{"product_id":"allen-bradley-1756-dnb-devicenet-scanner-module","title":"Allen-Bradley 1756-DNB ControlLogix DeviceNet Scanner Module","description":"\u003cp\u003eThe Allen-Bradley 1756-DNB is a specialized communication bridge and scanner module designed for the ControlLogix platform. It enables seamless integration between a ControlLogix controller and a DeviceNet network, facilitating real-time data exchange with distributed field devices such as drives, sensors, motor starters, and operator interfaces.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eServes as a high-performance DeviceNet scanner for ControlLogix chassis environments.\u003c\/li\u003e\n\u003cli\u003eSupports up to 64 DeviceNet nodes with configurable addressing from 00 to 63.\u003c\/li\u003e\n\u003cli\u003eProvides selectable communication baud rates of 125 Kbps, 250 Kbps, and 500 Kbps.\u003c\/li\u003e\n\u003cli\u003eIntegrated diagnostic capabilities for network health and status monitoring.\u003c\/li\u003e\n\u003cli\u003eBackplane-powered design for streamlined installation within standard ControlLogix racks.\u003c\/li\u003e\n\u003cli\u003eSupports Automatic Device Replacement (ADR) for simplified maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAutomotive Manufacturing: Managing weld cells, assembly sensors, and conveyor logic.\u003c\/li\u003e\n\u003cli\u003eOil and Gas: Interfacing with field instruments, valve manifolds, and remote telemetry units.\u003c\/li\u003e\n\u003cli\u003eMetals and Mining: Connecting heavy machinery, sorters, and high-vibration equipment.\u003c\/li\u003e\n\u003cli\u003eWater and Wastewater: Integrating flow meters, pumps, and process control instrumentation.\u003c\/li\u003e\n\u003cli\u003eWarehouse Logistics: Enabling sortation systems and AGV routing control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-DNB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax DeviceNet Nodes\u003c\/td\u003e\n\u003ctd\u003e64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.8 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e19.8 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis power supply has sufficient capacity to support the module's current draw (typically 350 mA at 5.1V DC).\u003c\/li\u003e\n\u003cli\u003eAlways disconnect the DeviceNet cable before attempting to hot-swap the module to prevent electrical transients from affecting the network.\u003c\/li\u003e\n\u003cli\u003eThe DeviceNet trunk line requires two 121-ohm termination resistors at the extreme ends of the network.\u003c\/li\u003e\n\u003cli\u003eMaintain single-point grounding for the network shield, preferably at the DeviceNet power supply location.\u003c\/li\u003e\n\u003cli\u003eVerify firmware compatibility, particularly when transitioning between older series modules and newer Series E hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1756-DNB?\u003c\/h3\u003e\u003cp\u003eThe 1756-DNB acts as a bridge and scanner, allowing a ControlLogix processor to read inputs from and write outputs to remote DeviceNet-compliant field devices.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with remote chassis configurations?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-DNB can be installed in a remote rack without a local CPU, provided a bridge module (such as EtherNet\/IP or ControlNet) is present to facilitate communication with a master controller in a separate chassis.\u003c\/p\u003e\u003ch3\u003eHow is the baud rate configured?\u003c\/h3\u003e\u003cp\u003eThe module supports Autobaud detection, or you can manually configure the network speed and node address via the front-panel interface or through RSNetWorx for DeviceNet software.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48827134279870,"sku":"1756-DNB","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/wm_1_4fe525bc-6b00-4f81-b9c6-3ed6f0a2f733.jpg?v=1788307175","url":"https:\/\/www.autooiltech.com\/products\/allen-bradley-1756-dnb-devicenet-scanner-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}