1756‑EN4TR | Allen‑Bradley ControlLogix Gigabit EtherNet/IP Communication Module
Part Number: 1756‑EN4TR
Manufacturer: Allen‑Bradley / Rockwell Automation
Series: 1756 ControlLogix
Type: Gigabit EtherNet/IP Interface Module
Lifecycle Status: Active
The 1756‑EN4TR is a high‑performance gigabit‑speed EtherNet/IP communication interface module for the ControlLogix platform. It delivers high‑speed industrial network connectivity for ControlLogix controllers, supporting large‑scale I/O, CIP motion control, network redundancy and CIP security functions. Installed in standard 1756 racks, it enables controller communication with remote I/O, HMI, variable‑frequency drives, servo systems and other EtherNet/IP field devices.
Core Communication Specifications
- 4‑port RJ45 copper gigabit Ethernet interface (10 Mbps / 100 Mbps / 1000 Mbps auto‑negotiation)
- Maximum 512 TCP connections for host and field device communications
- Supports up to 256 CIP motion axes over EtherNet/IP for complex multi‑axis motion applications
- Supported network topologies: Star, Linear, DLR (Device Level Ring), PRP (Parallel Redundancy Protocol) for network fault‑tolerance
- Built‑in CIP Security for industrial communication integrity and confidentiality protection; supports SNMP network management
Key Product Features
1. Gigabit High‑Speed Transmission & Redundancy Support
Gigabit bandwidth reduces data transmission latency for high‑density I/O and multi‑axis motion systems. DLR and PRP redundancy mechanisms ensure network continuity during cable or port failure, minimizing production downtime for critical automation systems.
2. CIP Security Function
Native CIP security implementation encrypts and authenticates EtherNet/IP communications, defending industrial control networks from unauthorized access, ideal for smart factory and high‑security‑requirement projects.
3. Full ControlLogix Platform Compatibility
Works with all ControlLogix 5570 / 5580 series controllers. Occupies one single slot in standard 1756 chassis (1756‑A4, A7, A10, A13). Supports remote distributed I/O, programming download, HMI data exchange and motion control traffic simultaneously, configured within Studio 5000 Logix Designer software.
4. Comprehensive Status Diagnostics
Front‑panel multi‑segment LED indicators display link status, network activity, module fault and communication health status for rapid on‑site troubleshooting. Hot‑swap capable for replacement without powering down the ControlLogix rack.
5. Electrical Ratings
- Backplane current draw: 1.2 A @ 5.1 VDC; 3 mA @ 24 VDC
- Maximum power dissipation: 6.1 W (20.8 BTU/hr)
- Isolation: Ethernet ports to ControlLogix backplane reinforced isolation
Environmental Specifications
- Operating temperature: 0 °C ~ +60 °C
- Storage temperature: -40 °C ~ +85 °C
- Humidity: 5 %‑95 % non‑condensing
- Certifications: cULus, CE, ATEX, IECEx; suitable for Class I Division 2 hazardous‑location installations
- Conformal coated variant: 1756‑EN4TRK; wide‑temperature XT variant: 1756‑EN4TRXT available for harsh environments
Typical Industrial Applications
Automotive assembly lines, large packaging production lines, material handling systems, process control plants, smart factory automation, projects requiring multi‑axis CIP motion control, and facilities needing high‑reliability, secure gigabit EtherNet/IP network communications.
Condition Remark Template
✅ New Original: Factory‑sealed genuine Rockwell module, original packaging, official 1‑year manufacturer warranty.
⚙️ Used / Surplus Fully Tested: Pre‑owned unit, complete functional testing performed, cleaned and inspected; test report available upon request.
Listing Title & Short Summary
Listing Title: Allen‑Bradley 1756‑EN4TR ControlLogix Gigabit EtherNet/IP Communication Module, CIP Security, DLR PRP Redundancy
Short Brief:
1756‑EN4TR high‑performance gigabit EtherNet/IP interface module for ControlLogix PAC. 4‑port RJ45, supports 512 TCP connections, 256 motion axes, DLR/PRP redundancy and CIP security. Used for high‑speed remote I/O, HMI and multi‑axis motion industrial networks.
eBay / Amazon Ready Bullet Points
- Part Number: 1756‑EN4TR, ControlLogix Gigabit EtherNet/IP Module
- 4× RJ45 copper ports, auto‑negotiate 10/100/1000 Mbps speed
- Up to 512 TCP connections, supports maximum 256 CIP motion axes
- DLR (Device Level Ring) and PRP parallel redundancy protocol supported
- Native CIP Security for secure industrial EtherNet/IP communication, SNMP supported
- Hot‑swappable, compatible with ControlLogix 5570 / 5580 controllers
- Fits standard 1756 chassis, configured via Studio 5000 Logix Designer
- Conformal coated:1756‑EN4TRK; wide temp XT:1756‑EN4TRXT offered separately
Part Number: 1756‑EN4TR
Manufacturer: Allen‑Bradley / Rockwell Automation
Series: 1756 ControlLogix
Type: Gigabit EtherNet/IP Interface Module
Lifecycle Status: Active
The 1756‑EN4TR is a high‑performance gigabit‑speed EtherNet/IP communication interface module for the ControlLogix platform. It delivers high‑speed industrial network connectivity for ControlLogix controllers, supporting large‑scale I/O, CIP motion control, network redundancy and CIP security functions. Installed in standard 1756 racks, it enables controller communication with remote I/O, HMI, variable‑frequency drives, servo systems and other EtherNet/IP field devices.
Core Communication Specifications
- 4‑port RJ45 copper gigabit Ethernet interface (10 Mbps / 100 Mbps / 1000 Mbps auto‑negotiation)
- Maximum 512 TCP connections for host and field device communications
- Supports up to 256 CIP motion axes over EtherNet/IP for complex multi‑axis motion applications
- Supported network topologies: Star, Linear, DLR (Device Level Ring), PRP (Parallel Redundancy Protocol) for network fault‑tolerance
- Built‑in CIP Security for industrial communication integrity and confidentiality protection; supports SNMP network management
Key Product Features
1. Gigabit High‑Speed Transmission & Redundancy Support
Gigabit bandwidth reduces data transmission latency for high‑density I/O and multi‑axis motion systems. DLR and PRP redundancy mechanisms ensure network continuity during cable or port failure, minimizing production downtime for critical automation systems.
2. CIP Security Function
Native CIP security implementation encrypts and authenticates EtherNet/IP communications, defending industrial control networks from unauthorized access, ideal for smart factory and high‑security‑requirement projects.
3. Full ControlLogix Platform Compatibility
Works with all ControlLogix 5570 / 5580 series controllers. Occupies one single slot in standard 1756 chassis (1756‑A4, A7, A10, A13). Supports remote distributed I/O, programming download, HMI data exchange and motion control traffic simultaneously, configured within Studio 5000 Logix Designer software.
4. Comprehensive Status Diagnostics
Front‑panel multi‑segment LED indicators display link status, network activity, module fault and communication health status for rapid on‑site troubleshooting. Hot‑swap capable for replacement without powering down the ControlLogix rack.
5. Electrical Ratings
- Backplane current draw: 1.2 A @ 5.1 VDC; 3 mA @ 24 VDC
- Maximum power dissipation: 6.1 W (20.8 BTU/hr)
- Isolation: Ethernet ports to ControlLogix backplane reinforced isolation
Environmental Specifications
- Operating temperature: 0 °C ~ +60 °C
- Storage temperature: -40 °C ~ +85 °C
- Humidity: 5 %‑95 % non‑condensing
- Certifications: cULus, CE, ATEX, IECEx; suitable for Class I Division 2 hazardous‑location installations
- Conformal coated variant: 1756‑EN4TRK; wide‑temperature XT variant: 1756‑EN4TRXT available for harsh environments
Typical Industrial Applications
Automotive assembly lines, large packaging production lines, material handling systems, process control plants, smart factory automation, projects requiring multi‑axis CIP motion control, and facilities needing high‑reliability, secure gigabit EtherNet/IP network communications.
Condition Remark Template
✅ New Original: Factory‑sealed genuine Rockwell module, original packaging, official 1‑year manufacturer warranty.
⚙️ Used / Surplus Fully Tested: Pre‑owned unit, complete functional testing performed, cleaned and inspected; test report available upon request.
Listing Title & Short Summary
Listing Title: Allen‑Bradley 1756‑EN4TR ControlLogix Gigabit EtherNet/IP Communication Module, CIP Security, DLR PRP Redundancy
Short Brief:
1756‑EN4TR high‑performance gigabit EtherNet/IP interface module for ControlLogix PAC. 4‑port RJ45, supports 512 TCP connections, 256 motion axes, DLR/PRP redundancy and CIP security. Used for high‑speed remote I/O, HMI and multi‑axis motion industrial networks.
eBay / Amazon Ready Bullet Points
- Part Number: 1756‑EN4TR, ControlLogix Gigabit EtherNet/IP Module
- 4× RJ45 copper ports, auto‑negotiate 10/100/1000 Mbps speed
- Up to 512 TCP connections, supports maximum 256 CIP motion axes
- DLR (Device Level Ring) and PRP parallel redundancy protocol supported
- Native CIP Security for secure industrial EtherNet/IP communication, SNMP supported
- Hot‑swappable, compatible with ControlLogix 5570 / 5580 controllers
- Fits standard 1756 chassis, configured via Studio 5000 Logix Designer
- Conformal coated:1756‑EN4TRK; wide temp XT:1756‑EN4TRXT offered separately
On Aug 4, 2026 at 03:01:52 PDT, seller added the following information:
On Sep 3, 2026 at 06:29:12 PDT, seller added the following information: