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Allen-Bradley 1756-EN3TR 1756-EN4TR dual-port chassis communication module

Allen-Bradley 1756-EN3TR 1756-EN4TR
Allen-Bradley 1756-EN3TR 1756-EN4TR
Allen-Bradley 1756-EN3TR 1756-EN4TR

Allen-Bradley 1756-EN3TR 1756-EN4TR dual-port chassis communication module

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CONTROLLOGIX ETHERNET/IP

1756-EN3TR
& 1756-EN4TR

 

Dual-port, chassis-mounted EtherNet/IP communication modules for resilient ControlLogix network architectures.

DLR TOPOLOGY | REAL-TIME I/O | MESSAGE EXCHANGE
1756-EN3TR
2 RJ45 ports
10/100 Mbps
High-capacity motion support		 1756-EN4TR
2 RJ45 ports
10/100/1000 Mbps
CIP Security capability		 1 slot
ControlLogix chassis mounting
International Delivery on the Day | Quick Response Support
Intercontinental Cooperation Network
Sales manager: Miya Zheng EMAIL: SALES@AMIKON.CN WHATSAPP: 86-18020776792
 
 
CONTROLLOGIX ETHERNET/IP COMMUNICATION

ALLEN-BRADLEY 1756-EN3TR / 1756-EN4TR

Two dual-port chassis communication modules built for resilient EtherNet/IP architectures. Both support embedded-switch topologies, real-time I/O, messaging and integrated motion, while 1756-EN4TR expands bandwidth, connection scale, motion capacity and network security for larger systems.

2
RJ45 PORTS
     
CONTROLLER CHASSIS DLR / LINE NETWORK I/O + MOTION + MESSAGING
1
CHASSIS SLOT
CHECK SERIES, FIRMWARE AND TOPOLOGY BEFORE PURCHASE
Send the module catalog number, series, firmware, controller type and intended network topology.
 EMAIL MIYA WHATSAPP 86-18020776792
MODEL PROFILES

Two Performance Levels on One Network Path

1756-EN3TR
HIGH-CAPACITY 100 MBPS PLATFORM
Network: dual copper RJ45, 10/100 Mbps
Connections: up to 128 TCP and 256 CIP
Backplane load: 1 A at 5.1 Vdc; 3 mA at 24 Vdc
Power dissipation: 5.1 W
Environment: 0 to 60 degrees C; 5 to 95% RH, noncondensing

Suited to resilient ControlLogix networks requiring distributed I/O, explicit messaging and higher-capacity integrated motion without gigabit bandwidth.
1756-EN4TR
GIGABIT + CIP SECURITY PLATFORM
Network: dual copper RJ45, 10/100/1000 Mbps
Connections: up to 512 TCP; 256 Logix connections
Motion capacity: up to 256 axes
Backplane load: 1.2 A at 5.1 Vdc
Security: CIP Security capable with supported firmware and architecture

Designed for larger node counts, heavier traffic, high-axis-count motion and segmented security strategies where the surrounding system supports the required features.

Both modules are open-style, chassis-mounted devices and occupy one ControlLogix slot. Their two ports support embedded-switch arrangements such as Device Level Ring and linear networks. Final engineering must consider controller generation, Studio 5000 release, module series, firmware, EDS/AOP compatibility, requested packet interval, multicast loading and switch configuration.

REAL-TIME I/O Producer/consumer EtherNet/IP connections carry cyclic I/O between controllers, adapters and field devices.
 
INTEGRATED MOTION CIP Motion traffic shares the EtherNet/IP infrastructure; axis count and update demand must remain within module and controller limits.
 
RESILIENT TOPOLOGY The embedded switch supports DLR participation; ring-supervisor responsibility and network convergence behavior must be planned.
 
DIAGNOSTICS Front display and status indicators support commissioning, address confirmation and fault isolation without replacing network-level diagnostics.
SYSTEM RELATIONSHIP

Select by Traffic, Scale and Security

DECISION POINT 1756-EN3TR 1756-EN4TR
Copper link speed 10/100 Mbps 10/100/1000 Mbps
TCP capacity 128 512
Motion emphasis High-capacity motion applications Up to 256 axes
Security capability Conventional EtherNet/IP security architecture CIP Security capable
Best fit Established 100 Mbps ControlLogix networks High-throughput, high-scale modern architectures
Upgrade caution: Physical slot fit does not prove application compatibility. Confirm chassis power budget, Logix Designer support, controller and redundancy revisions, network configuration, security certificates and the behavior of any existing ring before migrating.
 
Amikon support team
 
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RESPONSIVE SUPPORT
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Fast, dependable industrial automation supply
Amikon coordinates current and discontinued parts for customers across multiple industries, helping reduce the time between failure diagnosis and production recovery.
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NO HIDDEN HANDLING CHARGES
REQUEST A QUOTE FOR 1756-EN3TR OR 1756-EN4TR
Send the module catalog number, series, firmware, controller type and intended network topology.
 EMAIL MIYA WHATSAPP 86-18020776792
PURCHASING FAQ

Network Planning Questions

Can 1756-EN3TR be replaced by 1756-EN4TR without project changes?
The chassis slot is similar, but firmware support, Studio 5000 compatibility, module definition, network settings, redundancy revisions and chassis power must all be checked before migration.		 Does 1756-EN4TR automatically make every connection run at 1 Gbps?
No. Each link negotiates with the connected device and infrastructure. Cabling, switches and peer ports must support gigabit operation to use that rate.
Can 1756-EN3TR operate as a Device Level Ring supervisor?
It can participate in DLR architectures, but supervisor roles, ring order and fault behavior must be configured deliberately and validated for the installed revision.		 Is CIP Security active by default on 1756-EN4TR?
CIP Security requires a supported firmware and system design, compatible endpoints, certificates and configured security policies. Installing the module alone does not secure the network.
What details are needed to quote 1756-EN3TR and 1756-EN4TR accurately?
Provide the requested catalog number, series, firmware, chassis and power supply, controller model, Studio 5000 release, topology, redundancy use, motion-axis count and required network-security functions.
Return and replacement support: Contact us within seven days after receipt if a problem appears. Keep the item in its original condition and state the reason for return. After the returned unit is inspected, a return or replacement can be arranged; shipping charges remain the buyer's responsibility.
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SEND YOUR NEXT INDUSTRIAL PART NUMBER TO MIYA
Send the module catalog number, series, firmware, controller type and intended network topology.
 EMAIL MIYA WHATSAPP 86-18020776792
Sales manager: Miya Zheng   |   Email: sales@amikon.cn   |   Phone / WhatsApp: 86-18020776792
Hot Tags : Allen-Bradley 1756-EN3TR Allen-Bradley 1756-EN4TR CONTROLLOGIX ETHERNET/IP COMMUNICATION 1756-EN4TR datasheet 1756-EN3TR manual 1756-EN4TR pdf
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