Yokogawa F3XD64-3N 64-Channel DC Input Module

The Yokogawa F3XD64-3N is a 64‑channel DC input module for FA‑M3 PLC systems that receives and processes 24 VDC digital input signals from field devices into the control system. It enables high‑density I/O for industrial panels, manufacturing equipment, and process automation, monitoring sensors such as limit switches, proximity sensors, push buttons, and relay contacts. Key specifications include 64 input points, DC input type (sink/source), a rated input voltage of 24 VDC with an operating range of 20.4–26.4 VDC, and a typical input current of about 4.1 mA per point. The module uses photocoupler isolation to protect the FA‑M3 controller and is designed for FA‑M3 base module installation. Common replacements include Yokogawa F3XD64-3F, F3XD64-4N, and F3XD32-3N, reflecting its role in scalable I/O expansion for large automation systems.