Compatible usb hard drive for crio

[gpburdell]

I have a cRio 9012 controller, and I need a large volume usb hard drive (hopefully bus powered) to store collected data. I am looking for something greater than 100 Gb. I tried a WD Passport, but it does not seem to work.

I noticed an earlier post by StGl (Stefan) with slow writes to a 320 Gb hard drive (http://forums.ni.com/ni/board/message?board.id=170&message.id=274484&query.id=70238#M274484), so it does seem that there are compatible drives. The delay would not bother me in my case.

Your help is appreciated...

[Christian Mergl]

The 9014 supports common USB mass-storage devices such as USB Flash drives and USB-to-IDE adapters formatted with FAT16 and FAT32 file systems. --> Out of the User Manual.

Do you have a FAT formatted USB device?

Christian

[gpburdell]

Thank you, I should have clarified that I am perfectly fine with the standard flash drives. I am currently using a 16 Gb flash drive from PNY. What I am interested in is a large volume one such as mentioned in the post that I listed.

Thank you....

[stanthetiger]

According to this article, the size limitation for the USB mass storage device that are supported by our cRIO-901x is 4GB if it's formmatted in FAT16 and 2TB if it's formatted in FAT32.

With LabVIEW Real-Time 8.5 all USB devices that conform common USB mass-storage devices such as USB Flash drives and USB-to-IDE adapters formatted with FAT16 and FAT32 file systems should function correctly. For more information, please refer to this knowledgebase article.

[przemmo]

Hi,
I'm using 9014 controller.
With regard to USB mass storage I want to ask one question. How can I get information about pen drive availability? When using "Get volume info.vi" I get no error code when usb is unavailable. Is there any other way to check if USB is ready to write?

[Jeremy_B]

Hi przemmo,

The USB drive will mount to U:\.  The Get Volume Info VI should return an error 7 if the path is invalid (IE, if the drive is disconnected).  Do you have a dialog box or error indicator connected to the error out wire of the Get Volume Info?  The real-time controller won't display the error unless you specifically tell it to.

[przemmo]

Hi,
I'm using the Get Volume Info.vi, but when the first time I tried to Write to file, say u:\data.dat, and there is no Pen Drive in the usb port the RT controller creates a folder on local disc c:\u and writes the data to this filder. When next time I tried to use the Get volume Info.vi and Pen Drive is disconnected it returns information about c disc without no error!! When usb is connected it properly returns information about u:\. So deleted the u folder from local disc and now it works.
But I want to know if there is any interrupt associated with plugging USB dirve?

[Jeremy_B]

Hi przemmo,

I don't think there is an interrupt for the USB drive, I think you would just have to poll for it.