National Instruments SCXI-1121 Manuel D’Utilisation

© National Instruments Corporation

Programming for scanned data acquisition involves programming your 
data acquisition board, modules, and Slot 0. In general, the steps to be taken 
are as follows:

1.

Perform all data acquisition board programming to the point of 
enabling the data acquisition.

2.

Perform all module programming.

3.

Program the Slot 0 hardscan circuitry.

4.

Enable the data acquisition, trigger it either through software or 
hardware, and service the data acquisition.

The MIO and Lab-PC+ boards can do all types of scanning. Lab-NB, 
Lab-PC, Lab-PC+, Lab-LC, and PC-LPM-16 boards support only 
single-module parallel scanning, and do not support any of the multiplexed 
scanning modes. Notice that single-module parallel scanning is typically 
done without any module or Slot 0 programming only programming the 
data acquisition board is necessary.

The programming steps for your data acquisition board are given in your 
data acquisition board user manual. You should follow the instructions in 
the following sections:

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