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MODBUS-RTU connection with aleatory VISA communication fails
Hi everyone, I have a big problem that I'm trying to repair since a pair of months. I have a MODBUS gateway connected to my pc via RS-485 in RTU mode. The physical implementation is based on Ethernet...
View ArticleSCXI-1000 not detected
We've got a lab where they have recently installed 32-bit Windows 7 on an old computer and reinstalled LabVIEW. I believe that the version they installed is 8.5, or thereabouts. They also installed NI...
View ArticleBrief Overview of NI Drivers
I would like a general overview of the NI drivers (i.e. what is the name and extension of the main driver file, does it call functions from a different .dll file, where is the location of the driver...
View ArticleHP 3852A Data scanning speed
Hi Labview usersI have 3852A DAQ, which is connected by GPIB-USB-B. It's data scanning/updating speed is lower than expected. It's reading 32 data (23 of thermocouple, and 9 of analog voltage), and the...
View ArticleHow to activate the APD' input gate (SPCM-AQRH-15, Perkin Elmer) by TTL pulse...
Hi everyone, I'm newbie in electronic stuff. In my experiment I'm using the APD photodiode from Peikin Helmer (SPCM-AQRH-15) to count # of photon (fluorescences). I want to gate the APD by applying on...
View ArticleVXI-MXI-2 is not detected in VIC / VISA panel
Hello, I have a VXI work station (VXI-MXI-2) with Windows XP (PCI-MXI-2). I had installed the nivxi 3.1.1. The VXI-MXI-2 card is not detected / showing in the VIC panel. Only the PCI-MXI-2 is detected...
View ArticleVISA resource name problem with Hameg HMS1000
Hello, I have a HAMEG HMS1000 spectrum analyser and i want to communicate with it using NI VISA and SCPI commands. First i created a driver for my device with the informations given here :...
View ArticleRS-485 /Wire2-EchoDTR loopback example - Error -1073807330 occurred at...
Hello, Im trying to check if my USB to serial RS485 converter (Digitus- DA-70157 FT232RL based) is working. When i used RS232 i could perform simple loopback test in Realterm/hyperterminal/Br@y++...
View ArticleFail to communicate with ISCO Series D pump controller
Hey everyone,I have an Isco Series D Pump Controller (which is connected to an Isco Model 100DX Syringe Pump) that I would like to control using RS232 on Labview. I do not have their LabView Toolkit...
View ArticleNI GPIB-USB-HS Multiple Units Running in Parallel?
I have FOUR GPIB Devices running on a NI PCI card on a single PC. The only problem with the GPIB Bus is it must be a sequential read. This forces me to read data one at a time and this isn't fast. I...
View ArticleAG53131A labview driver
Hi guys, is that anyway to get the labview driver for Agilent 53131 frequecy counter as attahced. I download the driver from NI but unable to control the devices even it is in remote state already....
View Articlehp3458a_revision_query issue
We're using a NI driver for the HP3458A DMM from LabWindows/CVI. The source file is hp3458a.c. The function hp3458a_revision_query() throws an exception. The following line in this function appears to...
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NI VISA Write Error on 64 bit application
Hi there, I had recently trying to compile my working 32bit Labview application to 64bit since I want to try out the performance under 64bit OS. 32bit application is noticably slow on a 64bit OS.Here...
View ArticleUSBMTC scope VISA resource
This is my first time using a USBMTC instrument. We purchased a Tektronix TBS1052B.NI-MAX detected it, and I am able to do a *IDN? query. I am concerned that the VISA resource that is used now on my...
View ArticleNI-488.2 14.0 Runtime installer does not work nicely with installer toolsets
Hi Everyone, I am trying to build an installer that will run the NI-488.2 14.0 Runtime installer as a prerequisite package. Unfortunately, it doesn't appear to be packaged nicely as I am not able to...
View ArticleEaton PLC Controller With Labview
Hello,I am trying to control a furnace that comes with an Eaton PLC. The default ports options are Ethernet and RS232. GPIB port would cost extra money to install. While communicating with the...
View ArticleviRead() always get VI_SUCCESS_MAX_CNT(3FFF0006) even though the buf is big...
Hi ,i am using NI-MAX 14.01, with its visa driver, i want to read 75000 bytes data from an agilent instrument via hislip. i have already allocated a 99999 bytes long buffer, suppose it is big enough to...
View ArticleFID testa (Hydrocarbons emission measuring instrument)
Hi guys,I am new to labview.I have an instrument called FID tester that is connected to the wiring box (PCLD-780) which is in turn connected to labview. The instrument gives both digital and analog...
View Articlekeithley 2410 wrapper class
Hello, i was looking for a ivi-com driver for the keithley 2410, and there exist only for IVI-C, but i need to write a program in visual c# in order to control the 2410, doing some research i read that...
View ArticleWatlow F4 GPIB USB HS communication problem
Hello, I am trying to communicate with the Watlow F4 controller on a Tenney Enviornmental Chamber. The only port available is a GPIB port. I successfully installed the GPIB-USB-HS cable and I can see...
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