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1791-8AR Allen-Bradley
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1791-8AR is an Allen-Bradley 1791 Block I/O module providing eight 120 VAC discrete inputs and eight relay-based outputs. Designed for use within Allen-Bradley legacy Remote I/O (RIO) systems-such as PLC-2, PLC-3, PLC-5 or SLC 500 with a 1747-SN RIO scanner-it supplies embedded power, I/O interfacing, signal conditioning, and relay outputs in a compact node. The 1791-8AR facilitates distributed control in applications like machine interfaces, panel-mounted logic termination, and remote discrete I/O points in industrial control systems.
Best Suited For
- Remote I/O implementation in legacy PLC-2/PLC-3/PLC-5 systems
- Integration with SLC 500 controllers via 1747-SN RIO scanner
- Distributed discrete I/O on OEM machinery
- Panel or machine-mounted discrete I/O node in RIO architectures