Binary Input Module CBI 20 ABB Symphony Control Interface

Description

The ABB CBI 20 is a robust binary input module engineered for use within the Symphony DCS (Distributed Control System) architecture. It supports fast and accurate signal acquisition from field devices such as switches, relays, and sensors. With 32 inputs divided into two independent supply groups, the module ensures reliable signal separation and enhanced fault tolerance. Moreover, the CBI 20 offers 1 ms time resolution for event detection, making it ideal for applications requiring precise sequence-of-events logging. In addition, its integrated module diagnostics and configurable filter times improve system reliability and reduce false triggering. The module is DIN-rail mountable and supports redundancy configurations for critical systems. Therefore, it’s widely adopted in power generation, oil and gas, and process automation environments where input integrity and timing accuracy are essential.