• Allen-Bradley 1785-ENET
  • Allen-Bradley 1785-ENET
  • Allen-Bradley 1785-ENET
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Allen-Bradley 1785-ENET PLC-5 Ethernet Interface Module

Allen-Bradley 1785-ENET PLC-5 Ethernet Interface Module

The Allen-Bradley 1785-ENET is a specialized communication interface module designed to provide Ethernet/IP connectivity to PLC-5 programmable controllers. This module acts as a sidecar unit, mounting directly to the side...

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SKU: 1785-ENET
Vendor: Allen-Bradley
Category: Ethernet Interface Module
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The Allen-Bradley 1785-ENET is a specialized communication interface module designed to provide Ethernet/IP connectivity to PLC-5 programmable controllers. This module acts as a sidecar unit, mounting directly to the side of a PLC-5 processor to facilitate high-speed data exchange over standard Ethernet TCP/IP networks.

Features

  • Provides Ethernet/IP communication capabilities for Enhanced PLC-5 processors.
  • Direct physical attachment to the left side of the PLC-5 processor via a 62-pin connector header.
  • Supports 10/100 Mbps data transmission speeds with auto-negotiation.
  • Equipped with an RJ45 Ethernet port for standard network integration.
  • Integrated status indicators (STAT, 100M, 10M) for real-time link and activity monitoring.
  • Supports dual-link capability when used with specific PLC-5 Ethernet-enabled controllers.

Applications

  • Automotive Production: High-speed coordination between multiple controllers in powertrain and paint lines.
  • Material Handling: Routing and tracking for baggage, cargo, and parcel distribution systems.
  • Water Treatment: SCADA communication link for municipal water and wastewater facilities.
  • Metals Production: Real-time control for metal forming and casting processes.
  • Food & Beverage: Monitoring of fermentation and brewing processes in large-scale facilities.

Technical Specifications

Model 1785-ENET
Communication Protocol Ethernet TCP/IP
Interface 8-pin RJ45
Backplane Current 1.0 A @ 5V DC
Power Dissipation 5 W
Heat Dissipation 17.06 BTU/hr
Isolation Voltage 50V
Wiring Category 2 (on communication ports)
Temperature Code T5

Installation Guidelines

  • Power Down: Ensure all power to the 1771 I/O chassis and the PLC-5 controller is disconnected before installation to prevent memory loss or processor faults.
  • ESD Handling: Use standard electrostatic discharge (ESD) precautions when handling the module to prevent damage to internal circuitry.
  • Connector Header: Snap the 62-pin connector header into the mating connector on the right side of the 1785-ENET module.
  • Mounting: Align the connector header with the mating port on the left side of the PLC-5 processor. Press firmly to seat the connection and secure the assembly using the provided mounting screws.
  • Compatibility: Verify the Series and Revision of your PLC-5 processor against the 1785-ENET compatibility matrix to ensure proper operation.

FAQs

What is the 1785-ENET?

The Allen-Bradley 1785-ENET is a sidecar module designed to provide Ethernet communication capabilities to Enhanced PLC-5 processors.

What is the 1785-ENET connection type?

The module mounts directly to the left side of a PLC-5 processor using a 62-pin header and provides an RJ45 connector for 10/100 Mbps Ethernet communication.

What indicates a faulty 1785-ENET setup?

The module status LED (STAT) will flash an error code 37 if the attached PLC-5 processor is not compatible with the module.

Can I use two cards in one PLC?

No, Rockwell Automation supports only one 1785-ENET card per processor. For dual-subnet requirements, consider using a processor with built-in Ethernet.