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Chapter 4      Analog Input Reference

Measure Data Acquisition User Manual

4-8

© National Instruments Corporation

Table 4-3. Choices for Hardware Digital Trigger

Start acquisition on trigger

Select this option if you want to start your acquisition on
the rising edge of the 

PFI0/EXTTRIG/STARTTRIG

(depending on the board you are using) input on the
connector. Otherwise, Measure starts the acquisition
with a software trigger.

Acquire until trigger

Select this option if you want to stop your acquisition on
the rising edge of the 

PFI1/EXTTRIG/STOPTRIG

(depending on the board you are using) signal on the
connector. Otherwise, the acquisition ends after Measure
acquires all the scans.

scans after trigger

Specify the number of scans to acquire after the stop
trigger occurs.

Timeout (seconds)

Specify a timeout value in seconds. If you want Measure
to calculate a timeout value for you, enter 

-1

. If you

specify an external scan clock and a timeout value of

-1

, Measure configures a timeout of one second.

Mode Reference

The Analog Input Mode applies to all the channels in your scan list.
Select Analog Input Configuration»Mode to open the Analog Input
Mode dialog box, shown in Figure 4-5.

Figure 4-5. Analog Input Mode Dialog Box