Plugging or unplugging a Data Translation USB module during a MATLAB 32-bit session.
(Changing devices while in a MATLAB session)
The DAQ Adaptor for MATLAB (dtol.dll) will identify any Data Translation USB module that is connected to the host system only at the time MATLAB is started. This is behavior within MATLAB. Therefore, we do not recommend connecting or disconnecting a Data Translation USB module during a MATLAB 32-bit session. You will have to restart MATLAB in order to get the new hardware to take effect, since MATLAB does not release the resources once it allocates them for the device.