{"product_id":"beckhoff-el3356-0020-ethercat-terminal-1-channel-analog-input","title":"EL3356-0020 | BECKHOFF | Terminal EtherCAT","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned specifically for high-accuracy gravimetric and force monitoring applications, the \u003cstrong\u003eBeckhoff EL3356-0020\u003c\/strong\u003e EtherCAT Terminal processes differential signals from full-bridge strain gauges with exceptional speed and precision. This terminal interfaces directly with resistor bridges to deliver reliable, factory-calibrated measurements in industrial process environments.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eDirect interface for one resistor bridge in full-bridge technology.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eHigh-resolution 24-bit analog-to-digital conversion with 32-bit data presentation options.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eFactory calibration certificate stored internally for guaranteed accuracy.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eSupports Distributed Clocks (DC) for precise temporal synchronization across the EtherCAT network.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eIntegrated dynamic filters, quadruple averager, and self-calibration routines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eHigh-precision industrial platform scales and vessel weighing.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eMaterial testing machines and tensile strength evaluation systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eSilo and hopper level measurements with dynamic load distribution.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.25rem;\"\u003eTorque and force monitoring on rotating equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eSpecification Value\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: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBeckhoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEL3356-0020\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEtherCAT Terminal\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNumber of Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2, for 1 full-bridge resistor bridge\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eTechnology Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eResistor bridge, strain gauge\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eSignal Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDifferential\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eDistributed Clocks\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eYes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMeasuring Range UD\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMax. -25 to +25 mV rated voltage\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMeasuring Range UREF\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMax. -12 to +12 V rated voltage\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInternal Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e\u0026gt; 200 kOhm (UREF), \u0026gt; 1 MOhm (UD)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInput Filter Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e10 kHz low pass (-3 dB)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.1 to 250 ms (configurable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e24 bit (32 bit presentation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMeasurement Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e\u0026lt; +\/-0.01 % of calculated load value\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eE-bus Current Draw\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTyp. 280 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCalibration Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFactory calibrated (with certificate)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0 to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eConnection Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSpring-actuated cage clamp\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eWire Cross Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSolid\/Stranded: 0.08 - 2.5 mm2 (AWG 28 - 14)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eComparing the EL3356-0020 to standard EL3356 terminals, the primary differentiator is the included factory calibration certificate stored directly within the terminal's internal non-volatile memory. To maintain compatibility with TwinCAT projects, ensure the corresponding EtherCAT XML Device Description (ESI) file matches this precise hardware revision to prevent E-bus initialization failures.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen deploying inside high-density control panels, thermal fluctuations can degrade calibration accuracy. While the active self-calibration routine corrects for gain and offset drift, mounting the terminal away from high-heat components like variable frequency drives is recommended. Additionally, aggressive setting of dynamic filters (CoE 0x8000) may introduce signal delays that can affect high-speed check-weighing applications.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eShielding is critical when dealing with microvolt-level differential signals (UD). Run strain gauge cabling through dedicated conduits and terminate the overall shield directly to the grounded DIN rail via low-impedance grounding clamps. Ensure CoE parameters (such as the notch filter for 50 Hz\/60 Hz noise rejection) are aligned with your localized grid frequency to maximize signal stability.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING: ELECTRICAL HAZARD\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-size: 0.95rem;\"\u003eEnsure the main power supply and E-bus system are entirely de-energized before mounting, wiring, or removing this terminal. Failure to do so can result in electrical shock, transient surges on the bus, or permanent damage to the high-precision differential circuit of the measuring module.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 1.5rem; height: 1.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0; font-size: 0.85rem;\"\u003e1\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748;\"\u003ePosition the terminal on the standard 35 mm DIN rail (conforming to EN 60715) and slide it until the locking clip securely snaps into place.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 1.5rem; height: 1.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0; font-size: 0.85rem;\"\u003e2\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748;\"\u003eEnsure reliable grounding of the DIN rail to establish a noise-free return path for the high-precision analog signals.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 1.5rem; height: 1.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0; font-size: 0.85rem;\"\u003e3\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748;\"\u003eStrip wires to the recommended length of 8 to 9 mm. Insert a flathead screwdriver into the spring actuation slot to open the cage clamp, insert the wire, and release the screwdriver.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 1.5rem; height: 1.5rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0; font-size: 0.85rem;\"\u003e4\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748;\"\u003eConfigure the TwinCAT System Manager to recognize the new device, and verify calibration parameter integration via CoE online indices.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106465964395,"sku":"EL3356-0020","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3356-0020-vzx4sujemtn.png?v=1776244479","url":"https:\/\/www.plcprotech.com\/fr\/products\/beckhoff-el3356-0020-ethercat-terminal-1-channel-analog-input","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}