{"product_id":"alerton-vlc-853-visuallogic-bacnet-ms-tp-programmable-field-controller","title":"Alerton VLC-853 VisualLogic BACnet MS\/TP Programmable Field Controller","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Alerton VLC-853 is a fully programmable BACnet field controller designed for advanced HVAC equipment control and building automation applications. Featuring universal inputs, binary outputs, and analog outputs, the VLC-853 delivers flexible direct digital control (DDC), fast processing performance, and seamless integration into native BACnet MS\/TP networks.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlerton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilding Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVLC-853\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBACnet Field Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVisualLogic® BACtalk®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable DDC Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBACnet MS\/TP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32-bit Processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNonvolatile Flash Memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUniversal Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBinary Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 Hot-Switching Triac Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 (0–10 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Software\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlerton VisualLogic™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic Execution Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–95% RH, Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirmware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eField Upgradable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED Power and Communication Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir Handling Units, Central Plant Systems, VAV Equipment, Clean Rooms, Laboratory Ventilation, Process Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 0.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan\u003eVLC-853\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe VLC-853 is part of the Alerton VisualLogic® BACtalk® controller family, engineered to provide reliable distributed control for commercial and industrial HVAC systems. As a native BACnet MS\/TP controller, it communicates directly with BACnet supervisory systems while executing programmable control logic independently for uninterrupted equipment operation. Built around a high-speed 32-bit processor, the controller stores all application programs and configuration data in nonvolatile Flash memory, ensuring reliable operation even after power interruptions. The VLC-853 is commonly installed in air handling units, central plant equipment, VAV systems, clean rooms, laboratory ventilation systems, and other applications requiring accurate monitoring and control.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNative BACnet MS\/TP communication: Fully BACnet-compliant for direct integration into building automation systems.\u003c\/li\u003e\n\u003cli\u003eEight universal inputs: Supports thermistors, dry contacts, voltage, and current input signals.\u003c\/li\u003e\n\u003cli\u003eFive binary triac outputs: Hot-switching outputs for controlling relays, dampers, valves, and other HVAC devices.\u003c\/li\u003e\n\u003cli\u003eThree analog outputs: Configurable 0–10 VDC outputs for proportional control applications.\u003c\/li\u003e\n\u003cli\u003eFully programmable controller: Supports customized VisualLogic control strategies.\u003c\/li\u003e\n\u003cli\u003eStand-alone operation: Continues executing programmed logic without continuous supervisory communication.\u003c\/li\u003e\n\u003cli\u003eHigh-speed processor: 32-bit architecture with approximately 100 ms internal logic loop.\u003c\/li\u003e\n\u003cli\u003eNonvolatile Flash memory: Stores programs and operating data without battery backup.\u003c\/li\u003e\n\u003cli\u003eDownloadable firmware: Allows future software enhancements and feature updates.\u003c\/li\u003e\n\u003cli\u003eLED diagnostics: Provides operating and communication status indication.\u003c\/li\u003e\n\u003cli\u003eIndustrial reliability: Designed for continuous operation in commercial building environments.\u003c\/li\u003e\n\u003cli\u003eFlexible HVAC applications: Suitable for air handlers, central plants, laboratory systems, and large terminal units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe VLC-853 delivers the reliability and precision required for HVAC automation, BACnet building management, and programmable equipment control.\u003c\/p\u003e","brand":"Alerton","offers":[{"title":"Default Title","offer_id":52175279587626,"sku":"VLC-853","price":799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/alerton-vlc-853__73776.1778119836.jpg?v=1785957544","url":"https:\/\/iqelectro.com\/products\/alerton-vlc-853-visuallogic-bacnet-ms-tp-programmable-field-controller","provider":"IQElectro","version":"1.0","type":"link"}