{"product_id":"allen-bradley-1756-en2tr-c-ethernet-ip-communication-module","title":"Allen-Bradley 1756-EN2TR\/C EtherNet\/IP Communication Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-EN2TR\/C EtherNet\/IP Communication Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for high-speed controller-to-network data exchange in ControlLogix architectures, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-EN2TR\/C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-EN2TR\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEtherNet\/IP Bridge Module) provides direct physical Ethernet packet routing and backplane-level CIP communication within a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756 ControlLogix chassis\u003c\/strong\u003e. The module executes redundant network connectivity and deterministic I\/O data transfer through dual RJ-45 interfaces with integrated Ethernet switch logic.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\/C\u003c\/strong\u003e: Hardware revision level C indicating updated internal circuitry and revised Ethernet processing firmware baseline\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBase Model:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-EN2TR\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEtherNet\/IP Bridge Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFunction Class: ControlLogix communication interface module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-EN2TR\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e145 mm × 35 mm × 140 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W (5 VDC backplane, 1 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Type\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorts\u003c\/td\u003e\n\u003ctd\u003e2 × RJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbps auto-negotiation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n\u003ctd\u003e~1 A @ 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCIP Connections\u003c\/td\u003e\n\u003ctd\u003eUp to 256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTCP\/IP Connections\u003c\/td\u003e\n\u003ctd\u003eUp to 128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacket Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 10,000 packets\/sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix Backplane \u0026amp; EtherNet\/IP Deterministic Networking\u003c\/h3\u003e\n\u003cp\u003eThe module integrates into ControlLogix backplane architecture and exchanges cyclic I\/O and explicit messaging via high-speed backplane bus communication. EtherNet\/IP deterministic scheduling supports synchronized packet routing across dual Ethernet channels. The embedded switch architecture enables linear, star, and DLR topologies without external routing hardware. Firmware revision \/C maintains compatibility with ControlLogix chassis firmware mapping tables for stable backplane synchronization and CIP connection allocation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1756-EN2TR\/C support hot-swap insertion in a powered chassis?\u003cbr\u003eA: Yes. The module supports hot-swapping in ControlLogix racks with backplane re-enumeration of CIP connections after insertion.\u003c\/p\u003e\n\u003cp\u003eQ: What is the backplane power requirement behavior under full connection load?\u003cbr\u003eA: The module draws approximately 1 A at 5.1 VDC from the chassis backplane under typical full network load conditions.\u003c\/p\u003e\n\u003cp\u003eQ: Can dual Ethernet ports operate independently?\u003cbr\u003eA: Yes. Both ports support simultaneous communication for redundant paths and DLR or linear topology configurations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the module only in an energized ControlLogix-compatible 1756 chassis slot. Ensure backplane connectors are fully seated to maintain signal integrity. Use shielded Ethernet cables with proper drain wire grounding at the switch cabinet earth point. Maintain separation between Ethernet and high-voltage conductors to minimize EMI coupling. For redundant architectures, configure switch topology to prevent broadcast loops using managed switches or DLR-enabled devices. Verify firmware compatibility between controller, chassis, and communication module prior to commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43581826793562,"sku":"1756-EN2TR\/C","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-EN2TRB1.jpg?v=1782973714","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-en2tr-c-ethernet-ip-communication-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}