National Instruments BridgeVIEW 用户手册

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页码 455
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G-1
Glossary
Prefix
Meanings
Value
m-
milli-
10
3
µ-
micro-
10
6
n-
nano-
10
9
A
access level
Numeric value between 0 and 255 that can be used to control access to 
your HMI.
ACK (Acknowledge)
The sequence action that indicates recognition of a new alarm.
alarm
An abnormal process condition. In BridgeVIEW, an alarm occurs if a tag 
value goes out of its defined alarm limits or if a tag has bad status. 
Alarm Summary
A display of tags currently in alarm, or a display of tags previously in an 
unacknowledged alarm state that have returned to a normal state.
analog tag
A continuous value representation of a connection to a real-world I/O point 
or memory variable. This type of tag can vary continuously over a range of 
values within a signal range.
Application 
Programming Interface
A specification of a set of software functions and their input and return 
parameters.
application software
The application created using the BridgeVIEW Development System and 
executed in the BridgeVIEW Run-Time System environment.
array
An ordered, indexed set of data elements of the same type.
ASCII
American Standard Code for Information Interchange.
attribute node
A special block diagram node you can use to control the appearance and 
functionality of controls and indicators.