Is there a means to detect when a cDAQ 9139 switches from using the primary...
The manual states the power LED will be green if the cDAQ is using the primary power supply V1 and yellow if it's using the secondary power supply V2. Is there any way to detect this programmatically...
View Articlehow to set an acquisition time interval using DAQmx
I'm using a 6123 DAQ to acquire and store a voltage signal. I'm trying to figure out how I can reduce the time interval of the acquired data, instead of saving 2ms of data I only want to save the...
View ArticleCDAQ Sine Wave Analysis
Hi I have a CDAQ9178, with a 9229 4ch sigma delta analgoue card. I have two sine waves around 5V pk to pk at a frequency of 10hz. each waveform varies in cycle width and cycle ampltiude. I am...
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Can we use the ADC on sbRIO9612 directly or we have to use any other data acquisition device like NI922x series with it?If we need other data acquisition device with it then why?
View Article[ 0xBFF69018] Insufficient transfer engine resources
Hi, I encountered the "Insufficient transfer engine resources" problem. There are several peeople who suffered from this problem but all the solutions did not work for me. First, I already used the...
View ArticleGlobal variable reliability
Hello, I am using a Global variable to transfer data from one VI to other. In one VI, I am writing to the global variable contineously.And in the second VI, I am reading this global variable and...
View Articlemultiple ADC reads with digital output switching (external MUX)
First, I am using a NI USB-6363 So on an external trigger, the system I am looking to test samples 4 voltages that come out through a MUX. I have access only to the output of the MUX and want to...
View ArticleIncorrect Temperature measurement using NI 9211
Hello, I am using NI 9211 Thermocouple module to measure the temperature in a Temperature Chamber (TC). TC has a inbuilt temperatute indicator.For temp.< 40°C thermocouple (K type) shows good...
View ArticleReading values of digital lines used to create change detection event
I use the vi given in the link as the basis of my application: https://decibel.ni.com/content/docs/DOC-11413 Different than the example above, I want to detect the rising edge of multiple digital lines...
View ArticleLinux USB-6218 PWR/ACT LED off
Hi everyone, I recently bought a multifunction DAQ USB-6218 and installed all the software for it (namely, nidaqmxbase and nikal). When I connect the device to my computer, I don't see the...
View ArticleUpdate buffer in a Retriggerable task
I am wondering if anyone know how to update the buffer for a retriggerable AO task.I want to change the the AO buffer before the next trigger. And then I can get the new wavefrom for the next trigger....
View ArticleDAQmxReadAnalogF64 Read Latency with USB-6212
I am currently using the USB-6212 for data collection. I am experiencing ~ 30msec read latency when I call DAQmxReadAnalogF64. I am collecting ~ 2.6 msec of data (65 samples * 25e3Hz sample rate). Is...
View ArticleRetriggable analog trigger for AI on USB-6152 mass terminal
Hi, I whant to configure a retriggable analog trigger for AI on USB-6152 mass terminal. I modify the demo programme from NI named ANSI C Example program: Retriggerable_AI_Using_Retriggerable_Counter.c...
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Beat occurs while analog voltage measurement
I configured the NI 9205 module to analog voltage measurement in RSE mode. The sample rate is set to maximum, 125.000 samples per channel. Now I put a sine-waveform with 60KHz to the analog input...
View ArticlePCI 6259 - Trigger AI voltage measurment when P0.31 changes from low to high
I am writing a pattern using the digital outputs (P0.8-P0.31) and want to trigger a voltage reading on AI16 when P0.31 changes from low to high. Any ideas on how to accomplish this?
View ArticleHow to configure NI-STC3 to trigger on logical condition of multiple digital...
I have an application where I need to AND two digital inputs. When both inputs are high, it triggers an analog input channel to sample the signal. The number of samples and timing must be...
View ArticleUsing Digital-In to trigger AI capture
I am using an M series (6229) capture a Digital Input (not a PFI) and an Analog Input. I would like to have the Analog Input triggered on the falling edge of the Digital Input. I would also like to...
View ArticleNi 6008 USB DAQ design practice
Hello,I have a couple of question I would like to present. I need a sort of hint on how to best perform a contiuous acquisition cycle using timed FSM.I am going to upload my VI (it's conceptual, not a...
View ArticleDAQmx Base for Mac 64 bit (3.8?) -- when will it come?
Dear Community: developing with DAQmx Base on Mac OS is fine, in principle. However, it becomes more and more of a pain that the compiler has to work in a 32 bit architecture -- this precludes lots of...
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