6.1 examples only for 6120 and 6115 cards?

[shoneill]

I'm stumbling through some LV 6.1 examples for continuous DIO and have found some interesting VIs which could be very helpful, but they apparently only work with 6120 and 6115 E-Series cards.

Does anyone know why?  Can these examples not be used on other multifunction boards - MIO-16XE-10 for example (PCI-6030 E)?

Shane.

[Dennis_Knutson]

Shane,

The 6115 and 6120 are S-series boards and the digital I/O is hardware timed. The E series boards have software only timing for digital I/O.

[shoneill]

Thanks Dennis,

That's wierd though, because the examples are listed under the heading "E-Series", so I kinda thought they were for E-Series boards.

Oh well, this explaind it then.

Does this mean it's impossible to do regenerative Digital out (recurring waveform of around 5000 points) with an external clock on an E-Series board?

Shane.

[Dennis_Knutson]

Sorry, I don't think you can use any external clock for digital on the old e-series boards.

[shoneill]

Thanks Dennis,

Oh well, that kills that idea then.  Is it at least possible to set the frequency of the digital out update?  I can get around the "External" clock if I use a frequency output from the card itself.  This way, the timebase stays the same without the need tor "External".

Can I do buffered AO with an external clock?  This could be a work-around in a pinch...

Thanks for your help, and sorry for such questions,

Shane.

[Dennis_Knutson]

Shane,

You should be able to do buffered AO with an external clock and I think one of the shipping examples does this. You could also probably use the counter output for a pulse train but you would be limited to just the two counters. The digital I/O timing would be strictly up to how reliable is the timing of a while loop under windows and that that's not very reliable.

[shoneill]

Dennis,

To pick your brains on this one a bit more:

Am I right that a 6220 Low-cost M-series board would be good for this, accepting the 250kHz sampling rate of the analog in?

I suppose the hopes that there's a DAQ driver for LV 6.1 is pretty hopeless right?

Shane

[Dennis_Knutson]

Shane,

I think an M series board would work but there is no 6.1 LabVIEW driver for it. You might be able to get it to work by using the Call Library Function Node. I've seen some posts on this but I have no idea if anyone has had success with it. Sounds like you may have a valid reason for upgrading. I haven't had to buy a DAQ board in a while and only got to play around with an M series board but I really liked what I saw.

Dennis

[shoneill]

I like the idea of upgrading, see what my boss thinks.....

I don't like the idea of using the "Call Library Node" for a DAQ driver.  Somehow Icky.  I'd rather leave all that to NI.

As ever, many thanks for your help.

Shane.

[Dennis_Knutson]

No problem. Now if I could only find a good reason to convince my management to upgrade.