{"product_id":"el3122-beckhoff-ethercat-terminal-2-channel-analog-input-4-20-ma-16-bit-differential","title":"EL3122 | Beckhoff EtherCAT Terminal 2-Channel Analog Input 4–20 mA 16-Bit Differential","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"101\" data-end=\"438\"\u003eThe Beckhoff EL3122 is a 2-channel analog input EtherCAT Terminal designed for precise current measurement in the 4–20 mA range. Featuring 16-bit resolution, differential inputs, and 500 V electrical isolation, it ensures accurate signal acquisition and reliable data transmission in industrial automation systems.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 686px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eBeckhoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eIndustrial Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eEL3122\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eEtherCAT Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e2-channel analog input for current measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e2 (differential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eSignal Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e16 bit (including sign)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eConversion Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e~50 µs (fast mode ~35 µs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eInternal Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eTyp. 85 Ω + diode voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eInput Filter Limit Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003e5 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eCommon Mode Voltage (UCM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003eMax. 10 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eMeasurement Error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e\u0026lt; ±0.3% (relative to full-scale value)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eSurge Voltage Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003eMax. 35 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e500 V (E-bus\/signal voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eDistributed Clocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eVia the E-bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eCurrent Consumption (E-bus)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003eTyp. 170 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eBit Width in Process Image\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003eInputs: 8 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003eFIR\/IIR filters, limit value monitoring, standard and compact process image\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eProtection Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 39.2px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 39.2px;\"\u003e-25°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003e95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 26.7615%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.9238%; height: 19.6px;\"\u003eApprox. 55 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eEL3122\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe EL3122 belongs to Beckhoff’s EL3xxx EtherCAT Terminal series and is engineered for accurate current signal measurement from analog sensors and transmitters. It supports two differential inputs in the 4–20 mA range, digitizing the measured signals at a resolution of 16 bits for precise and stable data acquisition. Integrated electrical isolation between the E-bus and signal voltage enhances system reliability and prevents interference. The EL3122 supports distributed clock functionality for synchronous data collection across multiple channels, ensuring deterministic system performance. Its high input filter frequency of 5 kHz and fast conversion time of 50 µs allow accurate signal capture even in dynamic processes. Additional features such as activatable FIR\/IIR filters and limit value monitoring make it suitable for complex automation applications requiring both performance and diagnostic flexibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual Differential Channels: Two isolated analog inputs for measuring 4–20 mA current signals from sensors, transducers, and process devices.\u003c\/li\u003e\n\u003cli\u003eHigh Measurement Accuracy: 16-bit resolution and ±0.3% error tolerance ensure precise signal acquisition for critical applications.\u003c\/li\u003e\n\u003cli\u003eElectrical Isolation: 500 V isolation between field and bus systems guarantees safe and interference-free operation.\u003c\/li\u003e\n\u003cli\u003eFast Signal Processing: Conversion time of 50 µs (35 µs in fast mode) supports rapid and dynamic process monitoring.\u003c\/li\u003e\n\u003cli\u003eWide Input Compatibility: Handles standard 4–20 mA current loops, compatible with industrial transmitters and actuators.\u003c\/li\u003e\n\u003cli\u003eIntegrated Filtering and Monitoring: Configurable FIR\/IIR filters and limit value alarms improve signal quality and fault detection.\u003c\/li\u003e\n\u003cli\u003eDistributed Clock Synchronization: Enables deterministic data sampling across multiple terminals for coordinated process control.\u003c\/li\u003e\n\u003cli\u003eRugged Industrial Design: Operates from -25°C to +60°C with 95% humidity resistance, suitable for harsh environments.\u003c\/li\u003e\n\u003cli\u003eCompact Modular Integration: Fits seamlessly into EtherCAT networks for flexible, scalable, and space-efficient automation layouts.\u003c\/li\u003e\n\u003cli\u003eSurge Protection and Overvoltage Resistance: Withstands up to 35 V input surge to ensure long-term reliability in noisy systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe EL3122 delivers the reliability and precision required for process automation, current monitoring, and signal conditioning in EtherCAT-based industrial control systems.\u003c\/p\u003e","brand":"Beckhoff","offers":[{"title":"Default Title","offer_id":49105081893120,"sku":"EL3122","price":535.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/el3122_es3122__web_preview.png?v=1785539695","url":"https:\/\/alotechparts.com\/products\/el3122-beckhoff-ethercat-terminal-2-channel-analog-input-4-20-ma-16-bit-differential","provider":"Alo Tech Solutions","version":"1.0","type":"link"}