Bailey IMDSI02 Digital Input Slave Module

Bailey Bailey IMDSI02 is a 16-channel Digital Slave Input Module built for the INFI 90 distributed control system. It functions as the field-side interface that brings sixteen discrete digital signals from sensors, switches, and other digital devices into the INFI 90 master network for real-time processing. As a Digital Slave Input Module, the IMDSI02 resides on the INFI 90 slave expander bus, delivering synchronized input data to the controller and enabling scalable I/O expansion within an existing Bailey INFI 90 installation. Marketed under ABB Bailey as IMDSI02, this unit supports a dedicated digital input pathway in systems that require multiple independent input points while preserving the INFI 90 timing and data integrity. Typical applications include manufacturing automation, process monitoring, equipment interlocks, and safety circuits where sixteen separate input signals must be read by the control logic. Each channel provides an individual input stream, allowing precise detection of states such as sensor activation or switch closure across the controlled process. The IMDSI02 is designed to integrate with other INFI 90 modules and configurations, enabling straightforward expansion of digital input capability without reconfiguring the central controller architecture.