

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Device Description Service

A set of functions that applications use to access Device Descriptions.

Device ID

An identifier for a device that the manufacturer assigns.
No two devices can have the same device ID.

Device tag

A name you assign to a Fieldbus device.

DI

Discrete Input.

Distributed control

Process control distributed among several devices connected by
network.

DLL

See Dynamic Link Library.

DO

Discrete Output.

Dynamic Link Library

A library of functions and subroutines that links to an application at
run time.

E

Event

An occurrence on a device that causes a Fieldbus entity to send the
Fieldbus event message.

F

FAS

Fieldbus Access Sublayer.

FB

Function Block.

FBAP

See

Function Block Application

.

FF

Foundation Fieldbus.

Field device

A Fieldbus device connected directly to a Fieldbus.

Fieldbus

An all-digital, two-way communication system that connects control
systems to instrumentation. A process control local area network
defined by ISA standard S50.02.

Fieldbus Foundation

An organization that developed a Fieldbus network specifically based
upon the work and principles of the ISA/IEC standards committees.

Foundation Fieldbus
specification

The communications network specification that the Fieldbus
Foundation created.

FP-3000

National Instruments network interface module for the FieldPoint I/O
system.

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