Allen-Bradley 1747-ASB Remote I/O Adapter Module for SLC 500

Overview

The Allen-Bradley 1747-ASB Remote I/O Adapter Module is an I/O communication module from the SLC 500 family, engineered to provide a communication, or comm, channel that runs between an I/O scanner and the chassis it controls. In distributed control installations, the Allen-Bradley 1747-ASB lets a SLC 500 processor located in one chassis communicate with I/O located in remote chassis, allowing plant engineers to spread field I/O across a machine or process while keeping the control logic in a single location. As an OEM-qualified spare part, the Allen-Bradley 1747-ASB is an essential item in the spares inventory of any facility operating Allen-Bradley SLC 500 control systems.

Engineering Design

The Allen-Bradley 1747-ASB is a single-slot module that installs directly into the backplane of a SLC 500 chassis. It operates as an adapter on the Remote I/O network: the adapter sits in the remote chassis, while a scanner module in the processor chassis controls the network. When the module is installed and addressed correctly, the processor is able to read inputs from and write outputs to the remote chassis as if the I/O were local, which simplifies both programming and troubleshooting. The module is a drop-in replacement for existing installations, and it is listed with the 1746-ASB as a compatible alternative part number, which gives maintenance teams flexibility when sourcing replacements for legacy systems.

Key Features

• Remote I/O adapter module from the Allen-Bradley SLC 500 family
• Provides the communication channel between an I/O scanner and remote I/O chassis
• Single-slot backplane installation for fast field replacement
• Compatible alternative listed: 1746-ASB
• Supported by Allen-Bradley SLC 500 documentation and programming tools
• Sourced as genuine, tested spares for legacy installed-base support

Industrial Applications

• SLC 500 control systems with distributed field I/O
• Machine and process lines where remote chassis are mounted close to field devices
• Oil and gas, water, power and general manufacturing plants in Oman and the GCC
• Upgrade and repair programmes for legacy Allen-Bradley installations

Technical Specifications

Why Seven Star LLC

Seven Star LLC supplies genuine and tested Allen-Bradley automation spares to industrial customers across Oman and the wider GCC region. Every Allen-Bradley 1747-ASB we supply is checked and matched against the catalog number before dispatch, and our team helps you confirm compatibility with your SLC 500 installation before you order. Where an exact match is not in stock, we source it through our verified supply network rather than offering substitutes without approval.

FAQ

Compatibility & Integration

The 1747-ASB is part of the Allen-Bradley SLC 500 family, and it is designed to work with the SLC 500 chassis, processors and programming tools used throughout that family. Because the module appears to the processor as a standard backplane device, no special programming is required beyond the normal configuration of the Remote I/O network, which keeps commissioning time short when the module is installed in an existing system.

When replacing an adapter in a running plant, the maintenance team simply removes the failed module, installs the spare into the same slot and restores the network address. The module works with the same documentation, spare parts and engineering practices that already exist in plants operating SLC 500 systems, which is why the 1747-ASB remains one of the most requested remote I/O spares for legacy Allen-Bradley installed base.

Ordering Information

To order the Allen-Bradley 1747-ASB from Seven Star LLC, quote the catalog number 1747-ASB together with the quantity you require. Our team confirms availability, pricing and delivery to your site in Oman or anywhere in the GCC, and we can advise on the 1746-ASB alternative when stock position makes it the faster option for your plant.