{"product_id":"mitsubishi-qj71dn91-devicenet-module-qj71dn91","title":"Mitsubishi QJ71DN91 DeviceNet Module QJ71DN91","description":"\u003ch3 data-section-id=\"nq8ynu\" data-start=\"0\" data-end=\"18\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"19\" data-end=\"488\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/mitsubishi\"\u003eMitsubishi\u003c\/a\u003e QJ71DN91 DeviceNet module is used in industrial automation systems to provide DeviceNet communication capability between a Mitsubishi PLC and DeviceNet networks. It is commonly installed in MELSEC PLC racks and control cabinets to connect the controller to DeviceNet I\/O, sensors, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003edrives\u003c\/a\u003e. Maintenance teams and system integrators use this module for network integration, distributed I\/O deployment, and replacement of legacy communication interfaces.\u003c\/p\u003e\n\u003ch3 data-section-id=\"plkbhx\" data-start=\"490\" data-end=\"509\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"510\" data-end=\"921\"\u003eThe Mitsubishi QJ71DN91 module is widely used in factory and process automation environments that require DeviceNet networking for control and monitoring. It is commonly found in packaging machinery, material handling systems, conveyor controls, robotics cells, and machine automation where distributed devices communicate via DeviceNet with a central PLC for deterministic I\/O, status monitoring, and coordinated control.\u003c\/p\u003e\n\u003ch3 data-section-id=\"68ulmp\" data-start=\"923\" data-end=\"954\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"955\" data-end=\"1527\"\u003e• Model: QJ71DN91\u003cbr data-start=\"972\" data-end=\"975\"\u003e• Module type: DeviceNet communication interface\u003cbr data-start=\"1023\" data-end=\"1026\"\u003e• Supported protocol: DeviceNet (CIP)\u003cbr data-start=\"1063\" data-end=\"1066\"\u003e• Baud rates: Typical DeviceNet speeds (125\/250\/500 kbps)\u003cbr data-start=\"1123\" data-end=\"1126\"\u003e• Connector: 5‑pin DeviceNet network connector\u003cbr data-start=\"1172\" data-end=\"1175\"\u003e• Network topology: Linear with drop and trunk\u003cbr data-start=\"1221\" data-end=\"1224\"\u003e• Indicators: Link\/activity and status LEDs\u003cbr data-start=\"1267\" data-end=\"1270\"\u003e• Mounting: PLC rack slot mount\u003cbr data-start=\"1301\" data-end=\"1304\"\u003e• Compatibility: Mitsubishi MELSEC PLC systems\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e• Communication functions: I\/O scanning, explicit messaging, network node handling\u003cbr data-start=\"1435\" data-end=\"1438\"\u003e• Power: Backplane supplied\u003cbr data-start=\"1465\" data-end=\"1468\"\u003e• Designed for: DeviceNet network interfacing in automation\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ln9bp8\" data-start=\"1529\" data-end=\"1555\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1556\" data-end=\"1682\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Mitsubishi QJ71DN91H (enhanced variant)\u003cbr data-start=\"1597\" data-end=\"1600\"\u003e• Mitsubishi QJ71DN92 (alternate DeviceNet interface)\u003cbr data-start=\"1653\" data-end=\"1656\"\u003e• Allen‑Bradley \u003ca href=\"https:\/\/plgautomation.com\/products\/allen-bradley-1756-dnb?_pos=1\u0026amp;_sid=967e0bc0c\u0026amp;_ss=r\"\u003e1756‑DNB\u003c\/a\u003e\u003c\/p\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558428414254,"sku":"New","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/QJ71DN91.webp?v=1751940639","url":"https:\/\/plgautomation.com\/products\/mitsubishi-qj71dn91-devicenet-module-qj71dn91","provider":"PLG Automation ","version":"1.0","type":"link"}