The MDE Digital Input Modules series is designed for 24 VDC signal acquisition in MULTICONTROL PLC systems and provides 16 digital input channels per module.
In the provided material, the series includes versions with galvanic isolation between the inputs and PLC logic, LED status indication for each channel, and selectable response timing through variants with approximately 10 ms or 1 ms input delay. The modules are specified for nominal 24 VDC operation, with defined minimum and maximum input voltage limits, a typical switching threshold around 12 VDC, and input status transfer through the CPU on change. They are intended for use across a wide range of application slots in MULTI, MIDI, and M264 rack systems, subject to stated slot limitations in certain expansion configurations. Overall, the MDE series is built for reliable DC input interfacing in modular PLC installations that require isolated signal processing, channel-level indication, and defined switching behavior.