Generate Non-Clocked Digital Data

This example shows how to write data to two lines on an NI 6255.

Discover NI devices connected to your system and find the ID for the NI 6255.

d = daqlist("ni")

dev =

  3×4 table

    DeviceID                Description                  Model             DeviceInfo       
    ________    ___________________________________    __________    _______________________

     "Dev1"     "National Instruments(TM) USB-6255"    "USB-6255"    [1×1 daq.ni.DeviceInfo]
     "Dev2"     "National Instruments(TM) USB-6363"    "USB-6363"    [1×1 daq.ni.DeviceInfo]

Create a DataAcquisition object and add two digital output lines from port 0 on Dev1.

d = daq("ni");
addoutput(d,"Dev1","Port0/Line0:1","Digital");
d.Channels

ans = 

    Index    Type     Device       Channel       Measurement Type    Range           Name       
    _____    _____    ______    _____________    ________________    _____    __________________

      1      "dio"    "Dev1"    "port0/line0"      "OutputOnly"      "n/a"    "Dev1_port0/line0"
      2      "dio"    "Dev1"    "port0/line1"      "OutputOnly"      "n/a"    "Dev1_port0/line1"

Generate digital output.

write(d,[1 0])