1756-DH485 | Allen-Bradley Communication Module

Description 

The 1756-DH485 is a ControlLogix communication module that provides an interface between the ControlLogix system and devices on a DH-485 network. It enables data exchange with legacy PLCs, operator interfaces, and SLC 500 systems.

Technical Specifications 

Information About 1756-DH485

The Allen-Bradley 1756-DH485 is a ControlLogix communication module designed to interface with Data Highway 485 (DH-485) networks, enabling seamless communication between ControlLogix systems and legacy devices such as SLC 500, MicroLogix controllers, and PanelView terminals. Equipped with two independently configurable DH-485 channels, it supports message routing across multiple networks and chassis, facilitating integration in complex industrial automation environments.

Key Features:

• Product Type: Communication Module

• Platform: ControlLogix

• Network Protocol: Data Highway 485 (DH-485)

• Communication Channels: 2 x DH-485 Channels

• Input Voltage: 24 VDC

• Backplane Current Load: 850 mA @ 5.1V DC; 1.7 mA @ 24V DC

• Power Dissipation: 4.5 W

• Thermal Dissipation: 15.4 BTU/hr

• Isolation Voltage: 50V (tested to withstand 750V DC for 60 seconds)

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

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

• Relative Humidity: 5% to 95% non-condensing

• Enclosure Type Rating: None (open-style)

• Certifications: UL Listed, CSA Certified, CE Marked

This module is ideal for applications requiring integration of ControlLogix systems with DH-485 networks, providing reliable communication and data exchange in industrial settings.