National Instruments 373392C-01 User Manual download pdf (Page 33)

Chapter 2 Measurement Studio .NET Class Libraries

Use the features in the Network Variable class library to perform the

following operations:

• Exchange different types of data between Measurement Studio,

LabVIEW, LabWindows/CVI, and other applications that support

NI-Publish Subscribe Protocol (

psp:) and OLE for Process Control

(

opc:) servers. Exchanging data between Measurement Studio

applications and OPC servers requires LabVIEW DSC.

Note Measurement Studio and LabWindows/CVI refer to variables as network variables

and LabVIEW refers to variables as shared variables. However, you can read to and write

from Measurement Studio and LabWindows/CVI network variables with LabVIEW

shared variables.

• Use Windows Forms and Web Forms data sources to expose Network

Variable data items that you can bind to properties of a Windows

Forms or a Web Forms control.

•Use the

NationalInstruments.NetworkVariable.Browser

classes to discover network variables and processes.

•Use the

NationalInstruments.NetworkVariable.

ServerProcess

, NationalInstruments.NetworkVariable.

ServerProcessInfo

, NationalInstruments.

NetworkVariable.ServerVariable

, and

NationalInstruments.NetworkVariable.

ServerVariableInfo

classes to explicitly create network variables.

• Use the Network Variable Browser dialog box to quickly locate and

select data items on other computers and servers. The Browser Dialog

is included in the WindowsForms class.

Tip For more detailed information about the Network Variable class library, refer to the

Using the Measurement Studio Network Variable .NET Library section in the

NI Measurement Studio Help.

DataSocket

The Measurement Studio DataSocket .NET class library is in the

NationalInstruments.Net namespace. Use the DataSocket class

library to transfer live measurement data over the Internet or an intranet,

between applications on the same computer, and to and from files. Use the

classes in the DataSocket class library to perform the following operations:

• Read and write data between different data sources and targets.

• Use a single, simple API to communicate with several types of servers,

including DataSocket Servers (

dstp:), Web servers (http:), file

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