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ni 8431 output voltage
hi,I am using ni 8431 serial board for rs-485.when i login windows there is a constant output voltage on TX+ line.how can i disable the output voltage and activate it again after certain setup on my...
View ArticleStrange behavior for memory allocation with structures
I noticed a strange behavior when allocating memory with structures.The explanation is unfortunately a bit lengthy that's why it is in the attached Word document.I attach also a test Program which...
View ArticlecDAQ by CVI LabWindows
Dear All I´m trying to find information about cDAQ chassis controlled by CVI labwindows commands. We have a 4 channes AI (analog input) module connected to a cDAQ chasis USB to PC. Where can I find...
View ArticleStripChart Pause
Hi,I would like to pause the graph, but I can't stop it. I receive data via serial line RS232 can this be affected by this? When you press the "Pause" button scrollBar appears at the bottom, but the...
View ArticleError if code is inside a function
The following problem occurred inside a program I have written. I will try to explain it in a short version of the whole program: I have a control-Callback for a button where i wait for EVENT_COMMIT....
View Articlecan I use NI Device Driver 2019 with LabWindows2010
Hello,I am working on legacy software using LabWindows2010. I was given NILWCVI2010.exe to install. I am asking, can I use NI Device Driver 2019 with itI tried to download NI Device Driver August 2011...
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win10 在labwindows 中使用.net 控件总是报error = -6583
我有一个控件的.tlb文件，在win7上做如下操作，编译使用成功1. 由 .tlb文件导出.dll文件2. 用 regtlibv12.exe 注册 .tlb文件3. 在lab windows 工程中导入 .net 控件，选择相应的 .dll文件4. 编译运行。 同样的操作在win10下总是如下报错：
View ArticleTestStand and CVI Data from each other
I have an array buf[2048] in the UI interface, how to transfer it to the sequence file, please help to guide, thank you
View ArticleHow to Send Cyclic Can Frame With PCI-8513 Without XNET database
Hello , I search code for use PCI-8513 with CVI 2017 without Xnet DB,I have allready write code for Init / Read / Write CanHdl NiXnetCanInit(char * Interface,int BaudRate,short...
View ArticlePC upgrade: transferring license to new PC.
I have CVI 2012 full development (CDs) and running on a Windows7 PC. Work has upgraded me to a Windows10 PC and now I need to transfer CVI. How do I accomplish this without having a CD drive?
View ArticleSine waveform generate from feedback
Hi i am developing PID controller, i am generating sine wave (10v, Hz) for Set-point, in feedback I am reading encoder Count.my problem is how to convert my Feed-back encoder count into wave-form in...
View ArticleUndefined symbol which is defined in my Dynamic project
I am new to LanWindows and working on a Legacy application, which has many projects defined as Dynamic Link Library using 2010 LabWindows . I created a new Dynamic Link Project, say my_DLL_prj. Added...
View ArticleHow to design Digital CRO using Labwindows/CVI
1.Requiremnt is simple i have to read 10 volt Analog signal I will pass to ADC.2.how to plot analog waveform in CVI GUI from ADC in Labwindows/CVI
View ArticleDubt on strncpy documentation
Hello all, in the CVI help the documentation of the srtncpy you can read what's following OutputNameTypeDescriptiontargetStringchar []Contains the target string to which the specified number of...
View Articlesetsockopts() / SO_KEEPALIVE support for servers?
A quick search through this forum and the help file didn't show me anything obvious... Is there LabWindows networking support to alter the keepalive (such as standard TCP/IP setsockopts call and...
View ArticleUsing Ethernet encoder with cDAQ9184/9188 using LabWindows?CVI
I am currently using LabWindows/CVI to collect data from cDAQ9184 and 9189 racks. We wish to incorporate a high-resolution absolute position encoder into the software calculations. Our options so far...
View Articleis there a Thermotron Driver available using Ethernet - I am using LabWindows...
I am adding feature to my lagacy product, so have to use LabWindows 2010. I am wondering if there are Thermotron drivers using Ethernet ( prefer ) or RS-232.many thanks,Qing
View ArticleExecutable not working on other machine
Hello I have developed the code to control power supply in my machine/windows 10 computer (CVI 2015) later created executable. I copied executable in test machine/computer (win xp), with CVI2015 RTE...
View ArticleFileSelectPopup "Wrong Concurreny" Error
Hi All, I just upgraded CVI from 2013 to 2019 and now I get error -180 (UIEFileDialogWrongConcurrencyModel) when using the FileSelectPopup(Ex) function. I am using 32-bit CVI 2019 on a 64-bit Win 8.1...
View ArticleVersion Control - files to ignore (.gitignore file specifically)
For LabWindows/CVI we have source code for 4 different utilities. I am looking to get these into our version control system. We use GIT but this would apply to any of the possible version control...
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