National Instruments BridgeVIEW 用户手册
Glossary
G-6
© National Instruments Corporation
item
A channel or variable in a real-world device that is monitored or controlled
by a BridgeVIEW device server.
by a BridgeVIEW device server.
L
LabVIEW
Laboratory Virtual Instrument Engineering Workbench. A program
development application used commonly for test and measurement
purposes.
development application used commonly for test and measurement
purposes.
log deadband
The range through which a tag value must change before it is logged to
Citadel.
Citadel.
log resolution
The smallest change in a tag value stored in the historical database.
M
Man Machine
Interface (MMI)
Interface (MMI)
See Human Machine Interface (HMI).
MB
Megabytes of memory.
memory tag
A tag not connected to a real-world I/O point. Memory tags are used for
user-defined calculations. See also tag and network tag.
user-defined calculations. See also tag and network tag.
N
network tag
A tag remotely connected to any type of tag on another BridgeVIEW
Engine. See also tag and memory tag.
Engine. See also tag and memory tag.
O
object
Generic term for any item on the front panel or block diagram, including
controls, nodes, wires, and imported pictures.
controls, nodes, wires, and imported pictures.
OPC
OLE for Process Control. A COM-based standard defined by the OPC
foundation that specifies how to interact with device servers. COM is a
Microsoft 32-bit Windows technology.
foundation that specifies how to interact with device servers. COM is a
Microsoft 32-bit Windows technology.
operating tool
Tool used to enter data into controls as well as operate them. Resembles a
pointing finger.
pointing finger.