Allen-Bradley 1747-DCM Direct Communication Module

Allen-Bradley 1747-DCM Direct Communication Module provides a dedicated Remote I/O (RIO) link between an SLC 500 controller and expansion chassis or modular SLC 500 units, enabling direct, distributed data exchange within a Rockwell Automation SLC 500 system. In typical backplane configurations, one 1747-DCM is supported per fixed SLC 500 controller in a 2-slot expansion, allowing the controller to interface with expansion or remote I/O segments without separate gateways. This Catalog Number 1747-DCM is used to connect the SLC 500 controller to supervisory networks via the RIO Link for distributed processing, making it suitable for applications that require coordinated data exchange across multiple chassis or I/O blocks in legacy Allen-Bradley automation environments.