Product Overview

The Allen-Bradley 1788-EN2DN acts as an intelligent communication gateway that seamlessly bridges a high-speed EtherNet/IP supervisory network with a downstream DeviceNet field-level network. This linking device enables modern ControlLogix and CompactLogix programmable automation controllers to control, configure, and monitor up to 63 legacy DeviceNet nodes without requiring local DeviceNet scanner cards. Plants utilize this module during machine retrofits and phased modernization projects to preserve existing wiring infrastructure while upgrading the upper-tier control architecture. We supply this communication hardware as 100% brand new, original factory-sealed stock to guarantee peak network performance and total physical integrity.

Technical Specifications

The following table summarizes the data capacity, electrical demands, and isolation parameters of the 1788-EN2DN linking device:

Engineering Advantages

• Seamless Legacy Hardware Migration: The module protects your existing capital investments by linking legacy DeviceNet motor starters, drives, and sensor blocks directly into an EtherNet/IP master scanner. You avoid the high cost and extensive labor of rewiring entire production lines during a control room upgrade.

• Streamlined Control Architecture: By handling network conversion locally within the 1788-EN2DN, you free up physical slot space inside the main ControlLogix or CompactLogix chassis. The processor interacts with the device via standard Ethernet messaging, simplifying backplane traffic profiles.

• Comprehensive Quad-Isolation Circuitry: The hardware provides 30V continuous basic insulation across four separate paths: power-to-system, Ethernet-to-system, DeviceNet-to-system, and USB-to-system. This complete electrical isolation suppresses high-frequency transient spikes and prevents destructive ground loops from damaging the central logic controller.

• Simplified Field Diagnostics via USB: An integrated USB port allows field electricians to plug a laptop directly into the face of the linking device. This bypasses the main network infrastructure to grant instant access to local configuration parameters and real-time node error registers.

FAQs

• Does the 1788-EN2DN draw its primary operating logic power directly from the thick/thin DeviceNet trunk cable?

  No. The 1788-EN2DN requires an independent external 24V DC Class 2 or SELV/PELV power supply rated at 150 mA to power its internal logic circuits. It draws a smaller, separate 60 mA current feed from the DeviceNet network connection solely to power the transceiver optocouplers.

• What software tools do engineers use to configure the DeviceNet network mapping through this module?

  Engineers utilize RSNetWorx for DeviceNet to configure the network node mapping, scanlists, and baud rates. Once mapped, Studio 5000 or RSLogix 5000 software manages the upper-tier EtherNet/IP data tags and master communications.

• Can this module handle high-vibration applications like automotive assembly lines or packaging machinery?

  Yes. The ruggedized chassis carries a 5 g operational vibration rating at frequencies between 10 and 500 Hz, alongside an operational shock rating of 30 g. These mechanical tolerances allow the linking device to operate reliably when mounted inside machine-mounted control panels or high-vibration manufacturing bays.