Product Details
Overview
The 1756-EN2TK (1756-EN2TK) is a high-performance EtherNet/IP™ communication interface designed for the ControlLogix® platform. The "K" suffix designates this as a conformal-coated module, providing enhanced resistance against harsh environmental factors such as moisture, dust, and chemical contaminants. This module supports high-speed data exchange, bridging, and routing between EtherNet/IP networks and the ControlLogix backplane, making it a critical component for distributed I/O, HMI connectivity, and controller-to-controller interlocking.
Detailed Technical Specifications
-
Network Speed: 10/100 Mbps (Auto-negotiating)
-
Backplane Current (5.1V DC): 1.0 Amp
-
Backplane Current (24V DC): 3 mA
-
Peak Power Dissipation: 5.1 Watts
-
Thermal Output: 21.28 BTU per hour
-
Maximum Ethernet Connections: 256 (Logix) or 128 (TCP)
-
CIP Unconnected Messages: 64–128 (System dependent)
-
Isolation Voltage: 30 Volts (continuous), Basic Insulation Type, tested at 500V AC for 60 seconds
-
Slot Requirements: Single slot (occupies any available slot in 1756 chassis)
-
Environmental Protection: Conformal Coated (K-version) for noxious atmospheres
-
Operating Temperature: 0 to 60 °C (32 to 140 °F)
-
Physical Weight: 1.06 lbs (0.48 kg)
Network Integration and Reliability
The 1756-EN2TK (1756-EN2TK) is optimized for high-demand architectures where system uptime is paramount. It supports a wide array of industrial protocols, including messaging, producer/consumer tags, and distributed I/O control. By utilizing its advanced bridging capabilities, users can access devices on the Ethernet network from ControlNet or DeviceNet via the ControlLogix backplane without the need for additional gateways.
Engineering FAQ
-
What is the advantage of the "K" version over the standard module?The 1756-EN2TK (1756-EN2TK) includes a protective conformal coating on the internal circuitry. This is essential for applications in wastewater treatment, oil and gas, or chemical plants where airborne corrosives could otherwise damage standard electronics.
-
Does this module support Device Level Ring (DLR) topologies?Unlike the 1756-EN2TR, the 1756-EN2TK (1756-EN2TK) has a single RJ45 port and does not natively support DLR ring configurations. It is intended for star or linear topologies unless used in conjunction with an external tap.
-
Can this module handle motion control applications?Yes, it is fully compatible with Integrated Motion on the EtherNet/IP network, supporting high-precision axis synchronization for Kinetix drives.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.