National Instruments 370578B-01 用户手册
Glossary
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G-3
E
Event
An occurrence on a device that causes a Fieldbus entity to send the
Fieldbus event message.
Fieldbus event message.
F
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.
systems to instrumentation. A process control local area network
defined by ISA standard S50.02.
Fieldbus cable
Shielded, twisted pair cable made specifically for Fieldbus that has
characteristics important for good signal transmission and are within
the requirements of the Fieldbus standard.
characteristics important for good signal transmission and are within
the requirements of the Fieldbus standard.
Fieldbus Foundation
An organization that developed a Fieldbus network specifically based
upon the work and principles of the ISA/IEC standards committees.
upon the work and principles of the ISA/IEC standards committees.
Fieldbus Network Address
Location of a board or device on the Fieldbus; the Fieldbus node
address.
address.
Foundation Fieldbus
specification
specification
The communications network specification that the Fieldbus
Foundation created.
Foundation created.
FP-3000
National Instruments network interface module for the
FieldPoint I/O system.
FieldPoint I/O system.
Function block
A named block consisting of one or more input, output, and contained
parameters. The block performs some control function as its
algorithm. Function blocks are the core components you control a
system with. The Fieldbus Foundation defines standard sets of
function blocks. There are ten function blocks for the most basic
control and I/O functions. Manufacturers can define their own
function blocks.
parameters. The block performs some control function as its
algorithm. Function blocks are the core components you control a
system with. The Fieldbus Foundation defines standard sets of
function blocks. There are ten function blocks for the most basic
control and I/O functions. Manufacturers can define their own
function blocks.
Function Block Application
The block diagram that represents your control strategy.
H
H1
The 31.25 kbit/second type of Fieldbus.
HSE
High Speed Ethernet. The 100 Mbit/second type of Fieldbus.
HMI
Human-Machine Interface. A graphical user interface for the process
with supervisory control and data acquisition capability.
with supervisory control and data acquisition capability.