{"product_id":"allen-bradley-1756-en2t-b-ethernet-ip-bridge-module","title":"Allen-Bradley 1756-EN2T\/B EtherNet\/IP Bridge Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-EN2T\/B EtherNet\/IP Bridge Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for real-time EtherNet\/IP communication in ControlLogix architecture, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-EN2T\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-EN2T\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEtherNet\/IP Bridge Module) provides direct execution of CIP-based data exchange between ControlLogix controllers and Ethernet network nodes. The module interfaces with the 1756 backplane to handle cyclic I\/O traffic and explicit messaging across dual RJ-45 ports.\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\u003e1756-EN2T\u003c\/strong\u003e: Base EtherNet\/IP communication module for ControlLogix chassis integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\/B Revision\u003c\/strong\u003e: Hardware revision update with internal circuit and communication stack optimization\u003cbr\u003eNo further functional sub-model segmentation is defined in the provided configuration.\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-EN2T\/B\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\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 x 35 mm x 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 VDC backplane, ~1.0 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 x RJ-45\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\u003eCIP Connections\u003c\/td\u003e\n\u003ctd\u003eUp to 128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Interface\u003c\/td\u003e\n\u003ctd\u003e1756 ControlLogix backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix EtherNet\/IP Backplane Deterministic Network Handling\u003c\/h3\u003e\n\u003cp\u003eThe module operates within the ControlLogix backplane bus structure, where Ethernet frames are processed through scheduled firmware tasks aligned with controller scan cycles. CIP object routing is executed via embedded communication firmware, enabling deterministic producer-consumer data exchange.\u003c\/p\u003e\n\u003cp\u003eDual-port architecture supports linear, star, and device-level ring segmentation without external bridging logic. Backplane arbitration defines throughput limits based on slot allocation and chassis communication bandwidth, while firmware revision \/B modifies internal packet scheduling behavior for improved cycle stability.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1756-EN2T\/B support hot-swap operation in an energized chassis?\u003cbr\u003eA: Yes, the module supports hot insertion and removal in a powered 1756 ControlLogix chassis. Re-enumeration occurs through backplane slot detection.\u003c\/p\u003e\n\u003cp\u003eQ: What is the impact of backplane current draw on chassis design?\u003cbr\u003eA: The module draws approximately 1.0 A at 5 VDC. Total chassis power budget must account for cumulative module loading across all slots.\u003c\/p\u003e\n\u003cp\u003eQ: Does firmware revision mismatch affect CIP communication?\u003cbr\u003eA: Yes, mismatch between controller firmware and module revision may reduce CIP connection availability or block explicit messaging sessions.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInsert the module into a compatible 1756 ControlLogix chassis slot with alignment to the backplane connector. Ensure full seating to establish electrical continuity. Use shielded twisted-pair Ethernet cabling with controlled grounding at the switch-side earth reference point. Maintain separation from high-voltage conductors to reduce electromagnetic coupling. Configure IP addressing via BOOTP\/DHCP utility or controller-side network configuration prior to runtime operation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43581702570074,"sku":"1756-EN2T\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-EN2TB2.jpg?v=1782971952","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-en2t-b-ethernet-ip-bridge-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}