Using PXIe-6672 to send trigger to PXI-6682H using NI sample code

[jwins]

I have a PXI-6682H and a PXIe-6672 card in a PXIe 1075 chassis.  I have an IRIG-B timesource going into the PF1-0 IRIG B connector on the 6682H.  I'm trying to use the 6672 card to route a trigger to the 6682H card to receive an IRIG-B signal and supply a timestamp.  I'm using the example code Time Stamp Trigger.vi (to set the 6682H to receive a trigger via PXI_Trig7 for 6682H PXI slot) and Route Software Trigger.vi (to set device in slot corresponding to the 6672 to PXI_Trig7).  I receive no timestamp.  What gives?  Any help would be appreciated.

[Anthony_F]

Hello jwins,

The PXIe-1075 is a multi-segment chassis and the PXI trigger bus is split between each segment.  The figure in page 17 of the PXIe-1075 user manual (http://www.ni.com/pdf/manuals/372537b.pdf) shows this.

Can you retrieve a time stamp by sending a trigger to the 6682H from a device on the same segment?  If so, you may need to route the trigger bus between segments.

Follow the steps in the knowledge base article titled Routing PXI Trigger Lines Across the Buses of Multisegment PXI Chassis to route the PXI trigger bus to the segment that contains the 6682H card from MAX. 

You can also use VISA in your program to Programmatically Route PXI Trigger Lines Across a Multi Segment PXI Chassis.