Mitsubishi AJ65BTB2-16D Digital Input I/O Module for MELSEC Series

The Mitsubishi AJ65BTB2-16D (AJ65BTB2-16D) is an input I/O module designed for use within Mitsubishi Electric MELSEC series control systems. This legacy automation module provides digital input processing capabilities, including high-speed counter input functionality rated for operation up to 50 kHz. Engineered to interface directly with programmable controllers, the unit captures digital signals and pulse inputs to support precise event detection, position monitoring, and counting applications across industrial automation environments. As an equivalent replacement option for the FX1HC configuration, it integrates smoothly into existing MELSEC-F machinery setups, enabling operators to maintain established automated lines without extensive hardware redesigns. The compact design allows convenient installation inside standard control cabinets alongside complementary I/O hardware and power distribution equipment. Typical applications include production line monitoring, high-speed pulse acquisition, parts counting, and general digital signal interfacing in manufacturing plants, packaging systems, and material handling installations. Now discontinued by the manufacturer, this genuine Mitsubishi spare part provides reliable replacement support for existing industrial control panels.