Further information for Advantech ADAM-5080-AE -
4-channel counter/frequency module
Function mode: Counter (Up/Down, bidirectional) Frequency
Input frequency: Frequency mode: 0.3 - 1000 Hz Counter mode: 5000 Hz Max.
isolation voltage: 1000 V RMS
Min. pulse width: 500 µs (Frequency mode) , 100 µs (counter mode)
Programmable digital noise filter: 1 - 65000 µs