KL1232
The KL1232 from Beckhoff features a 0.2 ms input filter and weighs approximately 55 g. Part of the KL Analog Input Modules series, it supports a nominal 24 V DC range (-15%/+20%) and uses a 4-wire connection. It offers 500 V electrical isolation and edge-triggered pulse expansion.
With two digital inputs, it draws 5 mA and recognizes a logic high from 15 to 30 V. It operates within a temperature range of 0 to 55 °C. It can extend pulses up to 100 ms for reliable detection.