{"product_id":"beckhoff-el3122-ethercat-terminal","title":"BECKHOFF EL3122 EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF EL3122\u003c\/strong\u003e is a 2-channel analog input EtherCAT Terminal designed for highly precise measurement of current signals in the 4 to 20 mA range. Both channels operate as differential inputs, providing a high-resolution 16-bit digital representation of the measured physical values. This terminal is integrated into the EtherCAT system via the standard E-bus connection, enabling fast communication and high-speed data acquisition.\u003c\/p\u003e\n\n\u003cp\u003eTo ensure optimal signal processing, the \u003cstrong\u003eBECKHOFF EL3122\u003c\/strong\u003e supports Distributed Clocks (DC) for highly synchronized sampling across the network. It features flexible configuration options, including activatable digital filters (FIR\/IIR) to smooth input signals and eliminate high-frequency interference. Additionally, the terminal supports limit value monitoring and offers both standard and compact process images to optimize network bandwidth utilization.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo differential analog input channels.\u003c\/li\u003e\n  \u003cli\u003ePrecise 16-bit resolution (including sign) for high-accuracy measurements.\u003c\/li\u003e\n  \u003cli\u003eStandard 4 to 20 mA signal current range.\u003c\/li\u003e\n  \u003cli\u003eDistributed Clocks (DC) support for microsecond-level synchronization.\u003c\/li\u003e\n  \u003cli\u003eConfigurable digital filters (FIR and IIR) and limit value monitoring.\u003c\/li\u003e\n  \u003cli\u003eCompact 12 mm housing width with status indicator LEDs.\u003c\/li\u003e\n  \u003cli\u003eElectrical isolation of 500 V between the E-bus and the signal path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-speed industrial process monitoring and control.\u003c\/li\u003e\n  \u003cli\u003ePrecise current measurements from field transmitters, flow meters, and pressure sensors.\u003c\/li\u003e\n  \u003cli\u003eSynchronized data acquisition in distributed control system topologies.\u003c\/li\u003e\n  \u003cli\u003eAnalog sensor integration in hazardous locations (Zone 2).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModel\u003c\/td\u003e\n      \u003ctd\u003eEL3122\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n      \u003ctd\u003e2 differential inputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTechnology\u003c\/td\u003e\n      \u003ctd\u003eDifferential input\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBit Width in Process Image\u003c\/td\u003e\n      \u003ctd\u003eInputs: 8 bytes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSpecial Features\u003c\/td\u003e\n      \u003ctd\u003eStandard and compact process image, activatable FIR\/IIR filters, limit value monitoring\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eElectrical and Signal\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Current\u003c\/td\u003e\n      \u003ctd\u003e4 to 20 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e16 bit (including sign)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Error\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; ±0.3% (relative to full scale value)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Resistance\u003c\/td\u003e\n      \u003ctd\u003eTypically 85 ohms + diode voltage\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Filter Limit Frequency\u003c\/td\u003e\n      \u003ctd\u003e5 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCommon-Mode Voltage (Ucm)\u003c\/td\u003e\n      \u003ctd\u003eMax. 10 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSurge Voltage Resistance\u003c\/td\u003e\n      \u003ctd\u003eMax. 35 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003e~ 50 microseconds (fast mode ~ 35 microseconds)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n      \u003ctd\u003e500 V (E-bus \/ signal voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003ePower Supply and Bus\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Supply\u003c\/td\u003e\n      \u003ctd\u003eVia the E-bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption E-bus\u003c\/td\u003e\n      \u003ctd\u003eTypically 170 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption Power Contacts\u003c\/td\u003e\n      \u003ctd\u003eNone\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Load Power Contacts\u003c\/td\u003e\n      \u003ctd\u003eImax: 10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDistributed Clocks (DC)\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eMechanical and Installation\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x H x D)\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\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eApprox. 55 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHousing Material\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMounting\u003c\/td\u003e\n      \u003ctd\u003e35 mm DIN rail conforming to EN 60715 with lock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWiring Technology\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSolid Conductor Connection Cross-section\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\u003eFlexible Conductor Connection Cross-section\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\u003eFerrule Connection Cross-section\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\u003eStripping Length\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eEnvironmental and Certifications\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 to +60 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd\u003e95%, no condensation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Class\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVibration\/Shock Resistance\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEMC Immunity\/Emission\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals and Markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL, ATEX\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEx Marking\u003c\/td\u003e\n      \u003ctd\u003eII 3 G Ex nA IIC T4 Gc\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the system and all connected power supplies are de-energized before mounting, wiring, or removing any modules.\u003c\/li\u003e\n  \u003cli\u003eMount the \u003cstrong\u003eBECKHOFF EL3122\u003c\/strong\u003e onto a 35 mm DIN rail (conforming to EN 60715). Align the terminal housing carefully with the neighboring modules using the double slot and key connection.\u003c\/li\u003e\n  \u003cli\u003eEnsure the terminal locks securely into place with a clear click to establish reliable E-bus electrical contact.\u003c\/li\u003e\n  \u003cli\u003eStrip the input signal conductors to a length of 8 to 9 mm. Insert the wire into the connection point by using a screwdriver to actuate the tension clamp.\u003c\/li\u003e\n  \u003cli\u003eConnect the differential current signals (4 to 20 mA) to the assigned terminals according to your system wiring diagram. Ensure proper polarity to avoid measurement errors.\u003c\/li\u003e\n  \u003cli\u003eFor applications subject to electrical noise, use shielded cabling and terminate the shield correctly at the defined ground potential.\u003c\/li\u003e\n  \u003cli\u003eRe-energize the system and perform initial system configuration and diagnostic checks in the TwinCAT engineering environment.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106494865771,"sku":"EL3122","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3122-ixgsyiijnqx.png?v=1776244443","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el3122-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}