Use multiple counters on PCI 6601
Hello, my name is Igor and i'm an young VB6 programmer. I'm an electronic engineer but i never used this language to my study. My problem is "simple", i need to measure 3 PWM with an PCI 6601, this is...
View ArticleHow can I set auto trigger : off in AG5313xA ?
Dear All I try set config "Level.vi" at trigger level type : volt and trigger level : 0. But I still found auto trigger : ON in AG5313xA. Best regard,Sermsak
View ArticleHow do I get a timestamp for each daq counter measurement?
Hello, I am currently using DAQmx to read a PWM signal and calculate the pulse width using the implicit timer. Is it possible to also get the timestamp of each pulse width measurement? I have been able...
View ArticleTachometer
I am new at this but do have some knowledge on the subject. I am building a digital tachometer for a college project and have picked the 555 timer and icm 7217 chip.. i do not want to use a...
View ArticlePCI-6602 routing limitation
I am trying to use 4 counters to generate 4 signals, synchronized with external trigger (PFI 38). If I use counters 0 to 3, it fails to build a route connecting counter 0 internal output with start...
View ArticleCounter output cannot update duty cycle...?
I'm encountering (pun not intended) a strange issue with my counter generation. I am currently using this example (https://decibel.ni.com/content/docs/DOC-8306) to generate a PWM signal that can change...
View Article6602 Buffer size
Respected SIr,I am using 6602 timer/counter card for time stamping random events having count rate of 10,000 cps. For this purpose I am using NI test program "Measure Buffered Period (NI-TIO).vi"....
View ArticleLarge frequency counter method reading data at higher rate
Iam using ni 6341 USB device and using Large frequency counter method to measure frequency from 0hz to 10khz which is varying at 200ms but iam not able to get the data perfectly in the chart as well as...
View ArticleTrouble setting up an encoder input and PWM output tasks on CompactDAQ
I am using a cDAQ-9174 chassis with a 9474 and 9411 modules. I don't believe it matters but they are the old NI cRIO-XXXX modules that came with a test setup that was distributed to early adopters. I...
View Articleread no. of pulse count with fixed time interval
Hi,I am try to read no of pulse count ( Pulse period = 500ms, On time = 100msec and Off time = 400msec). Between pulses there is a fixed time interval of 2seconds. I am using NI USB DAQ 6341. Can...
View ArticleReadSingleSampleDouble
I'm trying to use a two edge separation counter, and I have it configured as such... CWCounter3Task = new Task(); CWCounter3FirstEdge = CITwoEdgeSeparationFirstEdge.Rising; CWCounter3SecondEdge =...
View ArticleCan I measure period with USB 6501?
Hi,I was told that I can use the one counter in the NI USB 6501 to measure period. So, I wrote this little VI, modeled after the VI I have that measures encoder period using the counters built into...
View ArticleNeed Help to estimate time for counting edges of analog square wave
Dear fellow labview users, I am building a DC magnetic motor and I have integrated a hall effect sensor to count the frequency of the motor. Due to the limited number of 'counter' channel in my USB...
View ArticleInput impedance of NI 6602 Card
Hi All, Why is the Input impedance of the PFI's are Finite? In the data sheet it is mentioned that input impedance is 25k-500k ohms. I have measured the impedance of the PFI channel using a...
View Articlespeedometer
helloI would like to measure a speed on a reedcontact. With arduino Uno. Is there a example how to show speed in a graph?thanks
View ArticleSynchronize on restart of task
I'll outline what I need to do and hopefully someone can tell me how to best tackle it. A code example would be best if possible. I have an application that will always be reading data on analog inputs...
View ArticleMesuring machine cycle time
I want to measure the cycle time of 10 plastic molding machines and view the results along with cycle counters on HMI on a PC.I can produce a 0v-5v pulse from the machine at the start of every...
View Article3 quadrature encoders on one 9411
I'm trying to read three quadrature encoders using a 9411 in a cDAQ. In the cDAQ is a 9437 reading a load cell.Sample rate is set to 1613 HZ, and the counters use the cDAQ/ai_clock .Reading one encoder...
View Article"loopback" counter output without wiring
I will be outputting a pulse on Trig0 line that resides on an AO card, based on that AO card's counter0. The problem I am having is that this AO card itself needs to trigger off this pulse. Is there...
View Articlehow to measure the rpm using NI 9411 and counters
How to calculate the rpm of a shaft using NI 9411 and counters?
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