{"product_id":"abb-di820-digital-input-module-for-industrial-automation","title":"ABB DI820 Digital Input Module for Industrial Automation","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe ABB DI820 is a high-performance digital input module engineered for demanding industrial automation environments. With 8 individually isolated channels, the DI820 accepts both AC and DC signals, making it a versatile choice for monitoring field devices such as limit switches, pushbuttons, and proximity sensors. Its robust design includes EMC protection, optical isolation, and current limiting components to ensure reliable operation in electrically noisy plants.\u003c\/p\u003e\u003cp\u003eKey to the DI820's functionality is its voltage supervision capability. Channel 1 can supervise channels 2–4, and channel 8 can supervise channels 5–7. If the field power to these groups fails, the module activates error inputs and illuminates a warning LED, allowing operators to quickly detect power loss and minimize downtime.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe following table summarizes the critical specifications of the ABB DI820, ensuring you have the exact data needed for system design and integration.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle Number\u003c\/td\u003e\n\u003ctd\u003e3BSE008512R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDigital Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Specification\u003c\/td\u003e\n\u003ctd\u003e120 V AC \/ 110 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eCurrent Sinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range (\"0\")\u003c\/td\u003e\n\u003ctd\u003e0..30 V AC, 0..20 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range (\"1\")\u003c\/td\u003e\n\u003ctd\u003e77..130 V AC, 75..145 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e12 kΩ (AC) \/ 39 kΩ (DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eIndividually isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Times (digital, selectable)\u003c\/td\u003e\n\u003ctd\u003e2, 4, 8, 16 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e47..63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Filter On\/Off Delay\u003c\/td\u003e\n\u003ctd\u003e5 \/ 18 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limiting\u003c\/td\u003e\n\u003ctd\u003eSensor power can be current limited by the MTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Field Cable Length\u003c\/td\u003e\n\u003ctd\u003e200 m (219 yd) for AC, 600 m (656 yd) for DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Insulation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Test Voltage\u003c\/td\u003e\n\u003ctd\u003e2000 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003eTyp. 2.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption +5 V Modulebus\u003c\/td\u003e\n\u003ctd\u003e50 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption +24 V Modulebus\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption +24 V External\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e45 mm (1.77\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e102 mm (4.01\"), 111 mm (4.37\") incl. connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e119 mm (4.7\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.18 kg (0.4 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThese specifications ensure the DI820 integrates seamlessly into S800 I\/O systems, providing accurate and reliable digital input acquisition.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe ABB DI820 is ideal for applications requiring robust digital input monitoring with high immunity to electrical noise. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control\u003c\/strong\u003e: Monitoring limit switches and valve position feedback in chemical or pharmaceutical plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling\u003c\/strong\u003e: Detecting presence of parts on conveyors using photoelectric or inductive sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Distribution\u003c\/strong\u003e: Supervising auxiliary contacts in switchgear to ensure proper breaker status.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThanks to its voltage supervision feature, the DI820 is especially valuable in safety-critical processes where loss of field power could lead to hazardous conditions. Early warning via the ModuleBus allows control systems to initiate safe shutdown procedures.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eInstalling the ABB DI820 is straightforward when following the S800 series guidelines. Mount the module on a standard DIN rail or a TU811\/TU813\/TU831\/TU839\/TU851 MTU. Ensure proper keying (keying code AB) to prevent mismatched mounting. Connect field wiring to the MTU terminals, respecting the maximum cable lengths and using appropriate cable types for AC or DC signals. Set the digital filter time (2, 4, 8, or 16 ms) via the control system to match the signal characteristics and noise environment. After power-up, verify that the front LEDs (Fault, Run, Warning) indicate normal operation.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe DI820 is designed for long-term reliability in harsh industrial environments. To maintain optimal performance, periodically inspect the module for dust accumulation and ensure proper ventilation around the enclosure. Check that all field wiring is secure and free from corrosion. The module's EMC protection and optical isolation reduce the risk of damage from transient voltages, but regular testing of the voltage supervision function is recommended to confirm the warning LED and ModuleBus error signals operate correctly. With no moving parts, the DI820 requires minimal maintenance, contributing to lower total cost of ownership.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe ABB DI820 is part of the S800 I\/O system and is compatible with MTUs TU811, TU813, TU831, TU839, and TU851. It communicates over the ModuleBus, allowing seamless integration with ABB AC 800M controllers and other S800-compatible systems. The module supports current sinking inputs and provides individually isolated channels, simplifying field wiring and improving system flexibility. For existing installations, the DI820 can replace older digital input modules, offering enhanced diagnostic capabilities and voltage supervision.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the ABB DI820, verify your system's voltage requirements and channel count. The DI820 handles 120 V AC\/110 V DC signals and provides 8 channels, which is suitable for many applications. Ensure your MTU matches the keying code AB and that your controller supports the S800 series. When ordering, confirm the article number 3BSE008512R1 to guarantee you receive the correct module. PLC Source PRO offers authentic ABB DI820 modules with fast shipping and competitive pricing, making it a reliable partner for your automation spares needs.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default","offer_id":44443603894371,"sku":"DI820","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/DI820__E5_89_AF_E6_9C_AC.jpg?v=1785929137","url":"https:\/\/www.plcsourcepro.com\/ar\/products\/abb-di820-digital-input-module-for-industrial-automation","provider":"PLC Source PRO","version":"1.0","type":"link"}