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Showing results for tags 'daqmx'.
Found 16 results
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Hello there! I am using a PCI-6110 DAQ and the purpose is to synchronize a DO with some AO.something like this: Now, im using AO/StartTrigger to trigger a DO,however,this works fine on PXIe-6341(another card for test),but unable to work on PCI-6110 there is an error -2000...
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I have a PXIe-7975R(FlexRIO FPGA with 5732 digitizer)and a PXIe-6341(DAQ) both installed in a PXIe-1073 chassis(you can check in screenshot below) and I want to synchronize there two device. my goal :The DAQ will output some control signal and the FPGA will acquire some other signal and...
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Hi all. After mounth of continuosly running with zero problem, now I'm getting the error "-200557 Specified property cannot be set while the task is running. Set the property prior to starting the task, or stop the task propr to setting the property". First I got the error on my program (b...
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Hello respected members I am working on a battery charging and discharging project and i use a Matlab\Simulink based dll file in my VI and its run without error with NI PXIe 8840 device ans PXIe-6368 DAQ card . It works according to the requirements and the outputs are same as Matlab simulatio...
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Hello LAVA community, I use a USB 6215. With two TTL output signals, two different colored lasers are to be triggered. TTL 1 activates a blue laser. TTL 2 activates a green laser. This external device also outputs 2 analog signals that I can capture with the USB 6215. While the lasers... -
I have a requirement that I thought would be SIMPLE, but can't get it to work. I have a 9205 card in a little 9174 cDAQ USB chassis. My *intended* behavior is to wait (block) at the DAQmx Trigger/Start Analog Edge on, say channel ai1, until I get a falling edge thru, say, -0.050V. So I have a...
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Dear All, I'm new to this forum and I'm really glad I became a member. I am currently in the phase of designing a simple program which can control all the DAQmx channels using a configuration file (.ini) which is capable of change voltage range during mid-simulation. At the moment m...
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Hello all, My question is: what is your preferred non-volatile way of storing daqmx task configurations? Backstory: For a long time I've used ini files to maintain task configurations between executions of a program. This has worked for primarily static DAQmx configurations but I'm lookin...
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Hello, I'm using the 9229 and borrowed a community example to log 4 voltage inputs to TDMS. I need to output RMS voltage on channels 1&2 and the wavform on channels 3&4. Essentially what I've done is averaged channels 3&4 using the same # of samples that the RMS is averaged, that way I'm a...
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Lets pretend I wanted to simulate a solar panel using a cDAQ, a programmable power supply and a light sensor. Id have to measure the voltage from the light sensor and the PSUs current, use those values to find the respective operating point on my light/voltage/current-curve and update the PSUs setti... -
I am trying to implement a simple DAQ Watchdog with single digital output but cannot find any logical way to reset the Watchdog timeout signal. One of obvious solutions is invoking DAQmx Reset Device.vi. Unfortunately, it does not work. The Watchdog goes to timeout state but the physical output sign...
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Hello, I have created a vi that controls multiple writes (individually) by a switch. I have it so one individual switch controls one individual write (And is linked to individual clear, stop, error daqmx blocks). I do not think this is efficient as it takes about 4-6 seconds for the switch to ac...
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Hello, I've been struggling with this problem for months now... I want to use a cDAQ9171+NI-9234 with an Advantech PC (AIMB-580). I have 3 computers like this and all with the same problem. I plug the USB cDAQ-9171, Windows detect the device and loads the proper driver (cDAQ-9171), it is display...
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This one caused me a day of grief. Turns out an error in the start up logic of one of my applications would request a duty cycle of NaN to a counter output I'm using for pulse width modulation. The problem is the NaN request goes through without returning an error. But the next request to update th...
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Hi LAVA, I need some help. I have a motor that moves a tray. During the movement of the tray, 2 switches will change value. I want to read out the counter value / motor position when the signal of the switches changes. (rising and falling edges) At this moment the only thing I can think off is...
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I would like to programmatically change the alias of a couple DAQmx devices to make a program more versatile. I have found an example at ni.com that will do this; however, it is in version 8.6 and I have 8.5. Could someone please visit that page and save a screenshot? https://decibel.ni.c.../docs...
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