Advantech APAX-5080-AE 4/8-ch High Speed Counter Module

Supports multiple operating modes: 1.Up mode 2.Up/Down mode 3.Pulse/Direction mode 4.A/B Phase mode 5.Frequency mode
4 or 8 counter channels depends on operating modes
32-bit counter range with 1 bit overflow/underflow
1 MHz counter frequency
4 digital input channels with counter gate functionality
4 digital output channels with counter alarm output functionality
Over voltage, short circuit and thermal protection design