Why do I receive errors when I try to create a digital I/O object with an NI PCI-6602 digital I/O board?

I am using a National Instruments PCI-6602 digital I/O board with NIDAQ version 6.9.1 and MATLAB 6.0 (R12) with the Data Acquisition Toolbox 2.0 (R12).

I receive the following errors:

 dio=digitalio('nidaq',1);

ERROR: ??? Error using ==> digitalio/digitalio
Error using ==> digitalio/digitalio
NI-DAQ: The specified attribute is not relevant.

Answer 1

[MathWorks Support Team]

NI Digital IO boards were not supported with Data Acquisition Toolbox 2.0 (R12), but these are supported as of Data Acquisition Toolbox 2.1 (R12.1).

A list of supported IO boards can be found here:

https://www.mathworks.com/products/data-acquisition.html

Click on "Supported Hardware"