Allen-Bradley 1756-EN2T/B Dual port Ethernet/IP communication module
Specific Parameters
Brand Allen-Bradley (Rockwell Automation, American Brand)
Product Series ControlLogix Series Communication Module
Product Type Dual-port Ethernet/IP Communication Module
Model 1756-EN2T/B
Communication Protocols Supporting EtherNet/IP, CIP, Modbus TCP, HTTP/HTTPS, SNMP, IGMP protocols
Communication Ports 2 RJ45 ports, supporting 10/100Mbps adaptive transmission
Transmission Characteristics Supporting auto-negotiation and Auto-MDI/MDI-X functions
Connection Capacity 256 Logix communication connections, 128 TCP/IP communication connections
Supported Topologies Device Level Ring (DLR), Linear topology, Star topology
IP Assignment Supporting DHCP, BOOTP protocols and manual IP address setting
Installation Method Single-slot installation in ControlLogix standard chassis, compatible with 1756-A4/A7/A10 chassis, etc.
Power Supply Powered by chassis backplane, +5VDC, power consumption 5.1W
Physical Dimensions Single-slot width approx. 45mm, weight 0.91kg
Operating Temperature Range -20℃ to +60℃
Relative Humidity 5% to 95%, no condensation
Protection Level IP20
Isolation Voltage 30V continuous basic insulation from Ethernet to backplane, tested at 510VAC for 60 seconds
Certification Compliant with UL, CSA, CE certifications, compatible with ODVA specifications
Programming Software Supporting Studio 5000 Logix Designer software configuration
Product Performance
The dual-port switch design enables networking without external switches, and DLR ring network support achieves <3ms fault recovery, ensuring communication continuity of critical systems.
10/100Mbps adaptive transmission rate combined with multi-protocol support realizes OT and IT system integration, meeting dual needs of real-time control and data acquisition.
256 Logix connection capacity can adapt to large-scale distributed systems, establishing stable communication with various devices simultaneously with excellent scalability.
Adopting electrical isolation design, it effectively resists electromagnetic interference in industrial fields, no crosstalk between ports, ensuring signal transmission integrity in harsh environments.
Seamlessly integrated with ControlLogix controllers through the backplane, no additional wiring required, convenient configuration and debugging, reducing system integration costs.
Built-in complete diagnostic mechanism, combined with front-panel LED indicators, can real-time monitor link status, topology status and fault information, with high operation and maintenance efficiency.
Supports IEEE802.1X port authentication, enhances network security, prevents unauthorized device access, and ensures industrial network stability.
Wide temperature adaptability of -20℃ to +60℃, combined with rugged housing design, can operate stably for a long time in vibrating and dusty industrial environments.
















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