{"product_id":"beckhoff-bk8000-rs485-bus-coupler","title":"BECKHOFF BK8000 RS485 Bus Coupler","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eDesigned for reliable industrial fieldbus integration, the \u003cstrong\u003eBeckhoff BK8000\u003c\/strong\u003e Bus Coupler links modular Beckhoff Bus Terminals directly to RS485 network architectures. This interface module processes up to 512 digital input\/output channels and 256 analog input\/output channels, translating physical peripheral signals into the open, documented RS485 serial communication protocol. System parameters and node addressing are easily set up using the KS2000 configuration software, ensuring seamless commissioning and diagnostics.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eBK8000\u003c\/strong\u003e acts as the central decentralized head station, managing the internal K-bus system and distributing power to downstream terminal slices. With integrated galvanic isolation separating the fieldbus connection, the internal electronic components, and the 24 V DC power contacts, this bus coupler delivers excellent noise immunity and operational stability in demanding electrical environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEfficient connection of up to 64 local Beckhoff Bus Terminals to an RS485 fieldbus network.\u003c\/li\u003e\n  \u003cli\u003eDirect configuration and advanced diagnostic mapping via the KS2000 software interface.\u003c\/li\u003e\n  \u003cli\u003eGalvanic isolation up to 500 V between power contacts, internal supply voltage, and the fieldbus interface.\u003c\/li\u003e\n  \u003cli\u003eIntegrated power supply terminal designed to supply the internal K-bus with up to 1750 mA.\u003c\/li\u003e\n  \u003cli\u003eSupport for standard serial transfer media via screened, twisted-pair copper cabling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial process automation and distributed control systems (DCS).\u003c\/li\u003e\n  \u003cli\u003eHVAC and building automation networks utilizing RS485 multidrop configurations.\u003c\/li\u003e\n  \u003cli\u003eMachine building and production lines requiring decentralized input\/output blocks.\u003c\/li\u003e\n  \u003cli\u003eEnergy management and remote telemetry systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBK8000\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eOpen, documented protocol\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBus Interface\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eRS485 D-sub\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eData Transfer Rates\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e9.6 kbaud, 19.2 kbaud, 38.4 kbaud\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax. Number of Bus Terminals\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e64\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMax. Number of Fieldbus Bytes\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e512 byte input \/ 512 byte output\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDigital Peripheral Signals\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e512 inputs \/ outputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAnalog Peripheral Signals\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e256 inputs \/ outputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e24 V DC (-15 % \/ +20 %)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e70 mA + (total K-bus current) \/ 4 (Max. 500 mA)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStarting Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e2.5 x continuous current\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRecommended Fuse\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e≤ 10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eK-Bus Current Supply\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1750 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Contacts Max.\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e24 V DC \/ Max. 10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e500 V (power contact \/ supply voltage \/ fieldbus)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-25 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e95 %, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVibration \/ Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEMC Immunity \/ Emission\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInstallation Position\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eVariable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eApprox. 170 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Install on standard 35 mm DIN rail (EN 60715) in a clean, dry control cabinet. The installation position is variable, but vertical alignment is recommended for optimal convection cooling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Always use shielded, twisted-pair copper cables (recommended cross-section: 2 x 0.25 mm²) for the RS485 communication line to prevent electromagnetic interference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ensure the DIN rail and the PE (protective earth) connection points are bonded to a low-impedance ground plane.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eK-bus Protection:\u003c\/strong\u003e Ensure the total current consumption of connected Bus Terminals does not exceed the maximum K-bus current supply of 1750 mA. Install a power feed terminal if current requirements exceed this limit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUL:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eATEX Markings:\u003c\/strong\u003e II 3 G Ex ec IIC T4 Gc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIECEx Markings:\u003c\/strong\u003e Ex ec IIC T4 Gc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Approval:\u003c\/strong\u003e DNV GL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106453381483,"sku":"BK8000","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bk8000-fr4zzxxks4r.png?v=1776243470","url":"https:\/\/www.plcprotech.com\/pl\/products\/beckhoff-bk8000-rs485-bus-coupler","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}