ABB DI818 Digital Input Module

Description

The ABB DI818 Digital Input Module is a high-performance, modular digital input unit designed for high-density signal collection and processing in industrial automation control systems. As a 16-channel isolated digital input module, it features two independent isolation groups, each with 8 channels and one voltage monitoring input, ensuring reliable signal handling and cross-channel interference prevention. Each input channel is equipped with current limiting components, EMC protection components, input status indicators, and an optical isolation barrier for enhanced stability and anti-interference performance.

Key technical specifications include an input voltage range of 18-30 V DC, an input current of 6 mA at 24 V DC, and a rated power supply voltage of 24 V DC. The module supports PROFINET interface for high-speed data transmission, and its voltage monitoring input provides channel error signals via the module bus when input voltage is lost, enabling real-time fault detection. Housed in a plastic enclosure, it operates in temperatures ranging from -20 to 60 degrees Celsius, with a jack panel for process-side connections and a compact, modular design for flexible configuration.

Ideal for applications including industrial automation, robot control, and intelligent logistics equipment control, the ABB DI818 is widely used in critical sectors such as power, petrochemicals, rail transit, and intelligent manufacturing, delivering stable, efficient digital signal acquisition for complex industrial environments.