{"product_id":"beckhoff-ks6771-bus-terminal-mp-bus-master-module","title":"Beckhoff KS6771 Bus Terminal MP-Bus Master Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eActuating as a dedicated integration link, the \u003cstrong\u003eBeckhoff KS6771\u003c\/strong\u003e Bus Terminal enables direct, bidirectional communication between a K-bus coupler and Belimo MP-Bus HVAC field devices. This module functions as an MP-Bus master, coordinating data acquisition and control command distribution over a single channel. The \u003cstrong\u003eKS6771\u003c\/strong\u003e design features a pluggable wiring level, allowing swift module swaps without disconnecting field-level wiring harnesses. Integration is fully managed via standard TwinCAT PLC function blocks, streamlining commissioning across complex commercial and industrial air handling architectures.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Device Topologies:\u003c\/strong\u003e Controls up to 16 MP-Bus devices (maximum 8 drives and 8 sensors) over a single fieldbus drop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePluggable Wiring Interface:\u003c\/strong\u003e Uses tension-clamp connection terminals that can be detached as a single block for expedited terminal replacement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e Provides robust 500 V isolation between the internal K-bus and the external MP-Bus circuitry to suppress common-mode electrical noise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient Process Image:\u003c\/strong\u003e Maps directly into the controller configuration utilizing 12 bytes of input data and 12 bytes of output data.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandardized Diagnostics:\u003c\/strong\u003e Fully compatible with the TwinCAT PLC MP-Bus software library for fast system integration and continuous error reporting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVAC Variable Air Volume (VAV) Systems:\u003c\/strong\u003e Direct control of volumetric flow controllers, damper actuators, and temperature sensors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Environmental Controls:\u003c\/strong\u003e Closed-loop control of pressure relief valves and air-handling units within cleanrooms or pharmaceutical laboratories.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilding Management Systems (BMS):\u003c\/strong\u003e Integration of distributed Belimo valve actuators and auxiliary sensors into high-level Ethernet\/IP or EtherCAT backbones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eKS6771\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInterface Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMP-Bus Master (1 Channel)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eData Transfer Rate\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1200 baud\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eBus Access Protocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePolling\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNominal System Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC (-15% \/ +20%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eK-Bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eTypically 55 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Contact Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eTypically 10 mA + actuator load\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMaximum Power Contact Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e10 A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIsolation Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e500 V (K-bus to MP-Bus line)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProcess Image Width\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e12 bytes input, 12 bytes output\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConnection Cross-Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.08 to 1.5 mm² (AWG 28...16 solid\/stranded; AWG 26...16 flexible)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eWire Stripping Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e9 to 10 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEnvironmental Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP20 (with variable installation orientation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-25 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRelative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e95% non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eVibration\/Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEMC Immunity\/Emission\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eExplosion Protection Marking\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eII 3 G Ex nA IIC T4 Gc (ATEX Zone 2)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eHousing Material\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePolycarbonate (terminal housing with pluggable wiring)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProduct Net Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eApproximately 85 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eTerminal Pin Number\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMP-Bus Line\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBidirectional communications line to Belimo slave actuators.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC (Power Contact)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePower feed to drive units (internally bridged to power contact).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eGND (MP-Bus Reference)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon reference potential for MP-Bus communication.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 V DC (Power Contact)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eNegative power rail reference (internally bridged to power contact).\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe \u003cstrong\u003eKS6771\u003c\/strong\u003e is direct operational equivalent to the standard KL6771 Bus Terminal. The critical difference lies in the \"KS\" terminal housing design, which includes a pluggable wiring block. From a software perspective, the TwinCAT hardware configuration treats the KS6771 identically to the KL6771, enabling seamless drop-in replacements in existing PLC programs without necessitating code modifications or IO mapping updates.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen deploying the KS6771, engineers must monitor total current consumption on the external 24 V DC supply loop. The terminal relies on internal power contacts rated for a maximum of 10 A. If several heavy damper drives are powered directly through the bus terminal, ensure the combined peak inrush currents do not exceed this threshold. For installations spanning long physical distances, use shielded twisted-pair cables to mitigate inductive noise coupling, which can disrupt the 1200-baud polling cycles.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo configure the bus terminal within the TwinCAT environment, the \u003ccode\u003eTc2_MPBus\u003c\/code\u003e library must be integrated into the PLC project. When addressing Belimo devices, remember that the MP-Bus allows 8 active control drives and 8 passive sensors. When inserting stranded field conductors, use the pluggable tension-clamp release slot with a standard flat-head screwdriver (3.0 mm blade size) to avoid damaging the polycarbonate terminal guide locks.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to installing, removing, or wiring the KS6771 terminal, completely de-energize the main system controller and all auxiliary 24 V power feeds. Failure to isolate power may cause communication bus disruption or permanent damage to the solid-state K-bus interface electronics.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eMount the terminal on a standard 35 mm DIN rail conforming to EN 60715, ensuring the lock mechanism snaps firmly into place.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eSlide adjacent terminals together, using the integrated double slot and key connection for side-by-side electrical contact.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003ePrepare field wires by stripping insulation precisely to 9–10 mm, avoiding loose strands that could cross-contact neighboring terminals.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eInsert field wiring into the pluggable tension clamps, using a spring-release screwdriver tool to lock each wire securely into position.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106515640683,"sku":"KS6771","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ks6771-zliauoemidu.png?v=1776245342","url":"https:\/\/www.plcprotech.com\/fa\/products\/beckhoff-ks6771-bus-terminal-mp-bus-master-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}