problem with keithley2000/labview interface

[leandrodzc]

Good morning everybody

I am new in this forum and in Lab view and my task is to do an interface with this port.

After read lots of messages here, I remember that I installed NI 488,2 driver and It didnt work. So,  I uninstall-ed NI488,2 and then Installed keithley driver(It is not possible to have both because they are conflictant) and installed another drive That a I have found in this forum(keithley 2000).

I made the device communicate with the Labview but I dont know what happened that in the next day that anything was working!

I am afraid that some actualization was installed when I restart the computer.

so, I will put in order every thing:

-installed all Lab view and drivers (including ni488,2)

-uninstalled ni driver and installed keithey interface to test the port comunication(that send me an asnwer of the device that can communicate with the port)

-installed labview-keithley driver for keithley 2000 multimeter, found on the forum´s topics.

-opened the single measure Vi example and it worked!

Next day:

-I installed other drivers for the other device I  need to comunicate, the keithley 7002,and my programm stopped to comunicate or find gpib 11( the address of gpib)

-so, Unistalled these programs and It Worked again.

-I turned on my computer next day and It wasn't working again! it was unable to find the gpib correct address. I notice that in the max, the gpib changed automatically the address of the device to 10 (but the day earlier, was 11, the correct one and working) 

-things tried: reinstall all drivers, delete all new programs I installed, turn firewall off.

I tried to configure another gpib but are so much addresses and I don´t know what to put in the fields.There isn't other way to detect automatically?

(F5 only dosnt work).  I didnt need to configure in the first time.

I have no idea of what else to do

thank you very much

Leandro V. Zaccarias

[ReginaW]

Hi Leandro,

To be able to help you I need some additional Information from you:

1. You wrote you uninstalled NI driver -> I guess you just unistalled NI488,2 driver (nothing else), did you? In this case it is absolutely necessary to uninstall NI488,2 driver so this was the right first step

    you did.

2. Did you use "Scan for instruments"? (Right-Click on GPIB-> select "Scan for Instruments")

3. Did you use the right VISA recource name?

4. You wrote that the system was unable to find the correct GPIB address. How is this problem displayed? Do you receive an error message? If so, what does this Error Mesage tell you?

5. Can you see your devices in the Hardware manager of your operating system? Which operating system do you use?

6. Which version of the Measurement and Automation Explorer and LabVIEW do you use?

As additional information it would be great if you could post the MAX Protocol (you can generate this by openin the Measurement and Automation Explorer -> select file -> select generate protocol)

With this I can see your entire hardware and software configuration.

Thank you very much for your additional information.

Regards

Regina Walch

Applications Engineer

National Instruments

[leandrodzc]

I just finish to uninstall and install again the entire LabView program and also the other required drivers,as you said It is correct just as the first time.

It is working again. I haven´t tryed to run the drivers from 7002 device yet, that I think that could be the cause of the problem; but I will do it tomorrow because is almost evening here.

Maybe It was a problem with the MAX program as commented in this post and I reinstalled everything, with the patch they asked, It had been fixed:

http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/MAX-visa-returns-no-instruments/m-p/493786

I hope It doesnt stop to work again but if so, I will post here everything.

Thank You Very Much for the attention and the fast answers!

Everybody makes this forum work very efficient!

regards

Leandro V. Zaccarias