National Instruments SCXI-1125

Contents

Configuring Channel Properties........................................................5-8

Acquiring, Analyzing, and Presenting..............................................5-9

Completing the Application..............................................................5-9

Developing an Application Using LabVIEW..................................................5-9

Using a DAQmx Channel Property Node in LabVIEW...................5-11

Specifying Channel Strings in NI-DAQmx.....................................................5-12

Text Based ADEs..............................................................................5-14

Measurement Studio (Visual Basic, .NET, and C#)........................................5-14

Programmable NI-DAQmx Properties..............................................5-14

Developing Your Application in Traditional NI-DAQ (Legacy)..................................5-15

Traditional NI-DAQ (Legacy) in LabVIEW...................................................5-16

Typical Program Flow......................................................................5-17

Configure the SCXI-1125 Settings Using Traditional NI-DAQ

(Legacy) in LabVIEW..................................................................................5-18

Configure, Start Acquisition, and Take Readings Using Traditional

NI-DAQ (Legacy) in LabVIEW...................................................................5-19

Convert Scaling Using Traditional NI-DAQ (Legacy) in LabVIEW .............5-20

Analyze and Display Using Traditional NI-DAQ (Legacy) in LabVIEW......5-20

Traditional NI-DAQ (Legacy) in Text-Based ADEs......................................5-21

Configuring System Settings Using Traditional NI-DAQ (Legacy) C API....5-21

Configure Module Settings Using Traditional NI-DAQ (Legacy) C API ......5-22

Perform Offset Null Compensation

Using Traditional NI-DAQ (Legacy) C API................................................5-23

Perform Acquisition Using Traditional NI-DAQ (Legacy) C API................. 5-23

Perform Scaling, Analysis, and Display..........................................................5-24

Using Software for Multiplexed Scanning......................................................5-24

LabVIEW and the SCXI Channel String..........................................5-25

LabVIEW and the Virtual Channel String........................................5-26

Performing a Multiplexed Scan.......................................................................5-27

C and Low-Level DAQ Functions....................................................5-28

Using Software for Parallel Scanning.............................................................5-28

LabVIEW and Parallel Mode............................................................5-28

C and Parallel Mode..........................................................................5-29

Other Application Documentation and Material ...........................................................5-29

Traditional NI-DAQ (Legacy) CVI Examples................................................5-29

Traditional NI-DAQ (Legacy) Measurement Studio Examples......................5-29

Calibration.....................................................................................................................5-30

Calibration Procedures....................................................................................5-30

One-Point Offset Calibration............................................................5-31

Two-Point Gain and Offset Calibration............................................5-32