Hello Anthony, OK - when I saw that synapticad dll wasn't found when I tried to start the IDE - I thought that was due to not having the license yet. I see that's a path issue and that is fixed now; so I can start the IDE. So, even though I have sent in the license request to SynaptiCAD - I shouldn't expect a reply or don't pursue that since it's a dead end unless I want the advanced version? If that's the case I recommend adding a pop-up box to the install stating it isn't necessary to get the license since I thought I needed the eval license to get going. For the RPM sensor I am using - Receiver Output. If the receiver output is enabled (RE low) and A–B > 200mV, then RO will be high. If A–B < –200mV, then RO will be low. If the receiver inputs are open, shorted, or terminated without a signal, RO will be high. The input is RS-485. So, this can be considered a pulse. A counter on rising/falling edges should be enough. 4 samples per second to begin with should be fine; so nothing too extraordinary here. Thanks, John W.
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