National Instruments SCXI -1125 用户手册

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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, 

, shows how the 

analog input specifications are affected with the addition of the SCXI-1327 
terminal block.

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.

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

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