PCIe 6341 is slow with Matlab command 'inputSingleScan'
Hi, I have a Multifunction PCIe 6341 DAQ on a 64 bit machine with 64 bit Matlab 2014a. One of the DAQ Toolbox command is called the 'inputSingleScan', this command however is significantly slower than...
View ArticlePCIe-6341 Matlab compatibility? Optimized for Matlab?
Matlab says it has support for NI PCIe DAQ, but NI didn't list Matlab as one of the compatible software for its products. So i like to know if NI optimized its product to be used with Matlab. I am...
View ArticleSynchronization of DAQ assistant and serial.
Hello there,I am trying to measure a signal using the DAQ assistant, aswell as a signal using a multimeter and a rs232 cable. The problem is: if I measure just the signal with the DAQ assistant it goes...
View ArticleNIDAQmx 64 bit library for AnsiC not found
Hi everyone, I use a niDAQmx solution in a custom MSVC application. Everything is fine in case ofa win32 build. However, in the x64 build, I can not find the import library. I found a discussion with a...
View ArticlecDAQ vs. cRIO
Hello all, I am trying to determine whether cDAQ or cRIO would be better to measure strain gauge, temperature (thermocouple), and accelerometer data from devices placed on a Formula SAE vehicle....
View Articleerror in multiple channel data generation using NI 9263
hello there i wanted to generate pwm signal using NI 9263 voltage output module. it works properly when it is generating only one signal but i want to generate 4 signal...
View ArticleBatch Data Logging
I'm looking to record data from up to 100 thermocouples and batch log each one to an independent file. I need to be able to live trend them in groups. Sample rate is quite low, probably as low as 10...
View ArticleMS KB2998527 update impacting USB 6366
I updated my Win7 today (9/25/2014) with MS latest update KB2998527 that's supposed to just be a Russian timezone update. After rebooting, the device was detected by Windows but when NIMAX is run, it...
View ArticleFiring angle control of SCR using DAQ
Guys can i control firing angle of SCR using DAQ card and Labview?? If yes then how am i supposed to do the connection and how can i protect my DC (Low Voltage) DAQ card from High AC voltage so that it...
View ArticleNot able to output all samples provided to AO 'Daqmx Base Write' box
I'm trying to simultaneously start two processes AI and AO. AO is what I'm having issues with. It should output more samples that buffer holds (150000 in my example). That's why I have 'Write' block in...
View Articlecounting edges from a photon counting pmt
Hi, I am trying to use my DAQ (PCI 6115) to count photon signals from a photon counting PMT. What I have set up currently is 1. creating a gate pulse with a width of integration time with counter 1...
View ArticleAnalog capture with multiple digital trigger
We are using NI DAQ USB-6341 to achieve re-triggerable capture of 10 analog way, each with its own digital trigger input. Is it possible to have multiple triggered acquisition running at the same time...
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Error with Simulink DAQ analog output
Hello, I have trouble outputting data with a NI USB 6211 device using the Analog Output block from the Data Acquisition Toolbox on Simulink. I have been able to acquire signals with the Analog Input...
View ArticlePXI 1042 chassis, controller unknown in NIMAX
Hi, I have a PXI 1042 chassis, with an NI PXI-8360 controller, however, when I open NIMAX, the controller appears as unknown (see attached image). I am using NIDAQmx driver version 9.9.0f0 on a Windows...
View Article6008 Analog Input termination voltage
I am using the NI USB-6008 Analog Inputs. The spec says they have an input impedance of 144k-ohms. But it does not say what the termination voltage is. If you leave the AI's disconnected and measure...
View ArticleMeasuring short (faster than the clock) pulse width fails with NI DAQ USB 6363
Hello, I'm using NI DAQ USB 6363 with C++/Matlab.I'm trying to do a pulse width measurement with a known finite sample size (on the order of 2000).The problem is that some of these pulses might be very...
View ArticleNI SCB-68A "A GND" and "D GND"
Hello, the NI SCB-68A connector has several Analog Ground "A GND" and "D GND".All Analog Grund are not connected to other Analog Ground, means when i tryto measure from one AGND to another AGND. Does...
View Articlecompact-DAQ NI 9178 and USB3
Hi, I'm using a system based on a cDAQ 9178 (with 2 NI 9223 + 1 NI 9401) with a sampling frequency at 1MHz (the maximum rate).Using USB3 ports, my application was not able to read the samples on time :...
View ArticleExternal reference for analog output on USB-6259
Hi,According to the manual the 6259 device can use an external reference for analog output.My problem is that I can't find the setting to select it. The NI-DAQmx help says: "The external reference...
View ArticleUSB DAQ: Reading Data, Analyze, Writing analyzed data - not working
I have Labview 2011 32-bit (no toolkits), on Windows 7. Hardware: NI USB-6251 DAQ board. I'm using analog in, analog out. I am trying to collect data (read), analzye it (such as integrate or...
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