Description

The Allen-Bradley 1756-EN2TR is a high-performance EtherNet/IP communication module designed for the ControlLogix platform. It provides seamless integration into industrial automation networks, supporting linear, star, and device-level ring (DLR) topologies. This module facilitates real-time I/O messaging and message exchange, ensuring robust connectivity for complex control systems.

Features

• Dual RJ45 Ethernet ports supporting 10/100 Mbps communication.
• Supports Device-Level Ring (DLR) for media redundancy without external switches.
• Capacity for up to 128 TCP connections and 256 CIP connections.
• Integrated USB port for temporary local configuration and firmware updates.
• Supports multicast tag limit of 32.
• Optimized for real-time control with high I/O packet processing rates.

Applications

• Automotive manufacturing (assembly, welding, and painting lines).
• Water treatment and energy management (SCADA systems, pumping stations).
• Food and beverage packaging and filling equipment.
• Marine and offshore engineering (ship monitoring and positioning systems).

Technical Specifications

Installation Guidelines

• Ensure the ControlLogix chassis is powered down before inserting or removing the module.
• Use shielded Category 5 Ethernet cabling for all network connections to minimize EMI.
• The USB port is for temporary configuration only; do not use in hazardous locations.
• When using older 1756-ENBT modules in the same chassis, avoid "Rack Optimized" communication formats to prevent potential conflicts.
• Ensure adequate ventilation within the cabinet to maintain operating temperatures below 60 degC.

FAQs

How many ports does the module have?

The module features two RJ45 Ethernet ports for network connectivity and one USB port for temporary local configuration.

What is the maximum connection capacity?

The 1756-EN2TR supports up to 256 CIP connections and 128 TCP/IP connections.

Can the USB port be used for permanent communication?

No, the USB port is strictly for temporary configuration and must not be used in hazardous locations.