I have a mechanical system using NI PCI-6281 DAQ, and need to duplicate it for expansion. I only need one A/O channel to generate waveforms in the frequency range of 1 to 200 Hz, and up to 4 differential A/I channels. For the maximum working frequency of 200 Hz, I believe the sampling rate at 2000 samples/second would be sufficient.
Considering the cost of PCI-6281 at ~$2100, I would like to replace the card with the options of PCIE-6321 at ~$700 or PCIE-6323 at ~$1000, or even Advantech PCIE-1816 at ~$700. So my questions are:
1. Do I need to re-do the control program developed under LabView, or simply re-configure the channels for the replacement cards?
2. Should I expect any incompatibility issues considering the working frequency range, different slots (i.e. PCI vs. PCIE), etc.?
3. Any better replacement options?
Thanks for your input!!