Implement watch dog for USB-6251

Hi,

I am pretty new to NI DAQmx and USB 6251 so I might be asking a question that has a obvious answer here....(also if I should post this question somewhere else please let me know)

I am trying to implement a watch dog timer that will trigger a digital output (static or waveform) to a signal light

From the spec for USB 6251, I can see that it does not have a built in watch dog timer that I can use..

Therefore, is it possible to implement my own watch dog timer (hardware timer not software)using the hardware spec for this device??

I am programming using C# .NET 4.0 which i can see the methods for watch dog but cannot use due to hardware spec..

Maybe my best thing to do is buy a model that supports watchdog??

Thanks in advance,

Edward