gated two edge counter -200452 error
Hello Forum, As I wrote earlier, I am trying to implement a two edge separation measurement that could be gated. In an updated version of an earlier program, I tried to use the...
View ArticleReading in MAX but not LabVIEW
Hello, I have a very difficult problem reading four counters from a NI 9401. In MAX they read just fine but in LabVIEW they read zero. I browsed the internet and the discussion boards and cannot find...
View Articleni 6008 wrong counts
I use a ni 6008 device, to count TTL-Signalls from a descrete particle counter.99% of the time, the ni 6008 counts are correct and the same as the particle counter, but sometimes I receive wrong counts...
View ArticleI need to use NI9481 as 4 channel counter with 2ms On time and 2ms Off time....
Default On Time is 10ms and Off time is 10 ms.
View ArticleAnalog triggered counter
Hello, I am attempting to use analog edge detection to increment a counter, which I will then read from at a regular interval. I keep hitting brick walls when trying to run/adapt the examples on NI's...
View ArticleError -200684 Duty Cycle not valid on any value
I'm using the LabWindows CVI DAQmx Library to write a counter frequency using DAQmxWriteCtrFreqIf it matters, im using LabWindows 2013 ds2 and DAQmx 9.7.5Im using a PCI-6602 simulated in MAX.I have a...
View ArticleError -200141 encountered while counting edges using a PCI 6251 device using...
Hi, I have a NI PCI-6251 device. I have created a counter input edge-count task. I receive the following error when I try to sample at 300,000Hz with an external clock: Error -200141 occurred at DAQ...
View ArticlePeriodically Extract Payload from CANBus Frames using cRIO in FPGA mode
Hi All, I am new to LabVIEW and NI products and I'm trying to accomplish the following (I expected this to be simple to do!): I have a bunch of CAN devices (let's say 12 of them) and I'd like to...
View ArticleConfigure a buffered counter in python
Hi, I'm trying to build an application in python that's very simple. The only thing he has to do is start counting the rising edges on a digital input channel. In the attached python script the...
View ArticleLarge Range of Frequencies using Two Counters Measurement Method on PXI 6229
Hi All, I was reviewing the documentation on NI's site regarding on setting up a task for taking a measurement: http://zone.ni.com/reference/en-XX/help/370471AE-01/daqmxcfunc/daqmxcreatecifreqchan/ I...
View ArticleNI DAQ card for SinCos encoder?
We have a heidenhain RON285 encoder which uses the 1Vpp signaliing for "infinite precision." Essentially it outputs two differential Sin/Cos signals and the phase angle between them allows you to get...
View ArticlePulse or two edge separation measurement with implicit timing in ticks: What...
When I do pulse measurement or two edge separation measurement, using implicit timing, DAQmx chooses (I believe) a suitable internal timebase for the measurement. My X series board (a 6320) e.g. has an...
View ArticleSignal Express wrong time file with NI9361 Dynamic Average Freq
I am having an interesting problem with recoding frequency measurements to a file with SignalExpress and an NI9361. I was able to find a workaround, but here's the issue: As in the attached...
View ArticleIs Task Done on edge counting task on USB-6008
I noticed that an edge counting task on the USB-6008 device will always return true when asked if it is done, even immediately after starting the task. This is of course not true for other devices. Is...
View ArticleSample C or CPP code for Continuous Pulse Train Generation on the PCIe 6612 card
Hello,We would like to generate a continuous pulse train from one of the counters of an NI PCIe 6612 card using C/C++ language, with the NIDAQmx interface.Our software needs to be able to continuously...
View Articlephoton time stamping error -201314
Hi, I'm making setup for fluorescence correlation spectroscopy (FCS). For photon detection, I'm using COUNTER-100C (LASER COMPONENT) as a photon counter, PCIe-6353 and BNC-2120.Now I'm building lavbiew...
View ArticleAcquiring analog voltage and Freq using producer/consumer architecture
HiWhen I acquire voltage and Freq data using PCI6221, I select a producer/consumer architecture with three loops,which are events loop,daq loop and error loop,I put the analog read VI and counter read...
View ArticleGenerating pulse packets on PCIe6612 (or PCI6602)
Hi, I'm trying to generate a high frequency pulse train that turns off when my gating line is down. The attached VI does just that, but there is a drift between the high frequency line and the gating...
View ArticleUsing PXIe 6612 to measure PXI 6528 channel pulsewidth - channel not available.
Hello everyone, I am using PXIe 6612 counter card to measure the pulse width of the signals on PXI 6528 DIO card. Both these cards are in the same PXI chasis (NI PXIe-1065). I could measure the pulse...
View Articlesync encoders with NI 9411 and 9423 in cDAQ 9178 chassis
Hello everyone,I have problem with synchronization of 4 inputs - 2x angular encoder, 1x frequency, 1x linear encoder, where angular encores are connect to NI9423 and frequency input together with...
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