National Instruments Module SCXI-1125 - Manual (Page 42)

Chapter 5 Using the SCXI-1125
© National Instruments Corporation 5-5 SCXI-1125 User Manual
The overall input impedance is reduced when attenuating the input, but this
is acceptable in most applications. Refer to terminal block installation
guides for more information. Appendix A,
Specifications , shows how the
analog input specifications are affected with the addition of the SCXI-1327
terminal block.
Developing Your Application in NI-DAQmx
Note If you are not using an NI ADE, using an NI ADE prior to version 7.0, or are using
an unlicensed copy of an NI ADE, NI License Manager displays additional dialog boxes
so you can create a task or global channel in unlicensed mode. These dialog boxes continue
to appear until you install version 7.0 or later of an NI ADE.
This section describes how to configure and use NI-DAQmx to control the
SCXI-1125 in LabVIEW, LabWindows/CVI, and Measurement Studio.
These ADEs provide greater flexibility and access to more settings than
MAX, but you can use ADEs in conjunction with MAX to quickly create a
customized application.
Typical Program Flowchart
Figure 5-1 shows a typical program flowchart for creating a task to
configure channels, take a measurement, analyze and present the data, stop
the measurement, and clear the task.
Table 5-2. Extended Gain and Range Using the TBX-1316
Overall
Gain
Input
Range
SCXI-1125
Gain
TBX-1316
Attenuation
0.005 ± 1000 V 1 200
0.01 ± 500 V 2 200
0.025 ± 200 V 5 200
0.05 ± 100 V 10 200
0.1 ± 50 V 20 200
0.25 ± 20 V 50 200
1.25 ± 4 V 250 200