03-30-2015 10:42 AM
Hello,
I'd be grateful for some help with my case. I'm building a VI for acquisition of multiple signals from thermocouples. My hardware is NI PXIe-1073 chassis with PXIe-4353 module to read the signals.
The problem is that I want to use an Analog Edge trigger for the start of the measurement but it is unavialable to choose in the DAQ Assistant properties window (I have only None and Digital Edge to choose form). I also tried to do the same with DAQmx functions but I got the Error which says that I can only choose Digital Edge Trigger or None.
The hardware (PXIe-4353) does seem to support Analog Triggering: http://zone.ni.com/reference/en-XX/help/370471W-01/cdaqmxsupp/pxie-4353/ or am I mistaken ?
Also I want to note that I currently use hardware simulation and not the actual hardware - can this be the reason?
03-31-2015 03:46 AM - edited 03-31-2015 03:48 AM
Dear pancarlos,
Unfortunately, the hardware does not support analog triggering, as stated in this thread. If that is necessary in your application, you might want to consider adding another PXI card to the system that does trigger on analog input, and use the trigger lines to start your PXIe-4353.
Regards:
03-31-2015 07:46 AM
Thank you kindly for this reply. I'm now decided what to do next 🙂