can I use visa for rs232 to db25 port?

[nivals]

I'd love to see the new MOD.vi 69 KB that was attached to this email but am running version 7.  Any chance of getting a version I can see?

In any case, am I correct to assume that the visa vi CAN read correctly from a USB port whch has a USB to rs232 adapter on it?  Does LabView do this automatically?

Thanks,

[smercurio_fc]

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@nivals wrote:

I'd love to see the new MOD.vi 69 KB that was attached to this email but am running version 7.  Any chance of getting a version I can see?,

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Attached is the VI in LabVIEW 7. WARNING: You will get an "insane object" error when loading the VI. You can still load the VI. You will need to replace the chart with a fresh one. Delete the one that's there, and place a new one on the front panel. Downconversion sometimes doesn't handle charts correctly. FYI: in the future you can post downconvert requests in the Downconvert Requests Thread.

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In any case, am I correct to assume that the visa vi CAN read correctly from a USB port whch has a USB to rs232 adapter on it?  Does LabView do this automatically?

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From LabVIEW's perspective it will simply see a serial port, since the drivers will be installed by the operating system, so it's handled at that level, not at the application level.

[nivals]

Knight of NI, 

Thanks for the reply and the LabView 7 version of the block diagram.  However, it was for a sine simulator, not for a vi to read the input to the USB port (via an RS232 to usb converter).  Is it possible to get that diagram?

Thanks.

[Dennis_Knutson]

Your question makes no sense. The converted VI does have a VISA Write and Read from a serial port.

LabVIEW also comes with a serial port example VIs.