National Instruments BridgeVIEW 用户手册

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页码 455
Chapter 1
Introduction
1-10
© National Instruments Corporation
the value, the timestamp of when the item was sampled, and status 
information to the BridgeVIEW Engine. Output items are written on 
demand only when the BridgeVIEW Engine passes a new output 
value to the server.
The device server monitors the items and encapsulates all device and 
hardware-specific details, thereby providing a hardware- and 
software-independent layer to the user HMI and SCADA application. 
For more information about device servers, see Chapter 8, 
.
Where Should I Start?
The following table lists what is included in the different installation types.
We recommend that you work through the activities in this manual. 
These activities comprehensively illustrate how BridgeVIEW works. 
If you are new to the G programming language, begin with the activities 
in Chapters 9 through 16, and then continue with those in Chapters 
through 8. If you are an experienced G programmer, begin with Chapter 
and continue through the entire manual so that you might learn the 
important BridgeVIEW concepts, and review any G programming 
techniques that you might be familiar with already.
Save all of the VIs you create with the BridgeVIEW activities in the 
BridgeVIEW\Activity
 directory. There is also a Solution directory 
Installation 
Type
Includes
Minimum
Tag Configuration Editor, basic security tools, 
core VI libraries
Standard
Tag Configuration Editor, all security tools, 
Historical Trend Viewer, Tag Browser, Tag 
Monitor, core VI libraries, advanced analysis 
libraries, online help, activities, and graphics files
Full
Tag Configuration Editor, all security tools, 
Historical Trend Viewer, Tag Browser, 
Tag Monitor, core VI libraries, advanced 
analysis libraries, online help, activities, 
graphics files, Instrument Wizard, DAQ, GPIB, 
and VISA libraries
Custom
Select which utilities and libraries to install.