{"product_id":"1715-ob8de-allen-bradley-redundant-i-o-8-point-digital-output-module","title":"1715-OB8DE Allen-Bradley Redundant I\/O 8-Point Digital Output Module","description":"\u003ch3\u003eRedundant Architecture \u0026amp; Core Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley \u003cb\u003e1715-OB8DE\u003c\/b\u003e is a high-availability 8-point digital output module engineered specifically for the \u003cb\u003e1715 Redundant I\/O\u003c\/b\u003e product platform. Designed for fault-tolerant industrial control systems, this chassis-based module operates on an 18V to 32V DC output signal range with current sourcing capabilities and built-in surge transient immunity. Featuring a maximum power dissipation of 3 Watts and robust mechanical shock endurance (25g operational), it guarantees uninterrupted control signal transmission in critical safety and continuous process environments.\u003c\/p\u003e\n\u003cp\u003eInstrumentation and control engineers specify the \u003cb\u003e1715-OB8DE\u003c\/b\u003e module for redundant controller nodes where a single point of failure cannot be tolerated, ensuring seamless switchover capabilities during unexpected hardware faults.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Technical Specifications Table\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand Manufacturer:\u003c\/b\u003e Allen-Bradley (Rockwell Automation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Line \u0026amp; Series:\u003c\/b\u003e \u003cb\u003e1715 Redundant I\/O\u003c\/b\u003e System Family\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number \/ Model:\u003c\/b\u003e \u003cb\u003e1715-OB8DE\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC Identification:\u003c\/b\u003e 885630010748\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModule Type:\u003c\/b\u003e 8-Point Digital Output Module (Current Sourcing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Signal Range:\u003c\/b\u003e 18V to 32V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Dissipation:\u003c\/b\u003e 3 Watts maximum (operational rating \u0026lt; 2W typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWire Compatibility:\u003c\/b\u003e 18 to 16 AWG solid or stranded copper wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnclosure \u0026amp; Mounting Type:\u003c\/b\u003e Open-style chassis module, DIN rail mountable\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperational Temperature Range:\u003c\/b\u003e -25°C minimum to +70°C maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVibration \u0026amp; Shock Resistance:\u003c\/b\u003e 2g vibration resistance; 25g operational shock on DIN rail (30g non-operational, 50g uninstalled)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePhysical Dimensions (Approx.):\u003c\/b\u003e 166 mm x 42 mm x 118 mm (Shipping dimensions approx. 1 5\/8 x 4 5\/8 x 6 1\/2 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNet Hardware Weight:\u003c\/b\u003e 290 g (0.64 lbs) [Shipping package weight approx. 1.38 lbs \/ 0.62 kg]\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eAccording to Global PLC Spare HUB's Insight, deploying redundant output cards like the \u003cb\u003e1715-OB8DE\u003c\/b\u003e requires careful verification of backplane slot alignment and inter-module latching. Field technicians note that ensuring secure 18–16 AWG copper wire termination and verifying surge suppression on inductive actuator loads (such as solenoid valves) prevents transient voltage spikes from degrading internal solid-state current sourcing switches over long operational cycles.\u003c\/p\u003e\n\u003ch3\u003eTarget Equipment \u0026amp; High-Availability Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCritical Emergency Shutdown (ESD) Systems:\u003c\/b\u003e Manages fail-safe shutdown valves and safety interlocks in chemical processing plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOil \u0026amp; Gas Upstream Skids:\u003c\/b\u003e Controls high-pressure pneumatic actuator loops on offshore production platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Generation Burner Management:\u003c\/b\u003e Powers redundant fuel gas shutoff solenoids under strict safety integrity requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eContinuous Chemical Reactors:\u003c\/b\u003e Directs critical process control actuators where controller downtime halts entire production batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWater Desalination Plants:\u003c\/b\u003e Regulates high-flow motorized valve banks in municipal fluid transfer stations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic Capabilities \u0026amp; Module Health Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e1715-OB8DE\u003c\/b\u003e features an integrated diagnostic and health status display dashboard on the module faceplate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eChannel-Level Status LEDs:\u003c\/b\u003e Provides real-time visual indication of active output states for each of the 8 digital channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModule Health Dashboard:\u003c\/b\u003e Communicates internal fault conditions and redundancy synchronization status back to the parent controller rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSurge Transient Immunity:\u003c\/b\u003e Internal suppression circuits protect output switches from voltage kickbacks generated by inductive loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpress Logistics \u0026amp; 12-Month Warranty Coverage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty Terms:\u003c\/b\u003e Backed by a full 12-month replacement warranty covering manufacturer defects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDispatch Lead Time:\u003c\/b\u003e Expedited processing and secure worldwide dispatch within 24 to 48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGlobal Carriers:\u003c\/b\u003e Express international logistics managed via reliable partners FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProfessional Frequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ1: Is the 1715-OB8DE module compatible with standard non-redundant Allen-Bradley I\/O chassis?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA1: No, the \u003cb\u003e1715-OB8DE\u003c\/b\u003e is engineered specifically for the \u003cb\u003e1715 Redundant I\/O\u003c\/b\u003e chassis architecture designed to support high-availability fault-tolerant control configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ2: What type of field wiring should be used with this 8-point digital output module?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA2: Use 18 to 16 AWG solid or stranded copper wire, ensuring proper stripping and torque specifications to maintain secure connections under vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ3: How does the module protect against inductive kickback from connected solenoids or relays?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA3: The \u003cb\u003e1715-OB8DE\u003c\/b\u003e incorporates built-in surge transient immunity circuitry; however, adding flyback diodes or RC snubbers directly across large inductive loads is still recommended for extended hardware life.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ4: What should I check if a channel LED indicates an active output, but the field device fails to energize?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA4: Verify that the external 18V to 32V DC field power supply connected to the module is active, check for blown fusing on power distribution blocks, and inspect field wiring continuity.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ5: What purchasing guidelines ensure correct replacement of legacy 1715 series modules?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA5: Always verify the exact catalog part number and firmware revision index on your existing chassis nameplate to ensure seamless pairing with your redundant processor configuration.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67613802692790,"sku":"1715-OB8DE","price":196.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1715-OB8DE.jpg?v=1791620457","url":"https:\/\/www.plcsparehub.com\/products\/1715-ob8de-allen-bradley-redundant-i-o-8-point-digital-output-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}