Can I Use a USB-to-Serial Adapter on a CompactRIO?

[Fro2]

I believe I was told that the CompactRIO’s USB port does not implement a standard USB interface; therefore can not work with all USB peripherals. At present time it can only work with hard drive and some flash drives.  Is this still a valid statement?  Because I really wanted to use the CompactRIO’s USB port with a USB serial interface such as your NI USB-232/4.  Is this possible?  Note I am aware of the CompactRIO Serial Interface modules.  I really would like to use the USB port if possible.

 Thanks in advance for any information you can provide Fro

[Christian_L]

Fro,

As you noted the USB port on the cRIO controller can only be used to access USB memory devices, like a memory stick or harddrive. It can not be used to access other devices with or without the USB to serial converter.

[Fro2]

Is there a plan to incorporate into the VXworks or Pharlap code the drivers to allow anything other than memory devices on the cRIO controller?

 

Fro

[Kristen_K.]

Hi Fro,

I wanted to bring to your attention the RS-232 port that is on the controller as well.  Is there a particular reason you would like to use the USB port for communcation over the RS-232 port or serial modules?

Kristen H.

[Christian_L]

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Fro2 wrote:

Is there a plan to incorporate into the VXworks or Pharlap code the drivers to allow anything other than memory devices on the cRIO controller?

 

Fro

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This is something we are investigating, but there are no definite plans when this feature might be added.

[Fro2]

Kristen wanted to know why I do not wish to use the RS-232 port on the controller or use C series serial modules.  Well I will need at a minimum of two and a maximum of eight serial ports.  I already have USB to serial devices and I do not have any RS232 C series serial modules, I only have RS422 C series serial modules.  I was hoping I could just plug the USB to serial devices I have already into the cRIO controller, that way no further purchasing is necessary.

Fro