Product Overview

The ALLEN-BRADLEY 1203-GD1 is a Remote I/O Communications Module designed to provide a direct, digital link between Allen-Bradley programmable controllers and any device equipped with a SCANport communication interface -2. As a member of the Bulletin 1203 communications module family, the 1203-GD1 serves as an essential bridge, enabling seamless data exchange between SCANport-enabled products—such as AC drives, soft starters, and motor protectors—and a Remote I/O network backbone -4. This module is a key enabler for system integrators and plant engineers seeking to integrate variable speed drives and other intelligent devices into a cohesive control architecture without requiring extensive re-engineering.

The ALLEN-BRADLEY 1203-GD1 distinguishes itself through its standalone, externally powered design. Unlike direct-fit modules that mount inside a drive enclosure, the 1203-GD1 is housed in a NEMA Type 1 (IP30) enclosure and mounts on a standard 35mm DIN rail, allowing flexible placement within a control cabinet -4-7. It operates on a universal AC power supply (85 to 264VAC), making it suitable for global installations -2. The module features one SCANport port for connection to the drive and one Remote I/O port for connection to the controller network -4. Through its front-panel LED indicators, the 1203-GD1 provides clear visual status of the module health, SCANport communication, and Remote I/O link activity, simplifying commissioning and troubleshooting. This robust and versatile interface module ensures that critical drive data—including speed reference, current feedback, and fault status—is reliably transmitted to the PLC or DCS for precise process control.

Technical Specifications