{"product_id":"1769-adn-allen-bradley-compactlogix-devicenet-network-adapter","title":"1769-ADN Allen-Bradley CompactLogix DeviceNet Network Adapter","description":"\u003ch3\u003e\u003cstrong\u003eSystem Architecture and Functional Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1769-ADN\u003c\/strong\u003e adapter functions as an open network communication gateway bridging Rockwell Automation \u003cstrong\u003eCompactLogix\u003c\/strong\u003e and MicroLogix 1500 controllers to industrial DeviceNet architectures. Utilizing the Common Industrial Protocol (CIP), this module aggregates real-time process data from up to 30 distributed I\/O nodes, streamlining field device integration while reducing overall control cabinet wiring.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Parameters and Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1769-compactlogix\"\u003eCompactLogix\u003c\/a\u003e (Compact I\/O)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1769-ADN\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDeviceNet Adapter \/ Scanner Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne (1) DeviceNet 3-pin open-style connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBaud Rates \u0026amp; Max Span\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125 kbps (500m), 250 kbps (250m), 500 kbps (100m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 input words, 180 output words, 724 configuration words\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e450 mA (Series A) or 500 mA (Series B) at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Distance Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaximum 4 modules away (Series A) \/ 5 modules away (Series B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 Watts maximum (4.7W typical module load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 Volts continuous rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003ePhysical Mounting and Installation Protocol\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecure the \u003cstrong\u003e1769-ADN\u003c\/strong\u003e module directly onto standard structural DIN rails or mount firmly to an enclosure backplate.\u003c\/li\u003e\n\u003cli\u003eEnsure the adapter remains within its strict power supply distance constraint—no more than 4 slots (Series A) or 5 slots (Series B) away from the system power supply.\u003c\/li\u003e\n\u003cli\u003eLock adjacent backplane bus connectors tightly; if mechanical resistance occurs, disengage to verify pin alignment before re-securing.\u003c\/li\u003e\n\u003cli\u003eTerminate trunk lines using 802.3 compliant twisted-pair cabling with 14 AWG conductors and 121-ohm resistors at both ends.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eBuilt-in Diagnostics and Network Health Monitoring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront-panel bicolor (red\/green) status LEDs provide real-time visual verification for module health, network state, I\/O loops, and diagnostics.\u003c\/li\u003e\n\u003cli\u003eAdvanced error-checking routines isolate node drops, baud rate mismatches, and trunk line voltage fluctuations instantly.\u003c\/li\u003e\n\u003cli\u003eExtended buffer registers capture configuration anomalies to assist plant floor engineers during system commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Network Scalability\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInteroperates cleanly with legacy master scanners including the \u003cstrong\u003e1769-SDN\u003c\/strong\u003e, SLC 500, PLC-5, and ControlLogix platforms.\u003c\/li\u003e\n\u003cli\u003eSupports explicit and implicit messaging functions to exchange control data across multi-vendor industrial networks.\u003c\/li\u003e\n\u003cli\u003eReplaces complex hard-wired I\/O racks with resilient serial bus architecture to minimize installation labor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eLogistics and Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by a comprehensive \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering structural and functional manufacturing defects.\u003c\/li\u003e\n\u003cli\u003eExpedited international delivery coordinated through premium global carriers including \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eGuaranteed order preparation and fast dispatch within \u003cstrong\u003e24-48 hours\u003c\/strong\u003e of verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment and Typical Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomated material handling sortation systems utilizing distributed photoelectric sensors and pneumatic valve islands.\u003c\/li\u003e\n\u003cli\u003ePackaging machinery lines requiring decentralized data collection across extensive physical machine frames.\u003c\/li\u003e\n\u003cli\u003eLegacy plant automation retrofits linking compact control platforms to established DeviceNet communication trunks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight and Field Experience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eCommissioning engineers deploying the \u003cstrong\u003e1769-ADN\u003c\/strong\u003e must rigorously calculate power supply distance limitations during panel design. Exceeding the 4-slot or 5-slot proximity threshold relative to the power supply introduces backplane voltage drop, triggering intermittent communication faults. Field experience also demonstrates that installing high-quality 121-ohm end-of-line resistors is mandatory to prevent signal reflections that corrupt data transmission at 500 kbps speeds.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What selection guidelines determine whether to configure the network speed at 125 kbps versus 500 kbps?\u003c\/strong\u003e\u003cbr\u003eA: Select 500 kbps for short physical trunk spans under 100 meters requiring high-speed data updates, and step down to 125 kbps for long-distance runs reaching up to 500 meters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1769-ADN adapter interface with non-Rockwell automation master controllers?\u003c\/strong\u003e\u003cbr\u003eA: Yes, as long as the third-party master scanner supports standard Common Industrial Protocol (CIP) connection parameters and explicit messaging requests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What immediate troubleshooting steps apply if the network status LED flashes red continuously?\u003c\/strong\u003e\u003cbr\u003eA: Inspect the DeviceNet trunk line for severed cables, incorrect baud rate switches, loose terminal plugs, or missing 121-ohm terminating resistors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is an auxiliary power source necessary to energize the DeviceNet communication transceiver circuitry?\u003c\/strong\u003e\u003cbr\u003eA: Yes, an external 11 to 25V DC power supply must be wired directly into the network connector to power the transceiver bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hardware adjustments are required when upgrading a Series A adapter to a Series B unit?\u003c\/strong\u003e\u003cbr\u003eA: Account for the improved power supply distance rating, as Series B models allow positioning up to 5 modules away from the power source compared to 4 for Series A.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013902164150,"sku":"1769-ADN","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1769-ADN_d21cf306-14ec-4c73-82c8-dc242d523df5.jpg?v=1788944845","url":"https:\/\/www.plcsparehub.com\/products\/1769-adn-allen-bradley-compactlogix-devicenet-network-adapter","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}