User manual

Chapter 3 Software Overview

Digital Group Block I/O Applications

NI-DAQ also contains group digital I/O functions, which operate on blocks

of data. Figure 3-24 outlines the basic steps for applications that use

block I/O.

Figure 3-24. Digital Block Input or Output Application

DIG_Block_PG_Config

DIG_Grp_Mode

DIG_Grp_Config

DIG_Scan_Setup

DIG_Block_In

DIG_Block_Out

DIG_Block_Check

DIG_Block_Clear

Configure DIO-32F,

DIO 6533 (DIO-32HS),

PCI-6115, and PCI-6120

device groups for input

and output.

Alter handshaking mode?

Enable or disable pattern

generation?

Enable or disable start

and stop triggers?

Start block output.

Any more data to input or output?

Clear block operation if

DIG_Block_Check did not.

Yes

Start block input.

Configure DIO-24, 6025E devices,

AT-MIO-16DE-10, DIO-96, Lab-PC+,

SCXI-1200, DAQCard-1200, or

DAQPad-1200 groups for input or output.

DIG_Trigger_Config

(DIO 6533 only)

(DIO-32F and DIO 6533 only)