National Instruments BridgeVIEW 用户手册
Glossary
G-2
© National Instruments Corporation
B
bit array tag
A multibit value representation of a connection to a real-world I/O point or
memory variable. In BridgeVIEW, this type of tag can be comprised of up
to 32 discrete values.
memory variable. In BridgeVIEW, this type of tag can be comprised of up
to 32 discrete values.
block diagram
A pictorial description or representation of a program or algorithm. In
BridgeVIEW, the block diagram, which consists of executable icons called
nodes and wires that carry data between the nodes, is the source code for
the VI. The block diagram resides in the Diagram window of the VI.
BridgeVIEW, the block diagram, which consists of executable icons called
nodes and wires that carry data between the nodes, is the source code for
the VI. The block diagram resides in the Diagram window of the VI.
Boolean controls and
indicators
indicators
Front panel objects used to manipulate and display or input and output
Boolean (TRUE or FALSE) data. Several styles are available, such as
switches, buttons and LEDs.
Boolean (TRUE or FALSE) data. Several styles are available, such as
switches, buttons and LEDs.
breakpoint
Mode that halts execution when a subVI is called. You set a breakpoint by
clicking on the Breakpoint button in the execution palette.
clicking on the Breakpoint button in the execution palette.
BridgeVIEW
A program development application for real-time process monitoring and
control. BridgeVIEW uses the graphical development environment
called G.
control. BridgeVIEW uses the graphical development environment
called G.
BridgeVIEW Engine
The heart of the BridgeVIEW system. It maintains the Real-Time Database
of all tag values and alarm states. The BV Engine runs as a separate process,
independent of your HMI application.
of all tag values and alarm states. The BV Engine runs as a separate process,
independent of your HMI application.
BridgeVIEW Run-Time
System
System
An execution environment for applications created using the BridgeVIEW
Development System.
Development System.
broken VI
VI that cannot be compiled or run; signified by a broken arrow in the Run
button.
button.
C
Case structure
Conditional branching control structure, which executes one and only one
of its subdiagrams based on its input. It is the combination of the IF, THEN,
ELSE, and CASE statements in control flow languages.
of its subdiagrams based on its input. It is the combination of the IF, THEN,
ELSE, and CASE statements in control flow languages.
Citadel
A database for storing historical tag values.