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Frequently inquire Together
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InquiryAllen-Bradley 1756-EN4TR ControlLogix EtherNet/IP Communication Module
Configured for deterministic industrial network communication in ControlLogix automation systems, the Allen-Bradley 1756-EN4TR (1756-EN4TR EtherNet/IP Communication Module) provides high-speed EtherNet/IP connectivity between ControlLogix controllers, distributed I/O, motion devices, and supervisory network nodes. The module supports star and Device Level Ring (DLR) topologies while enabling large-scale network integration through gigabit Ethernet infrastructure.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-EN4TR |
| Brand | Allen-Bradley |
| Product Type | EtherNet/IP Communication Module |
| Series | ControlLogix |
| Network Protocol | EtherNet/IP |
| Supported Topologies | Star, Device Level Ring (DLR) |
| Media Type | Copper Ethernet |
| Communication Speeds | 10 Mbps, 100 Mbps, 1 Gbps |
| TCP Connections | 512 |
| Integrated Motion Axes | Up to 256 Axes |
| SNMP Support | Yes |
| Weight | 0.05 kg |
| Shipping Weight | 1.5 kg |
EtherNet/IP Deterministic Network Performance
The 1756-EN4TR serves as a ControlLogix communication interface for real-time EtherNet/IP data exchange. The module supports deterministic communications between controllers, distributed I/O platforms, motion systems, and networked automation devices operating on a common Ethernet infrastructure.
Support for communication rates up to 1 Gbps enables high-throughput data transfer across complex automation architectures. The module accommodates up to 512 TCP connections and supports integrated motion applications with up to 256 networked axes, allowing centralized coordination of control and motion tasks.
Device Level Ring functionality provides ring-based network architectures for applications requiring network path redundancy. The module also supports SNMP diagnostics for network monitoring and infrastructure management.
Frequently Asked Questions
Q: Which EtherNet/IP network topologies are supported?
A: The 1756-EN4TR supports both Star and Device Level Ring (DLR) network topologies.
Q: What is the maximum communication speed supported by the module?
A: The module supports 10 Mbps, 100 Mbps, and 1 Gbps Ethernet communication rates.
Q: How many TCP connections are supported?
A: The module supports up to 512 TCP connections.
Field Installation Guidelines
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Install the module in a compatible ControlLogix chassis.
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Verify EtherNet/IP network addressing before commissioning.
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Use industrial-rated Ethernet cabling where required.
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Confirm ring configuration before enabling DLR operation.
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Check link status indicators after power-up.
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