{"product_id":"beckhoff-elm3502-0000-elm-series-2-channel-analog-input-ethercat-terminal","title":"Beckhoff ELM3502-0000 ELM Series 2-Channel Analog Input EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered to meet the stringent demands of high-speed industrial metrology, the Beckhoff ELM3502-0000 measurement terminal captures precise differential signals from strain gauges and resistor bridges. Supporting full, half, and quarter-bridge topologies, this high-end module features \u003cstrong\u003e24-bit resolution\u003c\/strong\u003e and simultaneous sampling speeds up to \u003cstrong\u003e20 ksps per channel\u003c\/strong\u003e. Enclosed in a robust zinc die-cast housing for optimal thermal and electrical shielding, it integrates seamlessly into Beckhoff EtherCAT control architectures, utilizing Distributed Clocks for synchronized, sub-microsecond multi-channel alignment.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eDual-channel high-speed differential measurement interface.\u003c\/li\u003e\n  \u003cli\u003eFull, half, and quarter-bridge resistor strain gauge input compatibility.\u003c\/li\u003e\n  \u003cli\u003eSelectable oversampling factor from 1 to 100 (up to 20 ksamples\/s).\u003c\/li\u003e\n  \u003cli\u003eIntegrated diagnostic features, including broken wire and short-circuit monitoring.\u003c\/li\u003e\n  \u003cli\u003eAdvanced DSP features: TrueRMS, non-linear scaling, PeakHold, integrator, and differentiator filters.\u003c\/li\u003e\n  \u003cli\u003eRobust zinc die-cast enclosure with integrated status LEDs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eIndustrial test benches and dynamic dynamometer load monitoring.\u003c\/li\u003e\n  \u003cli\u003eReal-time structural health monitoring and strain analysis.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed weighing systems and inline material tensioning control.\u003c\/li\u003e\n  \u003cli\u003eGeotechnical and civil engineering monitoring systems.\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: 8px; font-weight: bold; width: 40%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eArticle Number \/ SKU\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eELM3502-0000\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2 differential inputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSupported Sensors\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eResistor bridge, strain gauges (full, half, quarter bridge)\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 Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2-, 3-, 4-, 5-, or 6-wire configuration\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 Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePush-in, 6-pin service plug\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24-bit (including sign)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMax. Sampling Rate\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e20 ksps (50 us) per channel, simultaneous\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOversampling Factor\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003en = 1 to 100 (selectable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInternal Input Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u0026gt; 4 MOhm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eE-bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e450 mA typical\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;\"\u003e707 V DC (Channel to Bus \/ Channel to SGND)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eThermal Dissipation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3 W typical\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;\"\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: 8px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eEnclosure Material\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eZinc die-cast\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;\"\u003e30 mm x 100 mm x 95 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;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e350 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;\"\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\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe ELM3502-0000 is part of Beckhoff’s high-end measurement class. Unlike standard analog slice terminals (such as the EL3356), the ELM3502-0000 provides vastly superior sampling speeds and built-in numerical filters, making it compatible with complex TwinCAT 3 Metrology functions. It requires a compatible EtherCAT Coupler (e.g., EK1100) and proper configuration in TwinCAT for oversampling features.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDue to its high sampling rate of 20 ksps, the terminal is sensitive to high-frequency electrical noise and electromagnetic interference. Standard unshielded cabling can distort measurements. Ensure that the metal housing of the ELM3502-0000 makes direct, clean contact with the grounded DIN rail via the grounding springs on the rear panel. When routing signal lines, keep bridge cables separated from high-voltage AC or motor-drive output lines.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFor quarter-bridge installations, verify that the internal completion resistors are correctly parameterized within the TwinCAT System Manager. Ensure the 6-pin push-in service plug is locked securely in place. If utilizing Distributed Clocks (DC), activate sync managers in TwinCAT to achieve sub-microsecond jitter timing across multiple measurement channels on the network segment.\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 De-energize all power sources feeding the EtherCAT bus and the measurement bridges before physically mounting or wiring the ELM3502-0000. Failure to do so can cause localized ground loops, damage internal calibration tables, or destroy sensitive connected strain gauge sensors.\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: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eMount the ELM3502-0000 vertically onto a standard 35 mm DIN rail (EN 60715) with the double slot and key connection securely engaged with adjacent modules.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eConnect the bridge measurement lines to the 6-pin service plug utilizing standard ferrules or solid conductors with a stripping length of 8 to 9 mm.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003eEnsure the shield of the bridge cable is terminated at the cabinet entry gland plate or connected to a low-impedance ground block nearby.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 3px;\"\u003ePower on the EtherCAT segment and scan the module in the TwinCAT System Manager to configure the digital filters and sensor calibration properties.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106451087723,"sku":"ELM3502-0000","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/elm3502-0000-w42febxuzjt.png?v=1776244604","url":"https:\/\/www.plcprotech.com\/tr\/products\/beckhoff-elm3502-0000-elm-series-2-channel-analog-input-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}