DI811 ABB Digital Input Module for AC 800M Series

Description

The ABB DI811 Digital Input Module is engineered to provide high-reliability digital input acquisition in distributed control systems. It supports 16 channels for 48 V DC inputs, divided into two isolated groups of eight channels each. Moreover, each group includes a voltage supervision input that generates error signals if supply voltage disappears, ensuring enhanced diagnostics. In addition, every input channel integrates current limiting, EMC protection, LED indication, and optical isolation, which together guarantee stable operation in noisy industrial environments. Therefore, the DI811 is widely trusted in ABB’s AC 800M and 800xA automation platforms for continuous process industries.