{"product_id":"el3051-beckhoff-ethercat-terminal-4-20ma-analog-input-module","title":"EL3051 Beckhoff EtherCAT Terminal: 4-20mA Analog Input Module","description":"\u003ch3\u003eProduct Profile\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #2e7d32;\"\u003e\u003cstrong\u003eEL3051\u003c\/strong\u003e\u003c\/span\u003e is a high-precision EtherCAT terminal engineered for single-ended 4…20 mA analog signal acquisition. This unit provides localized power to field-side measuring transducers while maintaining 500 V electrical isolation between the E-bus and signal electronics. Designed for demanding industrial environments, the \u003cspan style=\"color: #2e7d32;\"\u003e\u003cstrong\u003eEL3051\u003c\/strong\u003e\u003c\/span\u003e ensures deterministic signal transmission and superior noise immunity within distributed automation networks.\u003c\/p\u003e\n\u003ch3\u003eEngineering Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\/Model:\u003c\/strong\u003e Beckhoff \u003cspan style=\"color: #2e7d32;\"\u003e\u003cstrong\u003eEL3051\u003c\/strong\u003e\u003c\/span\u003e (Terminal) \/ ES3051 (Pluggable Version)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Range:\u003c\/strong\u003e 4…20 mA current loop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 12-bit (16-bit internal representation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion Rate:\u003c\/strong\u003e 0.625 ms default (user-configurable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Resistance:\u003c\/strong\u003e 85 Ω (typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 1 kHz filter limit frequency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e \u0026lt; ±0.3 % relative to full scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDielectric Strength:\u003c\/strong\u003e Max 30 V input \/ 500 V isolation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Rating:\u003c\/strong\u003e IP20, operating range -25 °C to +60 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e CE, UL, ATEX (II 3 G Ex nA IIC T4 Gc), IECEx\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic \u0026amp; Operational Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard Monitoring:\u003c\/strong\u003e Integrated LED array provides instant visual status of channel health.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Detection:\u003c\/strong\u003e Dedicated error circuitry identifies overload conditions and broken wire loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Image:\u003c\/strong\u003e Supports compact or standard process image maps for bandwidth optimization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltering:\u003c\/strong\u003e Features activatable FIR\/IIR digital filtering for signal conditioning in electrically noisy environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit Monitoring:\u003c\/strong\u003e Integrated threshold alerts prevent upstream system stress during sensor failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIntegration \u0026amp; Deployment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e Ideal for process automation, flow monitoring, pressure sensing, and chemical measurement systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 35 mm DIN rail (EN 60715) with secure double-slot locking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Versatility:\u003c\/strong\u003e Supports solid, stranded, or ferruled conductors (0.08–2.5 mm²) with intuitive spring-actuated terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping \u0026amp; Warranty:\u003c\/strong\u003e Rapid 24-48 hour dispatch via FedEx, UPS, or DHL. 12-month performance guarantee included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eIn our experience at Global PLC Spare HUB, the \u003cspan style=\"color: #2e7d32;\"\u003e\u003cstrong\u003eEL3051\u003c\/strong\u003e\u003c\/span\u003e excels in \"fit-and-forget\" sensing applications. It is particularly suited for legacy-to-digital plant retrofits where standard 4-20mA loops remain the industry standard. Because the \u003cspan style=\"color: #2e7d32;\"\u003e\u003cstrong\u003eEL3051\u003c\/strong\u003e\u003c\/span\u003e sources power for the transducer directly through the power contacts, it eliminates the need for auxiliary external power supplies, drastically reducing cabinet wiring density. This module is the preferred choice for engineers managing high-density analog arrays in modular factory floor architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical FAQ \u0026amp; Selection Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I resolve a \"broken wire\" diagnostic error on the EL3051?\u003c\/strong\u003e\u003cbr\u003eFirst, verify your loop continuity using a multimeter. If the loop is intact, inspect the terminal spring contact to ensure the conductor is fully seated and the wire jacket was stripped to the required 8-10 mm length.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the ES3051 necessary for my application?\u003c\/strong\u003e\u003cbr\u003eSelect the ES3051 if your maintenance workflow requires rapid hot-swapping of terminals. The ES-series utilizes pluggable wiring connectors that allow you to remove the module without disconnecting the field wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the EL3051 handle signal bursts above 1 kHz?\u003c\/strong\u003e\u003cbr\u003eThe hardware limit is 1 kHz. If your sensors operate at higher frequencies, we recommend using a higher-bandwidth analog terminal to avoid significant signal aliasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I maximize signal accuracy in high-EMI zones?\u003c\/strong\u003e\u003cbr\u003eUtilize the activatable IIR\/FIR filters in the terminal's configuration settings. Additionally, ensure your cable shields are correctly bonded to the earth terminal to mitigate induction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I use a separate supply terminal (EL9xxx) for this module?\u003c\/strong\u003e\u003cbr\u003eIf you are operating in an environment with high power fluctuations or if you need to create a dedicated, galvanically isolated segment for sensors, using an EL9xxx supply terminal is best practice to protect your primary E-bus segment.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/EL3051_9fddafbf-edc1-4105-80c4-ff003cb09c2f.png?v=1780559652\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Beckhoff","offers":[{"title":"Default Title","offer_id":45169443995830,"sku":"EL3051","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/EL3051_7ccdc27c-1bc8-4013-b240-5f22b05191f7.jpg?v=1780559640","url":"https:\/\/www.plcsparehub.com\/ar\/products\/el3051-beckhoff-ethercat-terminal-4-20ma-analog-input-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}