{"product_id":"allen-bradley-20-comm-d-b-devicenet-communication-adapter","title":"Allen-Bradley 20-COMM-D\/B DeviceNet Communication Adapter","description":"\u003ch2\u003eAllen-Bradley 20-COMM-D\/B DeviceNet Communication Adapter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 20-COMM-D\/B\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e20-COMM-D\u003c\/strong\u003e DeviceNet Communication Adapter, operates as a dedicated hardware component for DeviceNet network communication within PowerFlex Architecture-class AC drive systems. It provides DPI-based data exchange between AC drives and DeviceNet industrial automation networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e20-COMM-D\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 deg C to +50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e150 mA at 5 VDC from drive-side DPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eDeviceNet with CIP (Common Industrial Protocol)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Interface\u003c\/td\u003e\n\u003ctd\u003eDPI (Drive Peripheral Interface)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Data Rates\u003c\/td\u003e\n\u003ctd\u003e125 kbps, 250 kbps, 500 kbps, Autobaud, PGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive Data Rates\u003c\/td\u003e\n\u003ctd\u003e125 kbps or 500 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNode Address Range\u003c\/td\u003e\n\u003ctd\u003e0 to 63 via rotary switches or software parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacket Processing\u003c\/td\u003e\n\u003ctd\u003eUp to 400 total I\/O packets per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCIP Connections\u003c\/td\u003e\n\u003ctd\u003eUp to 16 simultaneous connections including one exclusive-owner I\/O connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC from DeviceNet bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL 508C, CAN\/CSA C22.2 No. 14-M91, CE, C-Tick, ODVA DeviceNet Conformance Tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and Industrial Drive Communication Features\u003c\/h3\u003e\n\u003cp\u003eThe 20-COMM-D Series B uses the PowerFlex DPI communication architecture to transfer drive parameters, status information, and control commands through DeviceNet networks. The adapter receives power from the connected drive interface while maintaining DeviceNet bus communication through a separate 24 VDC network supply.\u003c\/p\u003e\n\u003cp\u003eThe module supports deterministic industrial communication through CIP messaging and I\/O connections. Rotary node address switches allow direct hardware configuration, while parameter-based configuration provides software-controlled addressing and setup functions. The Series B hardware revision includes updated firmware compatibility compared with earlier 20-COMM-D revisions.\u003c\/p\u003e\n\u003cp\u003eThe adapter supports backplane bus communication velocity management through the DPI interface, allowing PowerFlex drive systems to exchange operational data without additional external communication hardware. Firmware compatibility should be verified against the connected PowerFlex drive firmware revision before installation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 20-COMM-D Series B be installed as a hot-swappable module while the drive is operating?\u003cbr\u003eA: The adapter is designed for installation within compatible PowerFlex drive assemblies or DPI mounting kits. Power removal and manufacturer-defined installation procedures should be followed before physical connection or removal.\u003c\/p\u003e\n\u003cp\u003eQ: What electrical power sources are required for operation?\u003cbr\u003eA: The adapter receives 5 VDC power from the drive-side DPI interface and draws 24 VDC from the DeviceNet network bus for communication functions.\u003c\/p\u003e\n\u003cp\u003eQ: How is DeviceNet node addressing configured?\u003cbr\u003eA: Node addressing can be configured through rotary hardware switches or software parameters, supporting node addresses from 0 to 63.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 20-COMM-D adapter only in compatible PowerFlex drive assemblies or approved external DPI mounting hardware.\u003c\/p\u003e\n\u003cp\u003eVerify that the drive power source is isolated before inserting or removing the communication adapter. Connect DeviceNet wiring according to network topology requirements, maintaining correct polarity and proper cable shielding.\u003c\/p\u003e\n\u003cp\u003eTerminate and ground the DeviceNet shield according to the applicable control system installation standard. Keep DeviceNet communication cables separated from high-current motor power wiring and switching conductors to reduce electromagnetic interference.\u003c\/p\u003e\n\u003cp\u003eConfirm the DeviceNet node address, communication baud rate, and drive DPI communication parameters before placing the drive system into service.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43796505296986,"sku":"20-COMM-D\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/20-COMM-D1.jpg?v=1786073664","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-20-comm-d-b-devicenet-communication-adapter","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}