{"product_id":"di825-abb-advant-s800-isolated-input-unit-3bse036373r1","title":"DI825 ABB Advant S800 Isolated Input Unit 3BSE036373R1","description":"\u003ch3\u003e\u003cstrong\u003eSystem Architecture and Functional Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDI825\u003c\/strong\u003e (Article Number: \u003cstrong\u003e3BSE036373R1\u003c\/strong\u003e) is an advanced 8-channel digital input module engineered specifically for the ABB \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/s800-i-o\"\u003e\u003cstrong\u003eS800 I\/O\u003c\/strong\u003e\u003c\/a\u003e platform. Operating at a nominal 125V d.c., this module provides individually isolated channels equipped with built-in Sequence of Event (SOE) recording, optical isolation barriers, and dedicated voltage supervision capabilities.\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 \/ Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABB \/ S800 I\/O Series\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\n\u003cstrong\u003eDI825\u003c\/strong\u003e (3BSE036373R1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 channels, current sinking, individually isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eState \"0\": 0 to 20 V | State \"1\": 71 to 156 V (Nominal 125V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance \u0026amp; Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41.5 kΩ impedance; 3.0 mA input current at 125V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSequence of Events (SOE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupported (0.4 ms resolution, -0.25 to 1.0 ms accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible MTUs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTU811, TU813, TU831, TU839, TU851 (Keying Code: AB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.9 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModulebus Power Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMax 90 mA at +5 VDC (0 mA at +24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003ePhysical Mounting and Installation Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the \u003cstrong\u003eDI825\u003c\/strong\u003e module onto compatible S800 ModuleTermination Units (MTUs) such as TU811V1, maintaining the AB keying code alignment.\u003c\/li\u003e\n\u003cli\u003eEnsure vertical mounting ambient temperatures do not exceed 55°C (or 40°C when using compact MTUs) to prevent internal thermal buildup.\u003c\/li\u003e\n\u003cli\u003eRoute field cabling up to 600 meters (656 yards) while adhering to standard S800 EMC shielding and grounding practices.\u003c\/li\u003e\n\u003cli\u003eVerify that field supply voltages remain within the 71V to 156V operating window to ensure reliable logic state \"1\" detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAdvanced Diagnostics and Voltage Supervision\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChannel 1 operates as a dedicated process voltage supervision input for channels 2 through 4, while Channel 8 supervises channels 5 through 7.\u003c\/li\u003e\n\u003cli\u003eLoss of supervisory voltage on monitoring channels triggers immediate channel error flags, warning LEDs, and ModuleBus fault reporting.\u003c\/li\u003e\n\u003cli\u003eFront-panel diagnostic LEDs provide instant visual status for Fault (F), Run (R), Warning (W), and individual channel states.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Environmental Hardening\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully compatible with ABB S800 hardware racks and control networks using standard ModuleBus communication.\u003c\/li\u003e\n\u003cli\u003eCoated to meet ISA-S71.04 G3 harsh corrosive environment standards for maximum longevity in industrial plants.\u003c\/li\u003e\n\u003cli\u003eComplies with EN 61010-1 electrical safety and EN 61000-6-4 \/ EN 61000-6-2 EMC industrial immunity specifications.\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 dependable \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering material defects and electronic calibration performance.\u003c\/li\u003e\n\u003cli\u003eExpedited international delivery coordinated through premier global logistics 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 rapid 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\u003eHigh-voltage electrical substation automation and protective relay trip monitoring systems.\u003c\/li\u003e\n\u003cli\u003ePower generation turbine control panels requiring precise 125V DC digital status feedback.\u003c\/li\u003e\n\u003cli\u003eCritical process manufacturing plants demanding high-integrity Sequence of Event (SOE) timestamping.\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\u003eAutomation engineers integrating the \u003cstrong\u003eDI825\u003c\/strong\u003e module must pay close attention to the voltage supervision wiring configuration; failing to tie supply power into designated supervision channels 1 or 8 will result in persistent warning flags on the ModuleBus. Field experience indicates that utilizing proper MTU keying (Code AB) during initial mechanical installation prevents accidental insertion into mismatched 24V or 230V base units, protecting internal current-limiting components from overvoltage stress.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What specific function do Channels 1 and 8 serve beyond standard digital signal acquisition?\u003c\/strong\u003e\u003cbr\u003eA: Channels 1 and 8 double as dedicated process voltage supervision inputs, monitoring group voltage health for channels 2-4 and 5-7 respectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the DI825 module be installed on any standard S800 Module Termination Unit (MTU)?\u003c\/strong\u003e\u003cbr\u003eA: No, the module requires compatible MTUs such as TU811, TU813, TU831, TU839, or TU851 featuring matching AB keying codes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What troubleshooting steps apply if a persistent warning LED illuminates on the module front panel?\u003c\/strong\u003e\u003cbr\u003eA: Check the process voltage connected to supervision channels 1 and 8, inspect field wiring for voltage sag below 71V, and read the error register via the ModuleBus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the DI825 support hot-swapping or insertion under power within the S800 rack?\u003c\/strong\u003e\u003cbr\u003eA: Yes, S800 I\/O modules support ModuleBus communication hot insertion, allowing replacement without powering down the entire node.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What selection guidance applies when choosing filter times for noisy 125V DC industrial environments?\u003c\/strong\u003e\u003cbr\u003eA: Select software-configurable digital filter times up to 100 ms to eliminate high-frequency contact bounce and induced electrical transients.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45435156758710,"sku":"DI825","price":124.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/DI825-3.jpg?v=1789021625","url":"https:\/\/www.plcsparehub.com\/products\/di825-abb-advant-s800-isolated-input-unit-3bse036373r1","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}