My code looks normal as it should, but when executing, it does not do the job!
Dear all, Can anyone please help me with my problem? I wrote a code for a Keithley 2200 DC power supplies. In one of the first steps of the program, current and voltage are measured, then it goes to...
View ArticleCourier Package Tracker
Hello, I wish to construct a VI in LabVIEW which tracks packages sent by a global courier (FedEx) and then reports back the latest status of the shipment. Unfortunately after entering the shipment...
View Articlefpga sequence structure timing problem
Hi, I am using a sequence structure in a VI on the FPGA of a cRIO-9073. The time each sequence is active is determined the rpm set by the user. In theory each sequence should take the same amount of...
View ArticleConvert cursor recording VI for signal express
Hi my name is Julian and I am a Neurologist from Berlin, Germany. I am currently working on an experiment, where we record brain oscillations directly from electrodes that are implanted in patients...
View ArticleLabVIEW: Identification Query Failed
Hi All I am new to LabVIEW and the whole instrument interfacing topic.First, I am trying to connect my HP8110A Pulse Generator to my computer using GPIB/USB interface (Agilent 82357B), and I have...
View Articleread hex from eprom and compare to burn file
I need to read hex files from programmed eprom ic's at different addresses and compare their outputs to a burn file to make sure they were programmed correctly. I do not yet know what format the burn...
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TCP/IP done installer not working.
I want to Ethernet Modbus PLC control method. In addition I have done the program works. Exe installer to take this program after making tray, this program does not work on another computer. So I can...
View Articleusb-485/4 loses communication, ports reassigned
I am running some devices using a USB-485/4 adapter. The program (Labview 2012, Windows 7) reads and/or writes the devices once per second. On two occasiions, the communication seems to stop; the...
View ArticleFixed width spreadsheet string to array
I have to read a file that is in a format with a fixed width per column, and an unknown number of columns. Is there a simple way to convert this in to an array - basically a "Spreadsheet string to...
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How can I prevent the text in non-resizable contexts from being cut off?
I have not changed the Application, System, or Dialog fonts from their defaults. This is the result: Related: http://forums.ni.com/t5/LabVIEW/text-in-non-resizable-windows-is-cut-off/td-p/92300
View Articlephysical channels missing in project
One of my coworkers is running into an odd behavior that he feels has changed overnight. When he creates a new vi in the project environment (it can be a brand new project/vi) and puts down a "DAQMx...
View ArticleWhen to call DSDisposeHandle when you have a DLL function acting as a...
Hi I have a DLL function acting as a dynamic data source within a LabVIEW application (see attachment) - I am using DSNewHandle to dynamically allocate 2D array handle storage via the LV memory manager...
View ArticleVI Example does not run well in my MAC nor in the virtual machine using WIN7
Hi, I download a thermocouple example from the website. However, it does not run well on my machine. I first tried it in the vitural machine (VM) using Win7. The VI actually runs well but the format is...
View ArticleLabVIEW 2013 | Touch Panel Module | Windows CE v7.0
Hi, I'm trying to connect to a third party touch panel. The OS is Windows CE 7.0. LabVIEW 2013 officially supports only Windows Embedded Standard but it only the executable behaviour that could be...
View ArticleCreate Callback VI for IMAQdx Event -> Broken Wire
My application is using IMAQdx to communicate with a Basler camera. When my camera is triggered with a digital trigger, it sends out an event when exposre finishes. I can use this event to know when to...
View ArticleSending Byte Array to Serial Port
Hi, I find myself running into a slight porblem. I have an array of bytes which are in hexadecimal and i need to be able to write them to the serial port so that a stepper motor can be controlled. I...
View ArticleFPGA @ NI cRIO 9074 - working period
Hello all! I'm using cRIO 9074 and its FPGA for data acquisition of a DC/DC converter. Since switching frequency of the converter is 30 kHz (~ 33.33 us), I need a microsecond domain. Because of that I...
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about 7 segment led displays A few questions
Looking for a little information about 7 segment displays, I found 2 diferent ways to conect it:And:As I understand, the A circuit is the right one, but I seen a lot of B. Mi reasoning:Is equivalent to...
View Articlehow can i get more decimal point.
when i got fetch waveform data from oscilloscope(model TDS5104), i want more decimal point.for example, oscilloscope output a point which print is 1.5214mV , but i fetch the point which is 1.52 by...
View Articlecontroling wavefrom graphs and instrument display.
Hello, I'm tring to control an old Optical Spectrum Analyzer (OSA) using VISA. I manage to read and write and present the date - but not to see the OSA display screen! I will explain: The OSA sweep...
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