{"product_id":"allen-bradley-1769-sdn-compactlogix-devicenet-scanner-module","title":"Allen-Bradley 1769-SDN CompactLogix DeviceNet Scanner Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-SDN\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-SDN\u003c\/strong\u003e Communication Module, operates as a dedicated hardware component for DeviceNet network master\/slave traffic management within CompactLogix platforms. Configured to interface up to 64 nodes over a 500 Kbps trunkline, it handles deterministic I\/O data exchanges and explicit messaging tasks. The module bridges field-level sensors, actuators, and motor starters directly to the controller image table via the 1769 backplane bus.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e1769-SDN\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\u003e0.56 lbs (0.26 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSingle-Slot Width (Compact I\/O Form Factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePower Dissipation: 4.7 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eDeviceNet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Communication Rate\u003c\/td\u003e\n\u003ctd\u003e500 Kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Node Count\u003c\/td\u003e\n\u003ctd\u003e64 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMessaging Types\u003c\/td\u003e\n\u003ctd\u003eExplicit Messaging, Master and Slave Operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Distance Rating\u003c\/td\u003e\n\u003ctd\u003e4 Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eDIN Rail or Panel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP \u0026amp; DeviceNet Deterministic Network Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1769-SDN executes high-speed scan cycles to translate physical CAN-based DeviceNet frames into CompactLogix backplane memory arrays. Operating within deterministic Ethernet\/IP and CIP network topologies, the module synchronizes scheduled I\/O slave data blocks while reserving bandwidth for asynchronous explicit messaging. Firmware flash compatibility ensures seamless backplane communication velocity across legacy CompactLogix processors and MicroLogix 1500 systems without packet collision.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum power supply distance rating for the 1769-SDN module on a 1769 backplane?\u003c\/p\u003e\n\u003cp\u003eA: The 1769-SDN has a power supply distance rating of 4. It must be installed within 4 module slots of a 1769 power supply to maintain adequate backplane voltage regulation.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1769-SDN require external power from the DeviceNet network trunkline?\u003c\/p\u003e\n\u003cp\u003eA: Yes, while logic power is drawn from the 1769 backplane, the DeviceNet transceiver circuitry requires 24 VDC external power directly from the DeviceNet thick\/thin trunk cable.\u003c\/p\u003e\n\u003cp\u003eQ: How many node addresses can be configured on a single 1769-SDN scanner?\u003c\/p\u003e\n\u003cp\u003eA: The module supports up to 64 DeviceNet node addresses (0 to 63), functioning simultaneously in master or slave modes to scan connected field devices.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation:\u003c\/strong\u003e Fully isolate 1769 system backplane power and external 24 VDC DeviceNet bus power before mounting or removing the module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Position \u0026amp; Distance:\u003c\/strong\u003e Verify the module is mounted within 4 slots of the system power supply to comply with backplane voltage drop specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN Rail \/ Panel Mounting:\u003c\/strong\u003e Secure the module onto 35 mm DIN rail or panel-mount using M4\/M5 screws, ensuring the panel plate is properly grounded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeviceNet Tap Connections:\u003c\/strong\u003e Connect the 5-pin unpluggable linear connector to the DeviceNet drop line. Ensure signal conductors (CAN_H, CAN_L) and power leads (V+, V-) are wired correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrunkline Termination:\u003c\/strong\u003e Verify that 121-ohm, 1\/4-watt metal film termination resistors are installed across CAN_H and CAN_L at both physical ends of the main DeviceNet trunk cable.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52734362321176,"sku":"1769-SDN","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1769-SDN1_Cocoai.jpg?v=1789870718","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1769-sdn-compactlogix-devicenet-scanner-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}