Digital IO with DAQCard 1200

Hi!
Does someone know the maximum datarate for digital I/O with DAQCard 1200 (PC-Card) ?
Is it similar to the 1MHz limit on the AT-Bus?
Thank you for your help.

Edmund,
The digital lines on the DAQCard-1200 do not have hardware timing associated with them, so the maximum read/write rate will depend on software timing.
This means that the read/write will depend on how fast your code can execute. One thing to remember is that as other programs call for CPU time you application code will slow down and if nothing else is using CPU time your application will run faster up to a point.
If you need hardware timed digital I/O I would recommend using a DAQCard-6533.

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DAQCard 1200: How can I send two TTL singals on separate channels with adjustable delay shortly after (typically a few milliseconds) external triggering?

Hi, this is probably a simple question, but I have never used the digital and timing part of any DAQboard before... I wish to use an old Power Macintosh 7200 with a DAQCard 1200 for timing and synchronizing external events . The scenario is as follows; an external device (in my case; a CCD camera) sends a trigger signal (TTL, 600 ns). I want this signal to trigger the DAQCard, whereafter I want the DAQCard to send two TTL pulses (20 microsecond duration) from two separate channels (one pulse from each channel). The first pulse must be sent within a few milliseconds after the trigger is recieved. Th
en I wish to be able to control the delay from the first pulse is sent and to the second pulse. This delay should preferably be adjustable from a few microseconds and up to at least 20 milliseconds. How can I achieve that kind of operation? (I need a few tips to get started.. like for instance: should I connect the external trigger signal to the EXTTRIG pin or to the gate pin of one of the counters? Do I have to interconnect the counters in some way? Do I have to invert the OUT signals? etc..)Thanks for your help in advance.
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I have not personally used the DAQCard 1200, but if it is similar to the E-series devices, you route the trigger signal to the gates of both counters.
In your code, use the Data Acquisition->Counter->Generate Delayed Pulse VI twice, once for each counter. You can then set an input on that VI to select to trigger on the gate, and set the delay and pulse width of the pulse. Since both will start from the same trigger, you can delay either pulse as long as you wish, from microsecond to seconds, making the second pulse follow the first.
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I want to use an old Daqcard 1200 with Labview 8.5. Where is the driver?

I'm using Labview 8.5. I have an old Daqcard 1200 and there doesn't seem to be a driver for it. I downloaded an older version of NI-DAQ that claimed to have support for that card, but when I tried to install it wanted me to uninstall my newer version. Is there a way to use this card without going back to an ancient version of NI-DAQ?

Unless there is some specific technical problem with interfacing to the old equipment, I don't think it is unreasonable at all to expect them to include drivers for legacy equipment. It would cost them very little to throw a few extra drivers into a package that encompasses their whole product line anyway, other than the missed opportunity costs associated with not selling new equipment in a few rare cases (which is probably what this is really about) .
NI will probably explain better than i do. in general, they changed the way the DAQ driver operates, introducing also DAQmx. this is incompatible with the old way of functionning. for you, it forces you to choose the driver version to use.
But anyway, it's not worth it for me to set up a machine just to run this thing. I'm just going to trash it. Thanks for the help.
why dont you sell it over ebay? there are quite a bit that would love using it, for cheap enough. for example, this was one of the latest cards exhibiting 3 counters, operating differently than the modern version. it has its usefullness...Also, if this is the only one card installed in the computer, you wont miss anything with the new drivers
... And here's where I keep assorted lengths of wires...

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Hello!
I am relatively new to these things, so sorry for any ignorance
I have a self designed servo-hydraulic structural test rig with a load cell and displacement sensor on the hydraulic cylinder.
Signals from both these sensors are inputted via a CB 50LP connector board and then a DAQCard 1200 to a PC using a Labview 6i program, through pins 1 and 2.
I also have an in-house made strain gauge signal box that inputs to pins 3, 4, 5 & 6.
The DAQ card is using NRSE.
Now, this all worked fine for years, but now the in-house strain gauge board is kaput, so I am trying to connect up a SC-2043-SG that we have instead of the kaput inhouse board and the CB 50LP.
I have read the DAQ Card and SC-2043-SG manuals, and pretty much understand what I have to do, but....
Page 3.6 in the manual says, "Pins 1-8: Analog Input Channels 0 through 7—These pins carry the conditioned strain gauge bridge signals (referenced to AISENSE) to the DAQ board. They are not routed to screw terminals."
So my problem is, how can I connect the first two analogue channels (pins 1 & 2) to my load cell and displacement transducer, whilst using pins 3 to 8 for the strain gauges, with the SC-2043-SG?
I though I could just cut the 1 & 2 wires of the ribbon connector from the DAQ card to the SC-2043-SG and connect them directly to the sensors (and then not use strain gauge channels 1 & 2 on the SC-2043-SG), but am not sure if this would work / have any unwanted implications.
Would this be OK, or is there an easier, neater way?
Thanks
Bife
Solved!
Go to Solution.

Hi Bife,
The SC-2043 is designed for strain gauge only, so you can't connect basic voltage signals.
It is true that you can cut the cable in order to provide your own signals to the DAQ card.
(not recommended, but it should work)
You can also contact us so that we can suggest a better hardware (maybe the SC-2345 that can do multiple types of signal conditionning in a single enclosure).
Best regards,
Thomas B. | CLAD
National Instruments France
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I'm attempting to connect a Windows XP equipped laptop running LabView 8.0 with a DAQCard-1200. I originally gathered data from an experiment from an older computer running LabView 6, and so I copied the vi over to the new system. Originally I was missing some subVIs from the DAQ folder. Now I've copied files from the older version that it was missing (AI acquire waveforms, 1easyio.lbb, files of that nature) into the new folder DAQmx. These files create the error message "... is not executable". I've read some stuff of the discussion boards that it seems to me that DAQ isn't the same as DAQmx, but I'm not sure why. As soon as I fix this problem, I'm also having difficulty installing the new 6.9.3 driver for the DAQCard-1200 because theres a newer version installed. I found the discussion board topic about how to uninstall newer versions through the control panel and I did that, but that's actually when the problems started happening with non-executable vi's.
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After installing the correct version of the driver, you can try opening and running your VI. There may be some minor modifications required to get the application to run in LabVIEW 8.0. Do not copy DAQ or DAQmx VIs between computers. It is likely that this can cause difficulty in communicating with your device due to incompatibilities (i.e a newer VI may not be compatable with your DAQCard-1200). If you find that you are still unable to run your VI after following the above suggestions, post back with the problem you are having for further guidance. If possible, it would be recommended to upgrade your hardware and begin working with DAQmx to ensure the best possible support with your application.
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Digital Output With Timer.vi ‏16 KB

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http://zone.ni.com/devzone/cda/tut/p/id/3749
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Digital IO with DAQCard 1200

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