ABB DO840 Digital Output Module

Description

The ABB DO840 Digital Output Module is a high-performance I/O unit designed for the S800 I/O system and ABB’s AC 800M controllers. It provides 16 galvanically isolated digital output channels, delivering reliable 24 V DC signals to actuators, relays, and other field devices. Moreover, the DO840 ensures fast response times and robust diagnostics, making it suitable for demanding industrial automation environments. In addition, its compact DIN-rail design and hot-swap capability simplify installation and maintenance, reducing downtime in mission-critical operations. Therefore, engineers rely on the DO840 for consistent performance and seamless integration into distributed control systems.