The Mitsubishi FX2N-1HC is a high-speed counter special function block designed to expand the capabilities of the MELSEC FX series PLCs, including the FX2N, FX3U, and FX3G. This single-channel module is engineered for applications requiring precise and rapid counting of pulse signals, such as those from rotary encoders or proximity sensors. It can handle high-frequency inputs up to 50 kHz, making it ideal for tasks like positioning control, length measurement, and speed monitoring in various industrial automation systems. The FX2N-1HC provides versatile counting modes, including single-phase and two-phase inputs, and supports different input voltage levels, offering flexibility and high performance for demanding control applications.