Allen-Bradley 1747-ASB SLC 500 Remote IO Adapter

The Allen-Bradley 1747-ASB is a SLC 500 Remote I/O Adapter Module that serves as the remote rack interface between SLC 500 chassis and a central PLC controller, enabling Remote I/O communication across distributed control panels and manufacturing lines. It’s designed for expansion, remote rack integration, and replacement of faulty communication modules in industrial automation setups. Key specs include Manufacturer Part Number 1747-ASB, Series SLC 500, Remote I/O (RIO) protocol, and a Blue hose RIO network interface. It supports selectable node addressing and baud rates of 57.6 kbps, 115.2 kbps, and 230.4 kbps, with chassis-mounted mounting in SLC racks. The module offers IP20 protection and an operating temperature range of 0°C to +60°C, and it carries CE, UL, and CSA compliance. Common replacements include Allen-Bradley 1747-SN Scanner Module, 1747-SDN DeviceNet Module, and Siemens ET200 Remote I/O Adapter, reflecting its role in mixed automation environments requiring reliable remote I/O connectivity for scalable control. Applications span distributed control panels, manufacturing lines, material handling, packaging equipment, and process plants where centralized control must interface with remote I/O racks.