Routing the PXI Controller 'SMB trigger port' to a PXIe-6674T timing and synchronization module for 'SMB to SMA' input / output.

[micgraph]

I'm trying to get some verification from NI gurus (…or Emerson) regarding the capabilities of the PXIe-6674T timing and synchronization module while using the following LabView libraries:

* NI Sync Library API

* NI DAQmx Library API

For most of the NI-Sync vi's, the timing and synchronization functions work fine for routing and generating a signal or trigger event. However, I really need to verify/clarify the following specific issues:

1. How do you setup the PXIe-6674T to receive (or send) a trigger source using NI-Sync through the ‘PXIe-6674T SMA terminals’ TO the ‘SMB trigger port (on the Embedded Controller - ex: PXIe-8861/8881)’?

     2. My understanding is that DAQmx API and the NI-Sync edge detection VI's are not supported on the PXIe-6674T. Is this correct?

     3. How do you setup the PXIe-6674T to simply route the SMB trigger port to the SMA terminals?

Any help in verifying what function 'are' OR 'are not' supported by the PXIe-6674T module would be great!

Especially 'routing the SMB trigger port to the SMA terminals'  and  'receiving/detecting an external trigger using the PXIe-6674T'.

Note: My external trigger source is a function generator. 

[santo_13]

Before we get there, why would you want to route the controller's trigger port to 6674T? can you describe in detail your application?

[micgraph]

Santo_13 - Thanks for the quick reply. It is an available port that we have the appropriate cables. The scope of routing the signal to (...or from) that port is simply to acquire or distribute the trigger signal. Also, to fully characterize the  PXIe-6674T module it would be good to know whether or not the routing is possible. To add some detail to the object, we will be generating a PPS signal to two different instruments. There are other ways to reach the objective for sure, but knowing that it cannot be used with this module is better than assuming (...at least while simply using the NI-Sync API).

[santo_13]

You can try using the DAQmx Connect Terminals API to route from the SMB connector to 6674T's PXI Trig line or the front end.

https://www.ni.com/docs/en-US/bundle/ni-daqmx-labview-api-ref/page/lvdaqmx/mxconnectterminals.html

Here is an article on using the SMB trigger line,

https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019Uu6SAE&l=en-US