Reliance 57C416 Remote IO Communications Module

The Reliance 57C416 Remote I/O Communications Module is the AutoMax system’s master interface that links an AutoMax processor to distributed I/O. This M/N 57C416 unit is a compact remote I/O communications module housed in a protective enclosure that plugs into the Multibus backplane of an AutoMax rack, serving as the gateway for Remote I/O data on the network. In AutoMax control architectures, the 57C416 coordinates data flow between the central processor and field devices—sensors and actuators—across the remote I/O network using the AutoMax remote I/O protocol. Typical applications include factory automation setups where distributed I/O must be coordinated by a single AutoMax controller, enabling centralized control with remote sensing and actuation. The module is historically cataloged within Reliance Electric and Reliance AutoMax product lines as a Remote I/O Communications Module, identified by the part number M/N 57C416, and used in legacy automation cabinets that rely on the AutoMax architecture for remote I/O communications.