Remove counter output route
I have a PXI-6251 card. To trigger simultaneous analog and digital output, I use one of the counters. Since I use all digital lines, I would like to not have the counter output on any of the lines.Is...
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Missing Tooth Detection MyDAQ Counter
I'm trying to use the MyDAQ to detect a trigger wheel missing tooth using the Counter period function but have thus far had spotty results. My input signal looks like this:Which is the output from a...
View ArticlePCI-6133 always returns huge constant number of counts
Hi,I am trying to use a PCI-6133 with a BNC-2110 adapter to counting leading edges of pulses. Please excuse my high degree of ignorance of how to do this. Anyway, I connected up my TTL input signal...
View ArticleCounter that triggers off the rising and falling clock edges?
I've got an interesting problem of a device that flips its state between high/low everytime an event happens (so two events make one complete cycle). I'd like to clock an E series synchronously with...
View ArticleHow do I modify my simple state machine into a counter?
Part 2 (50 points): Modify the appropriate files in PE2SimpleState.lvproj to create a counter. The counter should:(5 points) Be automatically initialized to zero.(5 points) Be able to count the number...
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DO wave in step-ncreased frequency, possible?
Using cDAQ 9174 + NI 9402 DIO,To generate DO wave in gap-step-up mode, Is it possible and how to set that step-increasment?for example : one pulse-width + step-changing gap time between pulses
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How to synchronize trigger the start and stop of 4 timer/counter(with...
Hi, every Sir : I am using cDAQ 9174 + NI 9402 to generate some relate triggers for instruments controls.To generate the 4 DO wave with 4 counters, like this: For the delay between channels, should be...
View Articleusing asynchronous timer for data flow control
Hi all, I am using system sleep to control the data flow (some digital lines and analog output). The pseudo code is something like this Sleep(150); // the following sections are exectuted in parallel...
View ArticlePlease help with C code to synchronize counter output to analog input
Hi All, I am using NI DAQ USB-6353 with text-based C code to control it. I would like to send a continuous pulse train from the DAQ to pulse a power supply, which then activates an electron beam...
View Articlehow can I specify a delay generate a counter pulse?
Hi all, I have a question about using the counter to generate the pulse train. I don't have how to program it but I try the test panel in the MAX and I see it generates the pulse train at some rate...
View Articleexternal timer using ni usb 6251 code with labview
i need help pleas how to write external timer using ni usb 6251 code with labview to measurment pulse width about 5 msec
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Difference between CI Freq and CI Pulse Freq
I'm using a NI 9401 to collect counter data for a optical tachometer and a flow meter but I noticed there was a specific subsection of DAQmx counter channels for Pulse measurement. I think I...
View ArticlePlease help.
Hello, I am fairly new to multisims and electrical engineering in general so bear with me.I am trying to create a four-bit asynchronous counter that counts from 1 to 14.I know how to create the normal...
View Articlewhere is RTSI trigger lines in 6711 card
Hi there, I have a PCI-6711 card. The manual said it supports the RTSI trigger line to connect the external clock as the timing source. I try to find the pin associate with the RTSI in the layout for...
View Articleshould external clock be pulse or sinusodial wave?
Hi there, I am going to connect an external clock source to 6711 card. But I wonder if the source should be pulse trains (squre wave) or could be sinusodial wave. When we say the frequency of the...
View Articleoptical encoder
I connect an optical encoder (angular) to a counter pinout of digital io part of the card. I get correct positioning from 10 degrees and above. I get wrong values if i tried to move from 1 to 10...
View Articlecounter trigger
Hi All, i use ni-6111 (Nidaqmx; C++, Delphi,VB), start the measurment for one channel ai0 over a trigger signal from counter0, it works; but want to start counter1 with same trigger signal, which...
View Articleabout set clock rate and actual clock rate
Hi there, I am connecting the PFI pin to clock genrator which output clock signal at rate 1MHz (constant). But in the DAQmx Timing (Sample Clock).vi, I can set the sampling rate to anything other then...
View Articlesynchronize continuously Analog Read with trigger C Code
Hello, I have a problem I have NI USB-6251.I have to synchronize continuously Analog Read with trigger.My code working correctly only with finite mode, but in continuously mode signal not...
View ArticlePeriodically timed pulse counting
Hi all, For my research project I'm working on a tabletop fusion device. The main goal is to investigate the neutron production. At the moment I'm automising as much as possible. I have 3 analog input...
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