unable to run this program continous loop
i have developed a program to postion probe drive using stepper motor. in this program m calculating pulses required to given to stepper motor and then using daq m generating the pulses, but i am not...
View ArticleFPGA starting from RT problem?
Hello all, I need help regarding my RT and FPGA VI, here i am attaching both VIs but the problem is that when i start RT VI with the help of invoke methods(see RT VI) my DI/O module NI9401 outputs all...
View Articledigital waveform editor sample size limit?
Hi, Can anybody please tell me the sample size limit of the Digital Waveform Editor? Thanks! Jing
View ArticleNI Digital In Module with High Impedance input
Hi ,Do NI have a Digital In module with High Impedance (390K) or moreInput Voltage 0-50V Like dSpace DS4004 digital Input Line I find only 4mA input current , it is to high for the ECU application....
View ArticleUsing NI cRIO-9075 serial port
Hi, Is it possible to send out data with the serial port on the cRIO 9075. And if this is possible, how do i do this from a labview environment?I thought this port was a RS232 port? Is it possible to...
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slow mydaq
Hi, Have been trying to create some logic for controlling a conveyor-model with help of LabVIEW and 3 myDAQ's, instead of the usual PLC-setup. We haven't come further than a few functions, then...
View ArticleUsing CAN-bus on sbRIO-9626
Hi, I'm very new to Labview, and now I'm trying to set up my sbRIO-9626 for testing and learning.I want to use the CAN-bus, but when I add the sbRIO to my project I cannot find the CAN-folder that I...
View ArticlePCIe-6537 Input Capacitance
Hi, I have an application that is very sensitive to capacitance and wondered if anyone knows what the input capacitance of the PCIe-6537 is? Thanks Nick
View Article6556 - Eliminating Round Trip Delay
Howdy, I'm working on eliminating round trip delay following the approach listed in the last paragraph here: http://zone.ni.com/reference/en-XX/help/370520K-01/hsdio/peliminating_rtd/. I've been able...
View Article6556 - Hardware Compare (HWC) in C#
Howdy, I'm trying to implement hardware compare in C# and I can't seem to figure out the way to do it. In this link: http://zone.ni.com/reference/en-XX/help/370520K-01/hsdio/hwc_in_hw/ it says to use...
View Articlecustom pulse signal 9401
Hi,I am using NI 9401 and I would like to generate custom pulse signal which is generated in the loop. At the beginning the user determines the pulse sequence e.g. 30 ms LOW, 20ms HIGH, 15 ms LOW, 25...
View ArticleHow to pause acquisition, wait for software event, and then resume
I am working on an application that is using the NI PCIe-6361 and C# to move a sensor (via analog outputs) and make readings at several points (via an analog input) with the final result being a...
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the digital output drop to 0
Hi,i have this circuit to control the direction of brushless dc motor to remove the brake the brake should connected to Black and this happen after i give D0 and D3 high and this one work fine to move...
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NI USB6008 and ULN2003A relay driver
Hello, I know there are a few threads on this subject already, but I wanted to ask some questions regarding how to drive a solid state relay using my NI USB6008 and a ULN2003A. I am a student, but do...
View Articlerise time problem with NI 9401 digital input
An NI 9401 was being used to log 0 to 5 volt frequency pulses from a flow meter that produces a square wave signal by means of an open collector output and a 2.2k resistor connected to a 5 volt source....
View Articlecontinuous write no longer works after upgrade
Hello, After upgrading a computer motherboard, OS (XP to Win7), and NIDAQmx (9.40 to 9.80) simultaneously the Labview 2011 32-bit vi we use to run our lab bus control system no longer works (the two...
View ArticleFalse 100ms switching pulse NI9401 outputs?
Hi everyone, I am facing a very serious problem in my LabVIEW FPGA project, I am using the NI9401 DIO module and in a simple program in FPGA I provide all 8 channels FALSE in a loop, but when I access...
View ArticleCommon moder error NI TB-9214
Hi all, I'm used NI 9214 to measure thermocouple reading which connected using NI TB-9214. When I connect thermocouple and then taking a measurement for each channel (connect one by one for the entire...
View ArticleHSDIO 6556: How to measure the time period between 2 accepted strobe triggers ?
Hi, I am using HSDIO6556, configured as: "niHSDIOProperties.DigitalEdgeStartTriggerEdge RisingEdge" & "ConfigureSampleClock: Strobestr 1000000" . I am expecting trigger signals to the STROBE pin at...
View ArticlePCIe-7841R Frequency
Hello,I'm looking to purchase the NI board PCIe-7841R and It is specified that its frequency is 40MHz.this means that it contains an oscillator working at 40MHz?Also, Can I connect a digital IO to a...
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