??? Re: PCMCIA 2port high speed CAN card

[laixunian]

To All,
         I have a question.
         I use a PXI 8464 2 ports CAN Card. Port0 is used to send 10 frames message, and port1 to send 9 frames message. The sample rate of each frame is 1Hz. But Labview tells me the error "The number of periodic output tasks (Mode = Output, SampleRate > 0) exceeded the limit. Solution: Reduce the number ofperiodic output tasks in your application; If you are usingLabVIEW RT you can schedule periodic transmit (Sample Rate= 0) in the diagram."(eror code:0xBFF62130).
        According to the explain of biker2000, I think in a second ,to send 19 frames CAN message is easy to any ECU.So where is the problem?
Thanks,
Lai
 

[MXI Master]

Lai, I assume you only have one task open on each port at a time, and you are running windows. Please correct me if I am wrong. Judging from the error message you are receiving sounds like it more has to do with how many tasks you have open, rather than the rate. What you would like to do sounds like it is well within your hardware's capabilities. What development environment are you working in? A simple way to create a multiple periodic tasks is just create two copies of the "Can Transmit - periodic.vi" example.Also, in the future I would recommend opening a new thread rather than posting in a 3+ year old thread, more people will see it. You can still reference the old thread through a link.