{"product_id":"alerton-vlc-853-e-visuallogic-bacnet-ms-tp-field-controller-with-8-universal-inputs","title":"Alerton VLC-853-E VisualLogic BACnet MS\/TP Field Controller with 8 Universal Inputs","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-E is a fully programmable BACnet MS\/TP field controller designed for advanced HVAC and building automation applications. Featuring eight universal inputs, five hot-switching triac outputs, and three analog outputs, the VLC-853-E delivers flexible control, high-speed processing, and seamless integration into BACnet-based building management systems.\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 style=\"width: 100%; height: 607.407px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eAlerton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eBuilding Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eVLC-853-E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eBACnet Field Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eVisualLogic®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eProgrammable DDC Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003eNative BACnet MS\/TP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eCommunication Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003eUp to 115.2 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003e32-bit Microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eUniversal Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eBinary (Triac) Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003e5 Hot-Switching Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003e3 (0–10 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eMaximum Digital Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003e16 (with supported expansion\/configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eProgram Execution Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003eApproximately 100 ms Logical Loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eNonvolatile Flash Memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 39.1875px;\"\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 39.1875px;\"\u003e0–95% RH, Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eFirmware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eDownloadable for future software updates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eProgramming\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eFully Field Programmable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 58.7812px;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 58.7812px;\"\u003eAir Handling Units, Central Plant Systems, Clean Rooms, Fume Hoods, Large VAV Systems, Process Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\u003eControl Panel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.7959%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.8846%; height: 19.5938px;\"\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-E\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe VLC-853-E is part of the Alerton VisualLogic® family of native BACnet controllers developed for distributed direct digital control (DDC) applications. Built around a high-performance 32-bit processor, the controller executes control logic with fast response times while storing application programs and configuration data in nonvolatile Flash memory to preserve operation during power interruptions. As a fully programmable controller, it supports custom HVAC sequences for air handling units, central plant equipment, clean rooms, laboratory ventilation systems, terminal units, and other complex mechanical installations. Native BACnet MS\/TP communication enables straightforward integration with Alerton Compass®, Envision, and other BACnet-compliant building automation systems without the need for protocol gateways.\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 controller: Communicates directly on BACnet networks at speeds up to 115.2 kbps.\u003c\/li\u003e\n\u003cli\u003eEight universal inputs: Supports multiple sensor types including temperature, voltage, current, and dry-contact devices.\u003c\/li\u003e\n\u003cli\u003eFive hot-switching triac outputs: Controls floating actuators, relays, and other field devices.\u003c\/li\u003e\n\u003cli\u003eThree analog outputs: Provides proportional 0–10 VDC control for valves, dampers, and variable-speed equipment.\u003c\/li\u003e\n\u003cli\u003eHigh-speed 32-bit processor: Executes DDC control programs with approximately 100 ms logical loop time.\u003c\/li\u003e\n\u003cli\u003eFully programmable logic: Allows field customization for virtually any HVAC control sequence.\u003c\/li\u003e\n\u003cli\u003eNonvolatile Flash memory: Retains applications and configuration without battery backup.\u003c\/li\u003e\n\u003cli\u003eDownloadable firmware: Supports future software enhancements and feature updates.\u003c\/li\u003e\n\u003cli\u003eBackward compatibility: Integrates with existing Alerton VisualLogic installations.\u003c\/li\u003e\n\u003cli\u003eWide humidity tolerance: Operates in environments from 0% to 95% non-condensing humidity.\u003c\/li\u003e\n\u003cli\u003eLED status indicators: Simplifies diagnostics, commissioning, and maintenance.\u003c\/li\u003e\n\u003cli\u003eFlexible HVAC applications: Suitable for central plants, air handlers, clean rooms, fume hoods, and large VAV systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe VLC-853-E delivers the reliability and precision required for advanced HVAC automation, distributed BACnet control, and intelligent building management systems.\u003c\/p\u003e","brand":"Alerton","offers":[{"title":"Default Title","offer_id":52175251439914,"sku":"VLC-853-E","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_eb98bb5c-085d-4087-bcd4-7dff489a4c5f.webp?v=1785956876","url":"https:\/\/iqelectro.com\/products\/alerton-vlc-853-e-visuallogic-bacnet-ms-tp-field-controller-with-8-universal-inputs","provider":"IQElectro","version":"1.0","type":"link"}