The Frequency Meter type is a counter that uses up to 2 fast or regular inputs. The M241 Logic Controller can have up to 4 Frequency Meter type High Speed Counters.
The Frequency meter counter measures the frequency of events. Frequency is the number of events per second (Hz).
The maximum frequency admissible on a fast input is 100 kHz if the bounce filter value is 0.005 ms (default value for configuration). If the bounce filter value is 0.002 ms, the maximum frequency is 200 kHz.
The maximum frequency admissible on a regular input is 1 kHz if the bounce filter value is 0.5 ms. If the bounce filter value is 1 ms, the maximum frequency is 500 Hz.