This enhancement has been incorporated in Release 2007b (R2007b). For previous product releases, read below for any possible workarounds:
National Instruments PCI-660x / PXI-660x series devices are not supported with NI-DAQmx drivers by Data Acquisition Toolbox 2.9 (R2006b).
To work around this issue, you can add limited support for these devices by modifying the device configuration file. In Data Acquisition Toolbox 2.9 (R2006b) it is only possible to add support for the Digital Input/Output subsystems. We are investigating the possibility of adding support for the Counter/Timer subsystem in a future release.
Alternatively, you can use the NI-DAQ Traditional drivers available from National Instruments.
To add support for Digital Input/Output subsystems using NI-DAQmx drivers, perform these steps:
1. Quit MATLAB.
2. Find the following file:
$MATLABROOT\toolbox\daq\daq\private\mwnidaqmx.ini
(where $MATLABROOT is the MATLAB root installation directory obtained by issuing:
at the MATLAB Command Prompt.)
3. Make a copy of this file and rename it to mwnidaqmx.ini.old.
4. Open the file mwnidaqmx.ini in a text editor, and add the following lines at the end of the file:
[PCI-6601]
hasAnalogInput = false
hasAnalogOutput = false
hasDigitalIO = true
digitalPortSize = 32
digitalPortCap = 4
[PCI-6602]
hasAnalogInput = false
hasAnalogOutput = false
hasDigitalIO = true
digitalPortSize = 32
digitalPortCap = 4
[PXI-6602]
hasAnalogInput = false
hasAnalogOutput = false
hasDigitalIO = true
digitalPortSize = 32
digitalPortCap = 4
[PXI-6608]
hasAnalogInput = false
hasAnalogOutput = false
hasDigitalIO = true
digitalPortSize = 32
digitalPortCap = 4
5. Save the file mwnidaqmx.ini and restart MATLAB.