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System instruments on USB or Ethernet

I have USB-only and USB/Ethernet instruments that I need to use as system instruments.  I can talk to these boxes using the VISA FSC when they are the UUT; however, I do not see how to do this when they are configured as standards.  Is there a way to communicate with these units as system instruments in MET/CAL 7.3? 

-Nick

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James Smith

I do not think they have given us the ability to do such a thing stright out of the box. The VISA FSC is really only applicable for the UUT. If one was so inclined to learn the LIB FSC, you could probably write a sub routine to use the LIB FSC to call NI. It is sort of a difficult round about way, and there may be an easier way, but that is the only thing that comes to mind. However, I do not know if the LIB FSC is available on 7.3. I think it is newer than your version. If someone else has an easier way, please feel free to share it. I have been wondering the same thing myself. 

 

Perhaps another way is to write a small executable program and call it from within MetCal?

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bill reynolds

The easiest way to use a standard that is USB it to purchase a TEK-USB-488 adapter. you simply connect it to the IEEE port and the USB device.  you can set the address 'default 1' to any address see manual on the Standard or TEK-USB-488. then you just write a sub procedure to talk to the standard using IEEE FSC. I use the adapter for calibraion of UUT's that are USB only devices by connectting to IEEE Port 1 and sending the commands with IEEE FSC. The adapter cost arround $850. The other way is to write an external program and pass values with the DOS FSC and talk to the device using the external program. This requires external programming skils. The adapter method only requires MetCal IEEE FSC knowledge.

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Dale Chaudiere

If the USB device is the UUT, why not use the VISA FSC?   If the commands are compatible with the IEEE FSC, then the will also work with the VISA FSC.  The only exceptions are special constructions concerned with SRQ, serial poll, and EOI.

However, with that said, if you already own the USB to IEEE-488 adapter for references, one benefit of also using it for the UUT is MET/CAL's built-in "Find Listener" to locate the UUT on GPIB 1.  Of coarse if it an adapter is needed for a USB reference and USB UUT in the same procedure, then you would need two adapters.

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SHEMEER MUHAMMED

Hi

can any one help me for Fluke DTX 1800 or 1200 Cable analyzer  mmshemeer@gmail.com

please contact me this for fluke dtx 1800 calibration if some body know kindly mail me.

 

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