Introduction
The Allen Bradley 1756-EN2T is a dual-port EtherNet/IP communication module designed for the ControlLogix family. It provides reliable, high-speed network connectivity between controllers, HMIs, drives, and other industrial devices. With support for 64 simultaneous connections, deterministic I/O messaging, and dual RJ45 ports, this module is ideal for complex automation systems that require redundant communication paths, fast data exchange, and robust diagnostics.
Technical Specifications
| Parameter | Specification | Beschreibung |
|---|---|---|
| Module Type | EtherNet/IP Communication Module | High-speed network interface for ControlLogix systems |
| Ports | 2 × RJ45 (10/100 Mbps) | Supports daisy-chain or ring network topologies |
| Protocols Supported | EtherNet/IP, TCP/IP, UDP, DHCP, DNS, SNMP | Industrial and enterprise network compatibility |
| Max Connections | 64 simultaneous connections | Handles multiple controllers, HMIs, and devices |
| I/O Data Capacity | 16,384 bytes | Input and output data for networked devices |
| Update Rate | 1 ms typical | Fast communication for real-time control |
| LED Indicators | STATUS, LINK/ACT, PORT1, PORT2 | Provides diagnostic and network status feedback |
| Power Supply | 5.1 V DC (from backplane) | Powered directly from ControlLogix chassis |
| Current Draw | 1.2 A typical | Power drawn from backplane under normal operation |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) | Suitable for industrial environments |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) | Storage or transport conditions |
| Relative Humidity | 5%–95% non-condensing | Industrial-grade humidity tolerance |
| Shock Resistance | 30 g operational | Complies with IEC 60068-2-27 |
| Vibration Resistance | 5–2000 Hz @ 1 g | Designed for industrial use |
| Dimensions (H × W × D) | 145 mm × 55 mm × 125 mm (5.7″ × 2.2″ × 4.9″) | Fits standard 1756 series chassis |
| Gewicht | 0.45 kg (0.99 lbs) | Lightweight for installation |
Applications
The 1756-EN2T module is used in industrial and manufacturing systems requiring reliable Ethernet connectivity:
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Factory Automation – Connects ControlLogix controllers with HMIs, drives, and sensors.
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Process Control – High-speed, deterministic communication for chemical, food, or pharmaceutical processes.
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SCADA Systems – Integration with remote monitoring and data acquisition.
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Distributed Control Networks – Supports multiple chassis and I/O modules over Ethernet/IP.
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Motion Control Systems – Real-time coordination von drives and servo devices.
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Enterprise Integration – Facilitates connection between plant floor and corporate networks.
Advantages
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Dual-Port Flexibility: Supports daisy-chain, ring, or redundant network configurations.
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High-Speed Communication: 10/100 Mbps ports with 1 ms update rates ensure deterministic control.
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Large Connection Capacity: Up to 64 simultaneous connections for complex automation networks.
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Comprehensive Diagnostics: LED indicators and svontware tools simplify troubleshooting.
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Seamless ControlLogix Integration: Compatible with all standard ControlLogix CPUs and I/O modules.
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Industrial Reliability: Designed for harsh environments with shock, vibration, and temperature tolerance.
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Scalable Architecture: Easily expands to multiple modules for large networked systems.
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Enterprise Connectivity: Supports TCP/IP, UDP, DHCP, DNS, and SNMP for broad integration
Unternehmensinformationen
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