NI myDAQ Simulink toolbox

Hi, I would like to use NI myDAQ in Simulink but I cannot find it through the Simulink toolbox. Is it any possibility for using it in Simulink. Regards.

Answer 1

[Archita P]

Firstly, make sure that the 'nidaq' legacy interface adaptor is successfully registered. In Simulink data acquisition that uses legacy interface, you can try the below mentioned workaround, if the device is not being detected inside the DAQ blocks. This issue is specific to Data Acquisition with Legacy interface in 32 bit MATLAB.

Run the MATLAB once in elevated Administrative mode in order to register the Data Acquisition Toolbox adaptor:

1. Right click on the MATLAB shortcut or the file MATLAB.exe and select "Run as Administrator". 2. Once MATLAB starts execute the "daqregister" command as normal- >> daqregister('nidaq') 3. Close MATLAB and start it as usual.

After adaptor registration with daqregister('nidaq') as described in the solution above , verify that the device is accessible with the legacy interface: >> hw = daqhwinfo('nidaq') >> hw.InstalledBoardIds >> hw.BoardNames >> hw.ObjectConstructorName

[Walter Roberson]

Note: 32 bit Legacy interface was only available until R2015b.

[Ali Zolfagharian]

Thanks for your responses. The daq is registered since I received 'mwnidaq.dll' successfully registered. Yet I can find the myDAQ ID in Simulink block!

[Jan]

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Ali Zolfagharian wrote:

That is a comprehensive and very essential answer to apply myDAQ in Simulink

Answer 2

[Walter Roberson]

https://www.mathworks.com/hardware-support/ni-mydaq.html

You need to install Data Acquisition Toolbox Support Package for National Instruments NI-DAQmx Devices.

[Ali Zolfagharian]

Thanks for your response. The daq is registered since I received 'mwnidaq.dll' successfully registered. Yet I can find the myDAQ ID in Simulink block!