Digital I/O module LM-DI

4 digital inputsDIN rail

The digital inputs of HiTec Zang ASs may be used for frequency measurement in addition to their use for the pure recording of binary conditions (in/out). This slide-in module additionally provides on every socket (Pin1) 24 V DC for supply to a connected sensor (total load max. 300 mA/module). • Frequency measurement • Edge detection • Counting input • Period length measurement • Pulse duration measurement • Inputs with connectible NAMUR-compliant level detection system • Status LED for each channel, displays the binary condition or errors • Galvanic separation between inputs and bus • Activation in accordance with PELV (protected extra low voltage) • Signal : Input level 24 V (can be switched to a NAMUR-compliant level) and assignment in accordance with NAMUR NE28 • Connection type : 3-pin M8 socket • Digital counting function : 32-bit • Frequency measurement : ≤ 100 kHz • For the interrogation of : proximity sensors, switch contacts, fill level switches, pressure switches, digital status signals of devices etc.