{"product_id":"beckhoff-el3681-ethercat-terminal-analog-input-multimeter-module","title":"BECKHOFF EL3681 EtherCAT Terminal Analog Input Multimeter Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-precision electrical measurement, the \u003cstrong\u003eEL3681\u003c\/strong\u003e EtherCAT Terminal functions as an integrated digital multimeter, enabling direct AC and DC electrical measurements within a standard EtherCAT I\/O station. This 1-channel analog input terminal processes signal voltages up to 300 V AC\/DC and currents up to 10 A, making it highly suitable for comprehensive power and load monitoring applications.\u003c\/p\u003e\n\u003cp\u003eThe module supports both manual and automatic range selection across multiple voltage (300 mV to 300 V) and current (100 mA to 10 A) measurement intervals. Utilizing advanced measurement procedures, the \u003cstrong\u003eEL3681\u003c\/strong\u003e performs arithmetic averaging for DC signals and True RMS (root-mean-square) calculations for AC signals. Data is transmitted directly to the controller via a 32-bit process image for high-accuracy analysis.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Range Selection:\u003c\/strong\u003e Dynamically adjusts measuring ranges for optimal resolution and accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Digitization:\u003c\/strong\u003e Provides 18-bit resolution plus sign across all voltage and current measurement fields.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Measurement Modes:\u003c\/strong\u003e True RMS calculation for AC signals and arithmetic averaging for DC signals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Protection:\u003c\/strong\u003e Equipped with an onboard, replaceable 1.25 A fuse and a designated spare fuse compartment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Isolation:\u003c\/strong\u003e Electrical isolation of up to 1500 V between the E-bus and the field potential.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial power and load monitoring systems.\u003c\/li\u003e\n  \u003cli\u003eAutomated test benches and laboratory testing setups.\u003c\/li\u003e\n  \u003cli\u003eMachine tool condition monitoring and diagnostics.\u003c\/li\u003e\n  \u003cli\u003eEnergy management systems in production facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBeckhoff\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePart Number \/ Model\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEL3681\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal (1-channel analog input, multimeter)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasurement Channels\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 voltage or 1 current (10 A \/ 1 A)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasuring Range (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e300 mV, 3 V, 30 V, 300 V AC\/DC (max. 300 V)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasuring Range (Current)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e100 mA, 1 A, 10 A via high current path (max. 10 A)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e18 bit + sign in each measurement range\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasuring Error\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.01% DC voltage measurement at 40 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInternal Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e3 mOhm \/ 0.2 Ohm \/ 12.5 MOhm (range-dependent)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConversion Time\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.5 s preset (1 s during range switching); min. 65 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eE-bus Current Consumption\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e150 mA typical\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1500 V (E-bus \/ field potential)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProcess Image Width\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e32 bit data, 16 bit control\/status\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEnclosure Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate (compact housing with signal LEDs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eApprox. 70 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-25 to +60 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eConnection Parameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWiring Method\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver (solid, flexible, or ferruled conductors)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSolid\/Stranded Wire Section\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFerruled Wire Section\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStripping Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Load Power Contacts\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eMax. 10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEL3681\u003c\/strong\u003e EtherCAT Terminal is designed for direct mounting on 35 mm DIN rails conforming to EN 60715. Side-by-side mounting is achieved securely via an integrated double slot and key connection mechanism. Ensure the mounting position provides adequate heat dissipation to keep operating temperatures within the -25 to +60 degC range. For wiring, use correct stripping lengths of 8 to 9 mm to guarantee secure clamping contact within the spring terminals.\u003c\/p\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE:\u003c\/strong\u003e Conforms to relevant European directives.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEMC Immunity:\u003c\/strong\u003e Conforms to EN 61000-6-2.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEMC Emission:\u003c\/strong\u003e Conforms to EN 61000-6-4.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Resistance:\u003c\/strong\u003e Conforms to EN 60068-2-6.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShock Resistance:\u003c\/strong\u003e Conforms to EN 60068-2-27.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106466095467,"sku":"EL3681","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3681-wwce5dvnnjo.png?v=1776244500","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el3681-ethercat-terminal-analog-input-multimeter-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}