{"product_id":"beckhoff-el6021-ethercat-terminal-serial-interface-module","title":"Модуль последовательного интерфейса Beckhoff EL6021 EtherCAT Terminal  ","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe integration of serial point-to-point connections into an EtherCAT network is handled efficiently by the \u003cstrong\u003eBeckhoff EL6021\u003c\/strong\u003e serial interface module, which provides a high-performance communication path for RS422 and RS485 devices. Operating as a single-channel communication terminal, this unit facilitates direct, isolated connection of serial equipment to the decentralized control architecture. By executing \u003cstrong\u003efull-duplex\u003c\/strong\u003e or \u003cstrong\u003ehalf-duplex\u003c\/strong\u003e transmission via balanced differential signaling, it guarantees robust data transfer even in environments subjected to severe electromagnetic interference. The device bypasses local address configurations entirely, allowing all functional variables and protocol behaviors to be parameterized through the master PLC system.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.25rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Serial Standards:\u003c\/strong\u003e Features a selectable RS422 or RS485 hardware interface configured directly via software.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurable Baud Rates:\u003c\/strong\u003e Supports multiple baud rates from 2400 to 115,200 baud for broad compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Buffer Architecture:\u003c\/strong\u003e Built-in 864-byte receive buffer and 128-byte transmit buffer prevent data loss during processing peaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e Provides 500 V electrical isolation between the internal E-bus logic and the external signal lines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpring-Clamp Termination:\u003c\/strong\u003e Leverages spring-actuated terminal contacts for reliable wire connections resistant to high vibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Standard 12 mm width optimizes mounting space on high-density control panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.25rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBarcode \u0026amp; RFID Scanner Integration:\u003c\/strong\u003e Real-time serial data streaming from logistical scanning hardware directly to the PLC.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Weighing Systems:\u003c\/strong\u003e Connecting digital scales, load cells, and weighing terminals over isolated RS485.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVFD \u0026amp; Servo Drive Control:\u003c\/strong\u003e Point-to-point RS485 network command distribution to multi-drop motor controllers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Sensor Networks:\u003c\/strong\u003e Collecting parameters from remote climate, pressure, and temperature transmitter arrays.\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;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eBeckhoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eModel \/ Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eEL6021\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eInterface Standard\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e1 x RS422 \/ RS485\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eData Transfer Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTxD and RxD, Full \/ Half Duplex\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eData Transfer Rates\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e2400 to 115,200 baud (Default: 9600 baud, 8 data bits, no parity, 1 stop bit)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eLine Impedance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e120 ohm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eMaximum Cable Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eApproximately 1000 m twisted pair\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePower Supply Source\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eVia E-bus (no external power contacts)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCurrent Consumption (E-bus)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTypically 170 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e500 V (E-bus \/ signal voltage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eData Buffer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e864 bytes receive buffer, 128 bytes transmit buffer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eHousing Dimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\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: 0.5rem; font-weight: bold;\"\u003eWire Cross-Section (Solid\/Stranded)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.08 to 2.5 mm2 (AWG 28 to 14)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eWire Cross-Section (with Ferrule)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.14 to 1.5 mm2 (AWG 26 to 16)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eStripping Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e8 to 9 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e-25 to +60 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e-40 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eRelative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e95 percent, non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eApprovals \u0026amp; Markings\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eCE, UL, ATEX, IECEx, cFMus\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eDevice Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e55 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e0.15 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003e150 mm x 120 mm x 45 mm\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #e2e8f0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.5rem;\"\u003eTerminal Pin\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem;\"\u003eRS422 Mode Assignment\u003c\/th\u003e\n        \u003cth style=\"padding: 0.5rem;\"\u003eRS485 Mode Assignment\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: 0.5rem; font-weight: bold;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRxD+ (Receive Data Positive)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRxD\/TxD-B (Data Positive)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e5\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRxD- (Receive Data Negative)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eRxD\/TxD-A (Data Negative)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTxD+ (Transmit Data Positive)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eNot Used\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e6\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eTxD- (Transmit Data Negative)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eNot Used\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eGND (Signal Ground)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eGND (Signal Ground)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e7\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eShield\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eShield\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.5rem; font-weight: bold;\"\u003e4 \/ 8\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eShield Connection points\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.5rem;\"\u003eShield Connection points\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\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe module offers identical software mapping to the ES6021 version. While the EL6021 features built-in spring-tension clamp terminations, the ES6021 provides pluggable terminal blocks for accelerated physical swaps. When replacing older revisions of this module in TwinCAT, check the XML device description version compatibility to ensure correct PDO (Process Data Object) structure mapping.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo prevent data loss over long-distance RS485 loops, the internal 120-ohm termination resistor must be active at the physical endpoints. A frequent engineering mistake is neglecting PLC cycle times; if the PLC scan rate is significantly slower than the serial incoming data block transmission time, the internal 864-byte receive buffer will overflow, causing buffer errors in the status word. Cycle your serial processing tasks concurrently with the data arrival rate.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eLine termination for this module is configured strictly in software through the CoE (CAN over EtherCAT) directory index 0x8000. Ensure that the RS485\/RS422 shielded cable is directly grounded to the DIN rail ground terminal. Unshielded serial lines running parallel to high-current variable frequency drive cabling can cause communication drops or corrupted checksum registers.\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 Disconnect the primary and auxiliary power supplies before initiating installation, removal, or terminal wiring. Failure to de-energize the entire control panel assembly can lead to severe electrical shock, system bus corruption, or immediate logic module damage.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eAlign the module side by side with existing EtherCAT Terminals on a standard 35 mm DIN rail. Secure utilizing the integrated double slot and key connection.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eLock the module firmly onto the rail until the orange latch snaps securely into place over the rail flange.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eStrip wire insulation back 8 to 9 mm. Actuate the internal spring clamp by pressing a flat-head screwdriver into the terminal release slot.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eInsert the stripped conductor into the round wire entry, remove the screwdriver to lock the wire in place, and verify physical terminal grip strength.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106517573995,"sku":"EL6021","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el6021-f0kbklfdbio.png?v=1776244543","url":"https:\/\/www.plcprotech.com\/ru\/products\/beckhoff-el6021-ethercat-terminal-serial-interface-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}