PLC is a L24ERQB1B. Embedded inputs are not high speed. RPI for these inputs are currently set to 20 milliseconds and program scan time is > 1.5ms and <2ms. If I drop the RPI to 1.5 milliseconds for the inputs ensuring each scan sees a fresh update from the input card, how do I go about figuring out what the maximum number of pulses that one of these inputs can detect reliably in a given second?