The Mitsubishi R60DAI8 is a digital input module designed for use in Mitsubishi FX series PLCs. It provides 8 channels of digital inputs for interfacing with devices such as sensors, switches, and relays. The module allows for high-speed digital signal processing, enabling accurate detection of on/off signals from a variety of industrial devices. It is typically used in applications requiring quick response times for input detection, such as in factory automation, process control, and machinery monitoring.