{"product_id":"b-r-x20bb57-x20-series-compact-s-plc-base-bus-module","title":"Module de bus de base Compact-S PLC série X20BB57 B\u0026R X20","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20BB57 (X20BB57)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the fundamental hardware foundation for the B\u0026amp;R X20 Compact-S PLC series. This specialized bus module acts as the backplane for both the Compact-S PLC processor and its associated power supply module, facilitating seamless communication and power distribution. Designed to maximize panel space without sacrificing connectivity, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20BB57\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincludes integrated physical interfaces for 1x RS232 and 1x CAN bus. Engineered for versatile industrial deployment, it supports a wide operating temperature range from -25 to 60 deg C, making it a reliable backbone for decentralized control systems in manufacturing, energy management, and mobile automation.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20BB57\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003earchitecture is optimized for low-profile integration, with a logic-side power consumption of just 0.55 W. It provides a robust electrical infrastructure capable of handling a 10 A contact load for I\/O power supply distribution at a nominal 24 VDC. A key technical characteristic of this module is that the internal bus, CAN bus, and RS232 interfaces are not electrically isolated from each other; they share a common potential, which simplifies grounding strategies in localized control nodes. The module is fully rated for high-altitude operation, supporting installations up to 2000 m without de-rating, and is protected to IP20 standards for installation in standard industrial enclosures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX20BB57\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eB\u0026amp;R (Bernecker + Rainer)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModule Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompact-S PLC Base Bus Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInterfaces\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1x RS232, 1x CAN bus\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eB\u0026amp;R ID Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0xEB09\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax. Contact Load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption (Bus)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.55 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp (Horizontal)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp (Vertical)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to 50 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDegree of Protection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRelative Humidity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 to 95% (Non-condensing)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the X20BB57 provide isolation between the CAN bus and RS232 ports?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, according to the technical specifications, the internal bus, CAN bus, and RS232 interfaces are not isolated from one another. Engineers should ensure that connected devices share a compatible ground potential to avoid ground loops or communication errors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does installation altitude affect the performance of this bus module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor installations between 0 and 2000 m above sea level, there is no performance limitation. For elevations exceeding 2000 m, the maximum ambient operating temperature must be reduced by 0.5 deg C for every additional 100 m of elevation to account for reduced air density and cooling efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it possible to mount the X20BB57 in a vertical orientation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the module supports both horizontal and vertical mounting. However, vertical mounting reduces the maximum permissible operating temperature from 60 deg C to 50 deg C to ensure adequate passive heat dissipation through the module's ventilation slots.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding and Interface Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSince the RS232 and CAN bus interfaces share a common potential, it is critical to use shielded cables for all communication lines. The shield should be connected to a low-impedance functional earth (FE) at the entry point of the control cabinet to protect the non-isolated circuitry from external electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Planning for High-Altitude Use:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen deploying the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20BB57\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein high-altitude environments (e.g., mountain-top wind turbines or mining operations above 2000 m), calculate the temperature de-rating carefully. If the local environment reaches 40 deg C at 4000 m, the 10 deg C de-rating (0.5 deg C * 20 segments of 100 m) means the module is effectively operating near its upper thermal limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBus Connection Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the Compact-S PLC and power supply modules are fully seated and the locking mechanisms are engaged. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20BB57\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emanages the 10 A I\/O power rail; any loose connection can lead to localized heating or intermittent power loss to downstream I\/O modules connected to the X2X Link.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"B\u0026R","offers":[{"title":"Default Title","offer_id":53102125154667,"sku":"X20BB57","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/x20bb57-w2btupech0z.png?v=1776138134","url":"https:\/\/www.plcprotech.com\/fr\/products\/b-r-x20bb57-x20-series-compact-s-plc-base-bus-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}