Route front trigger of PXIe 2593 to backplane for use with PXIe 5251

[WayneR1]

I have a PXIe 1062Q chassis with a number of PXIe 2593 Mux's which are connected to the two inputs channels of a PXIe 5251 Digitizer. What I want to do is to use the trigger on the front of the Mux to close the appropriate switches on the muz and to trigger the start of capture on the Digitizer, is there anyway to do this?

If not is there another way to do what i want?

[M.Kuznetsov]

Hi WayneR1,

Thank you for your question!

In order to route different signals (like triggers) on the PXIe backplane "DAQmx Connect Terminals"

VI should be used:

The source and destination terminals can be on different devices as long as a connecting public bus,

such as RTSI or the PXI backplane, connects the devices.

More detailed information can be found here: http://zone.ni.com/reference/en-XX/help/370469AA-01/lvdaqmx/mxconnectterminals/

Please make sure that you disconnect those routes after running your code.

Once routes has been connected, they will stay connected until you restart the PXIe controller

or use "DAQmx Disconnect Terminals" VI:

More information about "DAQmx Disconnect Terminals" VI: http://zone.ni.com/reference/en-XX/help/370469AA-01/lvdaqmx/mxdisconnectterminals/

I hope that you will find this information useful!

Kind Regards,

[WayneR1]

Thanks for the response.

I did not get the correct number for the digitizer it should have been PXIe 5160.

But

I have tried to connect the 2593 using the "TrigIn" as the source and the "PXITrig0" on the 5160 as the destination using the DAQmx Connect Terminals. I do not get any errors for this connection but when i send a trigger to the 2593 TrigIn terminal my digitizer does not trigger and gives maximum timeout error.

Any ideas what i am doing wrong?

Thanks.

Wayne

[M.Kuznetsov]

Hi WayneR1,

Thank you for a quick reply.

I have checked the datasheet of the PXI 2593 and found out that unfortunately Output and Input Triggers are only accessible from

the front panel of the device. However the PXIe 5160 supports the backplane triggering.

The only solution I can suggest is to connect trigger line with a wire on the front panel.

All the best,

[WayneR1]

OK, thanks.

I will stop looking into why it does not work.

I do have an alternative method it just means i will have to wire the triggers on the Digitizer as well.

Wayne