1771-ASB/E Product datasheet 

1771-ASB/E Functional Description 

The Allen-Bradley 1771-ASB/E Remote I/O Adapter Module is a Universal Remote I/O Adapter Module designed for the PLC-5 system. This module serves as a critical communication bridge, enabling a central processor to interact with I/O modules housed in a remote 1771 chassis over a single coaxial link. A primary function of the module is to facilitate distributed control, allowing I/O points to be placed closer to field devices.

A key feature of the 1771-ASB/E Series E PLC Module Allen-Bradley is its support for multiple communication rates, including 57.6, 115, and 230 Kbps, allowing for flexible network configuration. It can transmit data over distances up to 10,000 feet at lower speeds, providing significant installation flexibility. The module also incorporates diagnostic indicators for Active status, Adapter Fault, and I/O Rack Fault, which streamline troubleshooting and enhance system maintainability.

The advantages of implementing the AB PLC 5 Remote I/O (RIO) Adapter Hardware 1771-ASB/E are substantial, leading to reduced wiring costs, faster installation, and lower maintenance expenses. By enabling a distributed I/O architecture, it minimizes the amount of long-run field wiring required. Furthermore, the module offers enhanced performance with faster backplane scanning, which optimizes the system's overall scan time and efficiency.

In summary, the  Remote I/O Adapter Module ROCKWELL 1771-ASB/E provides a robust and reliable solution for extending the reach of a PLC-5 control system. Its ability to create a distributed I/O network with robust diagnostics makes it a vital component for scalable industrial automation, solidifying the operational role of the Allen Bradley PLC-5 SERIES 1771-ASB/E.