Is there any problem with the 485 board card of NI's pxi8431/8?
The idle level of output in 2-wire auto mode is 0v, shouldn't it be logical high +5V? Check some data that there is no bias resistance, but the bias resistance how to add, no one can explain in...
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Connecting to Old Instruments Having +-12V RS232 Voltage Levels
Hi, I have an old piece of instrument built in the 1980s. It requires +-12V voltage levels for the RS232 interface. My eBay USB to serial dongle doesn't work. Can someone suggest a PCI or PCIe card...
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NI MAX
I am having problems getting MAX to recognize instruments.It only sees two power suppliesHowever, The VISA interactive control Sees all of the instruments.I have downloaded the latest version of DAQmx,...
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visa 生成的usb 的驱动不能被系统识别
大家好 我现在用visa生成一个usb hid的驱动但是在最后安装选项时无法安装到本电脑上，手动安装提示没有适合的驱动，系统是WIN10 VISA是19
View ArticleNI Driver Classes Not Inheritable
I am writing .NET wrappers around NI drivers. Why does NI not make the driver classes inheritable?
View ArticleHow to control two devices with GPIB-UBS-HS+ in VB 2019 ?
Hai, I am working with Visual Basics 2019 to control two devices using GPIB-USB-HS+. I could control one device by following syntax. Imports NationalInstruments.VisaNS Dim GPIB_ResourceString1 As...
View ArticlePCIe-GBIB card vs. GPIB-USB-HS
Hi All,On my PC (Win 10 OS 64-bit) unit I have labview software in executable version. In measurement procces three external devices with GPIB communication ports and one through serial port COM1....
View ArticleControlling Mettler Toledo scale (ML3002T), there are no Labview Drivers for...
I need to be able to tare(zero) a scale with labview. The scale I'm using is the Mettler Toledo ML3002T. There are no drivers for this scale in labview. I also need to get the current weight displayed...
View Articleconectar un dispositivo VISA
Hello!I need to connect a relay card to an array of Booleans to connect each relay, that is, I want to replace, in some way, the VISA read and the VISA write by the Boolean array, so that without...
View ArticleVISA read return count changes at times
The read return count changes at times. Thus making the communication to be lost and e establish itself when the return count comes back to normal. I am using an RS232 cable and serial port to...
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SCPI Commands
Hello, I try to communicate with SCPI commands to an instrument. I've done a visa command to send it instruction. The instrument is composed with 4 slots, and the slot 1-0 had 4 channel So with the...
View Article[Newbie] help to revive 1988 GPIB-232CV
Hi all - a newbie here with a problem I got a vintage (the board is dated 1988) GPIB-232CV (not -A) 64K adapter that I wanted to use to connect my HP 7475A plotter to a modern PC. I connected power to...
View ArticleQ: dot Net Connecto to Fluke 8846A In Lan Port using NI
Hello AllIt was the first time I used the Fluke 8846A.I could connect to 8846A with socket , and it done perfectly;But now I have a question that if I can do same thing like connect to Fluke 8846A in...
View ArticleHow to control two devices with two GPIB-USB-HS+ simultaneously in LabVIEW?
Hi, I'm learning how to use LabVIEW to control my GPIB devices. I can find my device in NI MAX and run the examples provided by LabVIEW, "Simple GPIB.vi" and "GPIB with VISA functions.vi". But in these...
View ArticleNI's VISA32.DLL not compatible with Keysight's
HI:I use the visa32.dll development tool Declare Function viOpenDefaultRM Lib "VISA32.DLL" (ByRef sesn As Integer) As IntegerDeclare Function viGetDefaultRM Lib "VISA32.DLL" Alias "#128" (ByRef sesn As...
View ArticleGet actual date/timestamp from Tektronix MDO3024
Dear all, Being a relatively new user to Labview I am trying to build a program to acquire and save data from an oscilloscope. I have connected an MDO3024 to my computer and am using the "Tektronix DPO...
View Articlevisa read value changes
After the axis hits the limit switches the visa read value from the motion conrtroller changes. The byte count is still equal to the return count but the value in my visa read changes only after...
View ArticleReading SR400 photon counter buffer at every period
Hello, We are using a photon counter SR400 with Labview. We had an old code that was working properly on Labview 2010 (on Windows XP), but we have now rewritten a new code in Labview 2018, on a new...
View ArticleVISA Framing Error in VisaNS
I am upgrading an old software package from VB6 to VB.NET. The old system uses the CWSerial object for serial communication and that system works just fine. In the new software, we have upgraded the...
View Article488.2 DOS Support in Windows 10 32-bit
We have a PC in our production environment that was running Windows 7 32-bit and has been upgraded to Windows 10 32-bit. The NI488.2 driver in NI Max has DOS Support enabled because there is a DOS...
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