Allen-Bradley 1747SN E12 Remote I/O Scanner Series E

The Allen-Bradley 1747SN E12 Remote I/O Scanner Series E is the master device in the SLC 500 remote I/O family. It resides in the controller rack and coordinates data exchange with remote I/O racks over the standard blue-hose remote I/O link, enabling deterministic polling of connected I/O modules across distributed racks. In use with SLC 500 controllers, the 1747SN acts as the interface between the processor and remote I/O drops, handling addressing and data transfer to and from remote racks as configured in the installation guides. The Series E variant denotes a specific revision in the 1747-SN line and is designed for compatibility with the legacy 1747 I/O ecosystem, including the cabling and adapters used in Rockwell Automation systems. Typical applications include manufacturing lines, packaging operations, material handling, and automated systems where centralized control must extend to field devices located in separate racks. The 1747SN E12 provides a proven, field-tested scanner option that integrates with Rockwell Automation’s installation and programming workflows for SLC 500 networks.