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Connect/Disconnect terminals PCI-6624

Hello Everybody, I'm currently using the "Connect/Disconnect terminals" vi to copy frequency signals between 3 PCI-6624 boards, with a RTSI cable between them.

 

Attached is a screen of my VI.

 

So, I have 3 PCI-6624 boards, named Cpt0, Cpt1, Cpt2.

I have 3 signals to copy, the first one (Shuttle) will be copied to 4 destinations.

The second one (Brakes) will also be copied to 4 destinations.

The third one (SeatSwitch) will be copied to 1 destination.

 

The 3 source signals are connected respectively to the Cpt0/PFI30, Cpt0/PFI27 and Cpt0/PFI35 lines.

 

Every source signal is 50 Hz, 25% duty cycle, but the phase is different.

 

Every time I have a rising edge on a boolean signal, I copy the 50 Hz signal on the destination, otherwise, the destination is connected to a blank PFI (=GND). I have no problems with the "Shuttle" and "Brake" groups, but the "SeatSwitch" has a random behaviour...

 

It seems like I cannot copy the SeatSwitch signal, without deactivating a copy of one other signal.

 

I have tried, in a blank VI, to copy or not copy (with the same method) the SeatSwitch signal with a boolean command and it works so I think there is no wiring problem.

 

I have also tried to make the changes in parallel, not with a For loop, but the problem is the same, it works with 2,3,4,5... copies but not with 9... Have you any idea of where my problem come from ?

 

I have been searching all day, any advice is welcome ! Thanks in advance.

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Hi Mattison,

 

It appears as though YannC addressed your issue in this thread.  Please post back if this did not resolve your issue.

David
Applications Engineer
National Instruments


Digital Multimeters
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