cRIO NI-9853 Not Supported in Scanning Interface Mode

[chassan]

Hello folks,

I'm attempting to use a cRIO 9104 chassis (w/FPGA backplane) in the hybrid configuration mode (i.e. some modules in scanning interface mode and some in fpga interface mode).  I am trying to configure the cRIO for this via the information in this document: http://digital.ni.com/public.nsf/allkb/0DB7FEF37C26AF85862575C400531690

I would like to use my NI-9853 (2-port CAN card) in scanning interface mode, however, whenever I:

1. add my cRIO chassis to my project in scanning interface mode

2. attempt to discover the C Series modules

I get the following error in a window entitled "Compact RIO Discovery Status": "Failed to discover C Series modules".  "Compact RIO: One or more discovered C Series modules are not supported by the current versions of LabVIEW and NI-RIO.  The unsupported modules are: Slot 4 (NI 9853)".

Subsequently, the NI 9853 does not show up in the project explorer.

However, if I add the chassis to my project in fpga interface mode, the NI 9853 module is detected and does show up in the project, but then it is in fpga interface mode instead of scanning interface mode.

Any ideas about what may be preventing me from using the NI9853 in scanning interface mode?

Best Regards,

Chris

[Paul M.]

Chris,

Unfortunately, the NI 9853 CAN module as well as all C-series Communications Modules (Serial, CAN) are not supported in Scan mode.  This is because of some underlying fundamental differences in the way Scan mode works and the way the communication modules work.  We are actively working on products and solutions that let you use the communications modules without LabVIEW FPGA, but for the time being, FPGA mode is the only way to work with these modules.

Message Edited by Paul M. on 09-02-2009 02:28 PM

[Donovan_B]

As Paul mentioned, the NI-RIO driver does not currently support the cRIO-9853 in Scan Interface Mode.  For a list of modules that are and are not supported, please check this list.

[chassan]

Hi Paul,

Thanks for the info.  Can I simply pass the CAN info to/from the FPGA via a FIFO?

Best Regards,

Chris

[Hueter]

Chris

Yes you can use the moduel in FPGA mode and pass the data up to your real time controller using a FIFO. I recomend getting started with the shipping example Go to the example finder and browse to

Hardware Inpout and Output»CompactRIO»Module Specific»CAN»985x with NI-CAN