GPIB-USB-HS is blocking my laptop

Similar Questions

• Problem of earthing GPIB-USB-HS connecting to a laptop?

  Hello

  The installation guide for the GPIB-USB-HS asks to "ensure that the computer and the GPIB devices are at the same potential on the ground."  I was wondering if there could be problems with the connection of portable computers (because they float)?

  What should / could happen if the computer was at a different potential on the ground?  A short circuit?

  Where the potential of the Earth is different, the installation guide also mentions to use isolated a GPIB bus isolator/Expander or a USB hub.  I guess that laptop USB ports are "isolated" and so should be good.  Is this true?

  Thank you!

  Meister,

  Because your laptop is "floating" it's referance (mass to the chassis) has nothing to do with your referance of material (Earth) unless you take measures to link the laptop chassis to earth potential.  Attach a GPIB cable to your laptop and your equipment will provide a way to fulfil the potential difference between your laptop and chassis of the Earth through the GND signal on the Gbspecifications FOR bus.  The GPIB bus is not intended to carry large currents (great potential of discharge) and you can force entry on the laptop protection circuits or equipment when you connect the GPIB cable.  Its kind of like touching a doorknob one day dry after you walk on the carpet of wool - you will get a 'static' shock when make you initial contact.  Do it at your equipment and laptop often enough and you will damage them.

  A worst case is when the chassis of the laptop is linked to a different potential that the grounded equipment (usually due to strengthening of wiring errors).  In this case there must be a current constant circulating in the commonly known GBIP GND signal ground loop.  Noise and / or damage will be celebrated according to potintial unlike.

  The cure is ALWAYS connect the chassis of the laptop on the chassis of the equipment by an external wire before connecting the GPIB Bus.

  I hope that clarifies the reasoning of 'Warning' that you see in the installation guide.  Kudos to you for reading your guide and to pay attention to the warnings!  Never be afraid to ask when you don't understand warnings

• GPIB-USB-HS works selectively

   

  Situation

  -an old HP3962A works very well using a PCI-GPIB connector on a PC. Code of Labiew.

  -a digital Voltmeter K2000 works well using a hub of GPIB-USB-HS, on a laptop. Laview code.

  Problem:

  NIMAX does not recognize the HP3962 when you use the GPIB-USB-HS hub, on the laptop, although it recognizes seveal other instrument, such as the K2000 dvm.

  Thanks for the suggestions, Philippe

  After having removed the long 1.5 m GPIB cable and linking the GPIB-USB-HS unit directly to the old HP3562A unit, NIMAX recognizes this instrument (low level).

  Direct com on NIMAX does not, but the LabView code (old) written to read the data works.

  The bus speed was maybe the question.

  Resolved for now, thanks to you all.

• GPIB-USB-HS driver problem

  Hi all

  I am trying to use a GPIB-USB-HS device on my laptop that I used successfully on my desktop.  NOR-488. 2 is installed on the laptop.  The Wizard "new hardware found" appears when I plug in the USB.  I select locate and install and I get a message saying "windows didn't load the installer for the GPIB.  I wait a few seconds and I'm propted to insert the disc that came with the device.  I do (NOR-488. 2) and continue the installation, I get to the point where things should start to arrive and I tells me that the driver is already installed.  I tried uninstalling and reinstalling with no luck.  I tried to look for the driver to my desktop and put the file on my laptop, not to go as well.  What should I try next?

  It is my understanding that the driver for the device is NEITHER-488. 2, at least it's the only drive I had with the unit, and documentation says there is a device for the device support.  It seems in any case, I have solved my problem.  I plugged the camera and went into the Device Manager and I put it on the tab interface NI GPIB driver.  The computer recognizes it from there.  I am running.

• GPIB-USB-HS and USB-8451 communication issues - appearing only in VISA

  Hello

  I recently started a new job and have had communication problems between my adapter GPIB-USB-HS, my VISA or MAX-Labview and USB-8451 I2C/SPI interface.  I installed LabView to 32 bits, OR-488. 2, the driver for the 8451 on my windows desktop and VISA 16.0 7.

  In the windows Device Manager, the 8451 appears as a device USB of NI-VISA and Gbspecifications FOR-USB-HS presents itself as a GPIB Interface of NOR.  Two of these instruments are recognized NI Max so but communication Gbspecifications FOR add-in adapter (and connected instruments) fails and he can't find the instruments and the self-test fails with a hardware error unknown gpib (-37052).  The watch also neither device VISA Interactive Control.

  The ready light is lit on the GPIB-USB adapter and the 8451 flashes green as if nothing is wrong at the end.  I uninstalled all the software of NOR and reinstalled, and I run MAX as an administrator.  Is there possibly some computer settings I could neglect or need to change to open a communication?  Any other ideas on why I can't communicate with devices?

  Thank you!

  Trey

  This is a device-Lock software that my it was preinstalled on the computer blocks the USB port.  SHE has added features like confidence, and now it works.

• GPIB-USB-HS is not correctly recognized NI Max and impossible to find NI VISA resources

  Hello

  I use a laptop Lenovo T400 with Windows XP SP3 and NEITHER 488.2 14.0 installed top. I plugged the laptop GPIB-USB-HS. It can be found in Device Manager normally but may not be properly recognized OR max. In addition, it is not found in resource NI VISA either. Please see attached picture. I reinstalled OR 488.2 and NI VISA. The problem is still there. Advice please? Thank you very much.

  Sincerely,

  James

  OR GPIB enumeration Service is not started. The problem disappeared after the service started. Thank you.

  rqg0717 wrote:

  Hello

  I use a laptop Lenovo T400 with Windows XP SP3 and NEITHER 488.2 14.0 installed top. I plugged the laptop GPIB-USB-HS. It can be found in Device Manager normally but may not be properly recognized OR max. In addition, it is not found in resource NI VISA either. Please see attached picture. I reinstalled OR 488.2 and NI VISA. The problem is still there. Advice please? Thank you very much.

  Sincerely,

  James

• Satellite Pro L500 - press Fn key blocks the laptop computer to blue screen

  Hi all
  First post so please ask if I did not include all the necessary information.

  I have the Satellite Pro L500-1TX (Win 7 32 bit os) and everything worked fine including the Fn menu drop-down button.

  Now, whenever I press the Fn key, it blocks the laptop to a blue screen. The computer then restarts automatically and that it was an unplanned shutdown offers the usual safe mode option.

  Unfortunately, I do not know when this started as I do not use the fn often hesitate so just do a system restore. I don't know how far back to go. It was several weeks before I associated accidents hit the Fn key.

  Any suggestions as to which Toshiba drivers may need to be reinstalled. The computer otherwise works fine.

  Cheers in advance
  MTV

  Great! Thanks for this feedback that I also found other threads about Support Flash Card utility and it is the tool command keys FN so read the forum in other threads contributes without doubt! ;)

• Connection of an instrument with GPIB-USB connection.

  I am trying to use a GPIB-USB adapter to control a unit of Source of LabView. However, I have problems my instrument drivers to recognize the GPIB address specified for the device. I have attached an image below the address specified by IO Keysight connection Expert. I am currently trying to initialized the EMS with the GPIB driver I have attached below. Because of my knowledge limited in LabView instrument control, how should I approach of collecting the correct address of GPIB and recognize it in my VI?

  Hi wyattcurtis824,

  Before we dig into the LabVIEW code, I would recommend a Test Panel of max aperture and trying to communicate with. Are you able to send orders via Keysight connection Expert or NI MAX and see the valid data?

  In addition, when you run the vi in LabVIEW, is pilot it returns an error in the error on the box? If so, what the error is?

  This shoule information help us to the root of the problem.

  Best,

• GPIB-USB-HS shows no MAX after that I used the wizard NI VISA DRIVER

  I accessed GPIB USB HS in the MAX software. As I was not able to communicate NF RLC remotely, so I tried Wizard DRIVER VISA OR according to tutorial Assistant pilot NI VISA , however, thnings went wrong and I am not able to see same GPIB to the MAX software now. What should I do now?

  The first picture below shows the GPIB USB HS as shown in the software MAX and the other image shows no GPIB USB HS.

  

  

  Yet once I installed driver USB GPIB link below:

  http://www.NI.com/download/NI-488.2-15.0/5427/en/

  Its working fine now.

  Thank you.

• OR GPIB-USB-HS + NI GPIB-USB-HS vs

  I have a visual basic program 6 which measure IR using a meter of high resistance of agilent 4339 B.

  The existing work PC running Windows XP and use the NI GPIB-USB-HS and works very well.

  The original code uses the 32-bit Visual Basic Language Interface Version 1.7 of National Instruments with the DLL of NOR-488.

  When I try to use the NI GPIB-USB-HS + controller it does not work. I installed the new driver for the NI GPIB-USB-HS +.

  I uninstalled the driver and returned to the NI GPIB-USB-HS controller and re-installed the driver appropriate for her and the program works.

  I tried to implement the same program on another PC and could never get the program to communicate with the tester using the

  OR GPIB-USB-HS + controller.  That is when I decided to check the controller has worked on the original PC and discovered that it is not.

  I also had the same problem with communications with the bridges of cap and had to re - write programs using NI-VISA that the

  OR GPIB-USB-HS + works fine when with.

  I would have thought the NI GPIB-USB-HS and the NI GPIB-USB-HS + both work on the same application without any

  code changes just and necessary update the driver.

  I thank in advance for any help, you can provide on this subject.

  Thanks - I made some progress on that yesterday.

  It turns out that the initial program had the primary address of the hard coded device.

  I added logic to get the main address of the device and I have replaced the hardcoded with a variable value.

• GPIB-USB-HS will recognize any instrument in LabVIEW but somewhat done in MAX - help

  Hello

  I'm having a problem getting my GPIB-USB-HS device to recognize instruments in LabVIEW.  The unit has been running year last on many instruments.  I tried the GPIB-USB-HS other materials too just to make sure it wasn't a defective unit.

  NOTE: I installed the latest drivers for NI-VISA 5.1.1 and 300 of NOR-488. 2 for Windows XP

  See the images below:

  It's the idsplay to the MAX:
  I'm not sure why there is a yellow "!" next to GPIB0::INTFC, I think it's an indication of my question.  However, note that the instruments connected to my GPIB-USB-HS are counted in MAX.  As you'll see LabVIEW 8.5 does not recognize them.

  

  I get this error Max warning when I try to open TOOLS > NI-VISA > VISA INTERACTIVE CONTROL:

  

  It comes to the image of my LabVIEW 8.5 window when I try to select a VISA of an instrument (including MAX recognizes):

  

  Any help would be much appreciated

  Thank you

  -Brian

  Thank you all for your help,

  Problem solved after hours of uninstallation and reinstallation of all devices/software from National Instruments.

  Once all programs have been uninstalled (with a disk cleanup on my unnecessary hard-maybe records)

  LabVIEW 8.5.1 has been reinstalled

  NOR-DAQ has been reinstalled

  NI-Visa 5.1.1 has been reinstalled

  NOR-488. 2 worm 2.7.3 has been re-installed (correctly)

  Now, LabVIEW recognizes all ports/devices and connects to the instruments properly once more.

  My question must have been installing LabVIEW 8.5.1 after already installing LabVIEW 2009.

  Somewhere during the installation of 8.5.1 - main post problem occurred.

  Thanks again

• Place HP 34401 in Local with GPIB-USB-HS Mode

  Hello

  I'm using LabVIEW 2010 SP1 to control the 34401 HP with the NI GPIB-USB-HS device. I use I/O built-in 34401 instrument drivers.

  If I plugged in everything, the 34401 will be immediately placed in "Remote" mode when I run my software. However, I would like to be able to use LabVIEW to force the 34401 to 'Local' mode Unfortunately I could not find a way to do this. I tried Close.vi, but has no effect.

  Here are my planned operation if it makes things clearer:

  1. Launch the software
  
  
  2. Initialize the 34401
  
  
  3. Place the 34401 in the 4W resistance measurement mode
  
  
  4. Pass the 34401 in "local" mode so that the end user can adjust a knob until the desired resistance is obtained while seeing the value of the resistance to change on the 34401
  
  
  5. Re-initialize the 34401 when I need to switch to another measure

  If not, is there a way to get the 34401 to permanently display how it is taken in remote mode?

  Best regards

  Ian Williams
  Linear Applications Engineer
  Product precision linear, and remote sensing

  The feature I mentioned does exactly the same thing except that you have to do this awkward analysis of the address. It's a VISA function you have just used the search button to find (and have lit context-sensitive help) to obtain explanations of what he does.

• Difference between NI GPIB-USB-HS + and NI GPIB-USB-HS

  I would like to know the difference between GPIB USB HS + and HS (without the +)
  Seems to me that the HS has not onboard GPIB analyzer but with a GPIB ASIC chip.

  Main difference is speed, which is strange, the HS has a speed faster than the HS +.

  Any person using or has used before these two? Is there a difference in user POV?

  The + said 1830 kB/sec, which equals 1.8 MB/s. You do not understand that?

• Error of Driver GPIB-USB-HS - 10 possibly after Feb Windows Update Windows

  Starting from 17/02/2016, GPIB-USB-HS material (2) is no longer connecting on 10 of Windows using NI488.2 Rev 15 15/8 with the 15.0.1 patch.

  Using VMWare player 7.1.3, the VM sees the material, connects, turn lights and then turn off. The virtual machine shows "Driver error" unable to connect to the USB device. This has been tested with two USB devices that have worked with the same setup for a few years now on Windows 7, 8, 8.1 and 10 using VMate 7.x and 12. xs

  Possibly this is related to the last update of Windows,

  Repair, or a full installation of rev 15 NI488.2 solves this problem.

  VISA still works via TCP/IP.

  Any thoughts will be greatly appreciated.

  Update: the pilot is still alive.

  The latest version of Windows, which has been applied to the host system 05/03/2016, restores the driver under the guest virtual machine feature. Revisions to operating system host and client are now at 10586.122.

• Synchronization and optimization of keithley-Labview with GPIB-USB

  I started an old thread on this subject, but I have some new problems. My vi is to control a Keithley sourceMeter to read measurements every 5 ms for 6 to 10 hours, using GPIB-USB. The vi simply sends the commands under a full script to the instrument and then bed measures (voltage and current) in a loop using the visa and saves the data and displays them in a second loop using a queue. I decided to use a queue and a second loop due to the delay caused by reading data, save them in a file + display, all in a single loop! I want to be able to see all the data with real time axis, so I used a xy chart.

  Having a shorter time in the upper loop isn't a bad idea.  Using the wait until the next ms multiple rather than just the Dequeue wait time can cause the occasional time jumps.

  I have no LV open now, so I'll try to remember your VI.  I think you picked up 3 data values and a timestamp of each 5 ms.  It is 800 items every second. If you want to save all the data but only write to the file every 5 seconds, you will have to accumulate 4000 items. Because file entries are not always made exactly when you ask them because of the behaviour of the OS, you must allocate a bit more wide open spaces.  You can initialize an array 2D as 1200 X 4 (1200 lines of 4 columns) of NaN. Place this table into a shift register.  Every time you Dequeue data, replace the next line with the data.  When you write to produce, use the subset of the array to get the part that was replaced with real data and write the part in the file.  Return the initialized array of NaN in the registry to offset and continue to replace the data.

  Lynn