The Allen-Bradley 1747-ASB, also cataloged as the 1747-ASB Remote I/O Adapter Module, operates as a dedicated hardware component for transferring remote I/O data between SLC 500 chassis systems and Universal Remote I/O networks.

Model Configuration

The 1747-ASB is a single-slot SLC 500 I/O adapter module designed for Universal Remote I/O communication. The module supports 57.6, 115, and 230 kilobits/second communication rates and connects remote I/O devices through Belden 9463 cable.

Hardware Specifications

Remote I/O Network Communication

The 1747-ASB module provides Remote I/O communication between an SLC 500 processor system and distributed I/O devices. The adapter manages remote rack data exchange through Universal Remote I/O protocol while maintaining communication with the SLC 500 backplane.

The module supports selectable communication rates of 57.6, 115, and 230 kilobits/second. Network performance depends on cable length, node configuration, and Remote I/O system architecture.

Industrial Control Network Integration

The 1747-ASB uses Allen-Bradley Remote I/O communication technology for distributed control architectures. The module supports standard and extended node addressing, allowing connection of multiple remote I/O racks within the configured network.

The adapter module uses backplane bus communication to exchange local chassis data with the SLC 500 system. Proper node addressing, cable termination, and communication parameter configuration are required for correct operation.

Ordering Information

• 1 x Allen-Bradley 1747-ASB Remote I/O Adapter Module
• 1 x Module housing assembly
• 1 x 6-Pin Phoenix communication connector
• Remote I/O cable and compatible SLC 500 chassis supplied separately

Field Installation Guidelines

Module Mounting

• Install the 1747-ASB module into a compatible SLC 500 chassis slot.
• Remove system power before module installation or removal.
• Verify module seating and connector engagement before startup.

Remote I/O Wiring

• Use Belden 9463 cable or equivalent cable type for Remote I/O communication.
• Maintain cable separation from high-voltage and high-current wiring.
• Confirm network node addressing before connecting remote devices.

Communication Setup

• Configure communication rate according to the Remote I/O network design.
• Verify standard or extended node addressing settings.
• Check cable termination and grounding practices during commissioning.

Frequently Asked Questions

• What function does the 1747-ASB perform?

The 1747-ASB operates as a Remote I/O Adapter Module that transfers I/O data between SLC 500 systems and Universal Remote I/O networks.

• Which communication rates are supported?

The module supports 57.6, 115, and 230 kilobits/second Remote I/O communication rates.

• What cable type is specified for this module?

The recommended Remote I/O cable type is Belden 9463 for network communication connections.

• How many slots can the module support?

The adapter supports remote racks with up to 30 slots according to the configured Remote I/O architecture.

• How many nodes are supported?

The module supports 16 standard nodes and up to 32 extended nodes within the Remote I/O network.

• What backplane current does the module require?

The 1747-ASB requires 375 mA from the 5 VDC SLC 500 backplane supply.

• What connector type is used?

The module uses a 6-Pin Phoenix Connector for Remote I/O communication wiring.

• Can the module be installed while the chassis is powered?

The module should not be inserted or removed under power unless the system configuration specifically supports that procedure.