Industrial NCIS02 Network Interface Slave Module

NCIS02 is a Bailey/ABB Network 90 control I/O slave module that functions as the network interface slave within ABB's Network 90 and Infi90 distributed control systems. It acts as a remote I/O point on the network, allowing the master controller to read inputs and drive outputs from field devices without direct wiring to the central controller. As part of the Bailey control family, NCIS02 is designed to be installed in a Bailey/ABB cabinet or rack alongside other Network 90 modules and communicates over the Network 90 backbone using Bailey's slave protocol. The module is referenced in official Bailey Infi90 documentation as NCIS02, a control I/O slave module that supports the networked integration of I/O points into process control tasks. In practice, it is used to extend the reach of the control system, enabling distributed automation in manufacturing environments, power plants, and process facilities that rely on ABB's Network 90 / Infi90 architecture. The NCIS02 is one of several Network 90 I/O modules designed to interface with Master modules to perform digital I/O operations in real time, helping administrators scale control systems while centralizing logic in the master processor.