1203-GD1 Allen Bradley

1203-GD1 Allen BradleyAllen Bradley 1203 GD1 Communication Module The 1203 GD1 is a versatile Allen Bradley communication interface module designed to bridge devices equipped with a SCANport communication port to a Remote I O network. This module features dual portsSCANport and Remote I Othat operate concurrently on a single compact device, enabling seamless communication between drives, controllers, and I O devices. Unlike traditional modules that require installation

Allen-Bradley 1203-GD1 Communication Module

The 1203-GD1 is a versatile Allen-Bradley communication interface module designed to bridge devices equipped with a SCANport communication port to a Remote I/O network. This module features dual ports—SCANport and Remote I/O—that operate concurrently on a single compact device, enabling seamless communication between drives, controllers, and I/O devices.

Unlike traditional modules that require installation within a PLC chassis, the 1203-GD1 is DIN rail-mountable, offering a standalone configuration that simplifies system architecture and saves rack space. It requires an external power supply rated between 85 to 264 VAC, operating at 45–63 Hz, with a maximum input current of 35 mA. The SCANport output supports a 60 mA DC load.

Front Panel Features

• 1 x SCANport connector

• 1 x Remote I/O connector

• Power terminal block

• LED Indicators:

  • Fault (Red) – Indicates module fault

  • SCANport STS, Health, Remote I/O ACT, Remote STS (Green/Amber) – Provide operational and communication status (Amber for earlier firmware versions)

Compatible SCANport Devices

The 1203-GD1 supports a wide range of Allen-Bradley products via the SCANport interface, including:

• 1305 AC Micro Drive

• 1336 Series: IMPACT™, PLUS, PLUS II, FORCE™, REGEN, SPIDER

• 1394 AC Multi-Axis Motion Control System

• SMC Dialog Plus™, SMP-3 Smart Motor Protector

• 1397 Digital DC Drive

• 1557 Medium Voltage Drive

• 2364F Regenerative DC Bus Supply

Compatible Remote I/O Controllers

For Remote I/O communication, the module integrates with:

• Logix5550

• PLC-2/30 (with SD2), PLC-3

• PLC-5 Family: Classic (e.g., PLC-5/10 w/ 1771-SN), Enhanced (PLC-5/20 to PLC-5/250)

• SLC 500 with 1747-SN Remote I/O Scanner

• Compatible scanner and sub-scanner modules

Configuration and Environmental Specifications

• DIP Switches: Located at the base to configure operation and enable termination resistors for Remote I/O networks

• Operating Temperature: 0°C to 50°C (32°F to 122°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Relative Humidity: Up to 95%, non-condensing

• Enclosure: NEMA Type 1

• Dimensions: 76 x 45 x 123 mm

• DIN Rail Mount: Standard 35 x 7.5 mm

The Allen-Bradley 1203-GD1 is a compact, field-mountable solution ideal for applications that demand communication between legacy Allen-Bradley drives and modern or distributed Remote I/O systems. With robust electrical and environmental ratings, it ensures reliable performance in demanding industrial environments.