Digital Output mode is used to generate output to digital ports/lines. The user requires to select the DAQmx Global Channel and click on the button corresponding to the port/lines, which will give a high output and LED goes high. The output is seen on the Multimeter.
Ports and lines are operated simultaneously with the digital input port.
NI USB-6002, LabVIEW
1. Connect USB-6002 through USB port.
2. Download NI-DAQmx 18.0.0, Execute sample code "USB6002-DO-port" and run it.
3. Click on the button corresponding to the port/lines.
4. Monitor the subsequent DO line status (High or Low) on multimeter.
http://www.ni.com/download/ni-daqmx-18.0/7574/en/
http://www.ni.com/en-in/shop/select/multifunction-io-device?modelId=124895
Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.