excitation from external source

[lmd2]

The present system is a PXI chassis connected to Win XP laptop by a PCI bridge, slots 2 through 5 each have a PXI 6254. The software is in LV8.6 reading high-speed voltage output of current transformers (no excitation). We need to allocate some channels to reading accelerometers (that do require excitation). The sensor manufacturer recommended a 16-channel source. 

I saw in properties of a DAQmx task you can set excitation source to 'internal', 'external', or 'none'; and there is an input for 'level'. But I don't see how our 'external' source would even be part of the system, as far as LabVIEW is concerned. 

Will this work? does it need to be a buss-able source? maybe there is a tutorial on this, or someone might set me straight quickly?

thanx

[HeatherBaker]

Hi Lawrence,

Accelerometers are typically read with sound and vibration hardware due to the need for current excitation, filtering, AC Coupling etc. As far as LabVIEW is concerned, you will to create Accelerometer tasks for the data acquisition portion of the code.  This is quite a bit of information to digest- let me know if you have additional questions after reviewing these documents!