Problem with USB-6218

[Guimaraes]

   I'm using a USB-6218 device to read signals for studies about electrical power quality on “differential” input configuration and “on demand” mode. At first the device worked well until it has shown a problem. In the MAX program, appears a caution symbol ("!") over the device icon. When I use the test panel the screen doesn't show anything and an error-200474 is reported.

   If I reset the device through MAX a message that it was reseted is showed but the problem doesn't disappear. If I make a self-test, the device passes at the test in spite of the problem. When I try to calibrate USB-6218, the program stops working requiring me to disconnect the device from computer.

  Is this a software or hardware problem?

  Thanks.

[JÞB]

It sort of sounds like you blew the device after subjecting it to inputs greater than absolute maximum allowed.  How was the input referanced to ground?

[Mauro Vera]

Good morning,

Follow the links for the error that happens in your application, if not please send a "PrintScreen" error to be able to find a possible solution. Thank you.

Error -200474 With Digital Frequency Example VIs Modified for Continuous Acquisition

http://digital.ni.com/public.nsf/allkb/4E017925BDF2DC2D862572E6007C9594?OpenDocument

Why Do I Receive Error -200474 When Verifying an S Series Device In Calibration Executive?

http://digital.ni.com/public.nsf/allkb/F94FF852680CA9F78625739F007B3ECF?OpenDocument

Sincerely,

[PSJr.]

Hi Guimaraes,


In the calibration process , you SHOULD disconnect the board to make a isolated test in MAX.
Try to realize this test and report here if you have any errors.

[Guimaraes]

I was reading a voltage signal from a voltage stabilizer (of course I conditioned the signal using a voltage divider). I decided to connect the AI GND to ground output of that device. I  have made a mistake?

Excuse for my English.

Thanks.