{"product_id":"allen-bradley-20-comm-b","title":"20-COMM-B","description":"\u003ch2\u003eOverview of Allen Bradley PowerFlex 20-COMM-B\u003c\/h2\u003e\n\u003cp\u003eThe Allen Bradley PowerFlex 20-COMM-B is a BACnet MS\/TP communication adapter designed for integration with PowerFlex 7-Class variable frequency drives. It enables direct BACnet Master-Slave\/Token-Passing network connectivity, allowing for control, configuration, and real-time data collection from connected drives. The module installs internally to save panel space, but can also be used externally via a dedicated communications kit. Its rugged design and easy field installation make it a reliable choice for industrial automation applications that require open protocol integration and remote monitoring. The 20-COMM-B supports key drive models including the PowerFlex 70, 700, and 700H series.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features of Allen Bradley PowerFlex 20-COMM-B\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInternal BACnet MS\/TP connectivity for PowerFlex 7-Class drives\u003c\/li\u003e\n\u003cli\u003eField-installable—mounts inside the drive or externally with a DPI External Communications Kit\u003c\/li\u003e\n\u003cli\u003eConfigurable baud rates: 9600, 19200, 38400, or 76800 bps, with autoband capability out of the box\u003c\/li\u003e\n\u003cli\u003eMAC address selection via DIP switches (supports up to node 127)\u003c\/li\u003e\n\u003cli\u003eUser-configurable termination and bias resistors for network optimization\u003c\/li\u003e\n\u003cli\u003eFlash-upgradeable firmware via DriveExplorer, DriveExecutive, or ControlFLASH\u003c\/li\u003e\n\u003cli\u003eMultiple configuration tool support, including PowerFlex DPI HIM and drive software\u003c\/li\u003e\n\u003cli\u003eStatus LEDs for quick diagnosis of network and adapter health\u003c\/li\u003e\n\u003cli\u003eWeb interface for Series B v3.xxx and above, offering advanced configuration and monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of PowerFlex 20-COMM-B\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Drives\u003c\/td\u003e\n\u003ctd\u003ePowerFlex 70 (SC\/EC), 700 (SC\/VC), 700H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eBACnet MS\/TP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rates\u003c\/td\u003e\n\u003ctd\u003e9600, 19200, 38400, 76800 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMAC Address Range\u003c\/td\u003e\n\u003ctd\u003e0–127\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eInternal (drive-mounted) or external (with kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003eNetwork, DPI, adapter LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eHIM, DriveExplorer, DriveExecutive, ControlFLASH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination\/Bias\u003c\/td\u003e\n\u003ctd\u003eSwitchable on-board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThe Allen Bradley PowerFlex 20-COMM-B is used for integrating variable frequency drives into BACnet MS\/TP-based building automation and industrial control systems. It is ideal for commercial and industrial facilities requiring seamless integration with HVAC, pumping, fan, and other motor control applications. The adapter’s open protocol support allows for interoperability with third-party building management systems, simplifying system architecture and reducing wiring complexity. Its web configuration features (on select firmware) further streamline remote setup and diagnostics, making it suitable for both new installations and upgrades.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eIndustrial automation components and repair services from LeadTime.ca\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eBrowse the full Allen Bradley product line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/how-to-choose-the-right-soft-starter-for-your-motor-application\/\" target=\"_blank\"\u003eHow to match a soft starter to your motor application\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-25b-d2p3n104\" target=\"_blank\"\u003eAllen Bradley PowerFlex 525 AC Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-2198-s160-ers3\" target=\"_blank\"\u003eAllen Bradley Kinetix 5700 Servo Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870728995115,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_3062fbc2-3589-4de1-b6df-ac155bc70c73.png?v=1723533631","url":"https:\/\/leadtime.ca\/products\/allen-bradley-20-comm-b","provider":"LEADTIME","version":"1.0","type":"link"}