It appears in the manuals that the MC41 can accept a Frequency/Direction sensor type and is allowed in the System Layout area of IQAN Design, but you get an "Error: Property not Available" in the application portion. I have tried using an event counter with the high speed DINs (C1 Pins 11 and 12). I have cycle time of the MC41 set to 1ms. The results are inconsistent at best with error in pulse count up to 25% at approximately 200Hz. I tried using PCNT input with the high speed input for direction. It improved, but is still not accurate as the pulse count seems to double and miss counts on direction change. Is this a software bug? Is there another work-around?
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