EtherNet/IP Bridge 1756-EN2TK Allen Bradley Conformal

Product Overview

The Allen-Bradley 1756-EN2TK is a conformal-coated EtherNet/IP communication module for ControlLogix systems. It provides a 10/100 Mbps copper Ethernet interface supporting 128 TCP and 256 CIP connections, with enhanced protection for harsh environments.

Key Specs

• Communication rate: 10/100 Mbps auto-sensing
• Connections: 128 TCP, 256 CIP (Logix)
• Ports: 1 RJ45 Category 5, 1 USB 1.1 configuration port
• Current draw: 1 A @ 5.1 V DC, 3 mA @ 24 V DC
• Power dissipation: 5.1 W
• Isolation voltage: 30 V continuous, type tested at 980 V AC for 60 s
• Conformal coating: Yes, for corrosive environments

Why Choose This

• Conformal coating extends service life in harsh industrial atmospheres
• Supports messaging, distributed I/O, and integrated motion on EtherNet/IP
• USB port enables local configuration and firmware updates
• Installs in any slot of standard 1756 chassis

Common Questions

• What does the K suffix mean? K indicates conformal coating for protection against moisture and corrosive elements.
• How many connections does it support? 128 TCP connections and 256 CIP connections.
• Is it compatible with redundant systems? Yes, it supports ControlLogix system redundancy configurations.

Mounting Steps

1. Power down the chassis and insert the module into any available slot.
2. Connect the RJ45 port to the EtherNet/IP network using Cat5 or better cable.
3. Set the IP address via BOOTP/DHCP or the USB configuration port.
4. Configure the module in Studio 5000 Logix Designer.
5. Verify network status LEDs indicate active communication.

Buying Advice

• Choose 1756-EN2TK for corrosive environments; select 1756-EN2T for standard installations.
• For dual-port or ring topology applications, consider the 1756-EN2TR.
• Confirm chassis power supply capacity: 1 A at 5.1 V DC per module.