04-06-2009 04:46 AM
Hi All,
I had NI HS-USB-GPIB Controller and keithley USB-488 Controller
Initially i was able to control instruments with NI HS-USB-GPIB Controller
Later i want to use keithley USB-USB Controller so i installed driver given by keithley USB-488 Controller
Now i want to revert back to NI GPIB controller
My problem i have uninstalled 488 GPIB driver given by keithley, installed NI USB-GPIB Controller drivers
I was able to see the controller and Instrument connected in the MAX, but i was not able to see it in labVIEW VISA control
could you suggest where problem could be
Thanks
04-09-2009 09:40 AM
Hello Appala,
I am unsure about what the problem could be. What versions of NI-488.2 and 488 GPIB were you using?
Also, you mentioned that you are able to communicate with the device (scan for instruments worked correctly), is this still correct?
Thanks,
Steven T.
04-09-2009 09:53 AM
04-14-2009 11:30 PM
Hi all,
Yes, i too suspect the same,
but i have unistalled "CEC-488", is there anything else to be uninstalled.
Thanks
04-15-2009 01:26 AM
OMG!
Like you can't define a VISA sesion to the device...
Keithley submits drivers to the NI web-site in (almost) real time
Primarilliy because the XXxx01 has a FW update "flash-port" abd is,(by mfg spec) "488.2 compliant " , goes to < gotos?> an unk state when it receives <"IDN?">
Don't *IDN? a kiethley instrument (It will hang up)
Don't *IFC while an unkown instrumet is hanging on GPIB:x (some controleres take this as "QU"- or "Quit Controlling"
READ the MFG users guides
DO NOT assume that a spec will tell you that a device isn't (really) 488.2
ANOTHER (488.2) NON-compliant device!
Anyone care to make a comprehensive list?
04-15-2009 07:32 AM
04-16-2009 07:28 AM
Hello Dennis,
I was able to see NI-VISA in MAX Software section