Digital input unit

High-density DC input interface module designed for signal acquisition in OMRON CJ1-series programmable logic controller (PLC) systems. It operates by converting 24 VDC ON/OFF signals from field devices—such as limit switches, proximity sensors, pushbuttons, and photoelectric eyes—into low-voltage internal logic signals across 16 opto-isolated input channels. Featuring a removable screw terminal block (SL configuration) for quick wiring and maintenance, fast switching response times, and status LEDs for channel troubleshooting, it enables accurate, noise-immune input monitoring for automated industrial processes.