{"product_id":"beckhoff-el3214-ethercat-terminal-4-channel-analog-input-rtd-module","title":"Beckhoff EL3214 EtherCAT Terminal 4-channel Analog Input RTD Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for high-precision temperature acquisition within EtherCAT networks, the \u003cstrong\u003eBeckhoff EL3214\u003c\/strong\u003e analog input terminal provides direct connection for up to four resistance sensors. This 16-bit resolution module features a highly compact, 12 mm High Density (HD) housing with integrated signal LEDs, saving critical space inside the control cabinet. The terminal dynamically supports both \u003cstrong\u003e2-wire and 3-wire connection technologies\u003c\/strong\u003e, ensuring flexible integration with standard RTD sensors including Pt100, Ni100, and various resistance transmitters. Powered directly via the E-bus, it delivers stable, linear measurement results with low noise levels and built-in limit value monitoring.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour independent analog input channels\u003c\/strong\u003e designed for RTD and resistance measurements.\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution \u003cstrong\u003e16-bit analog-to-digital conversion\u003c\/strong\u003e for precise thermal monitoring.\u003c\/li\u003e\n  \u003cli\u003eUniversal compatibility supporting Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, and KTY sensor series.\u003c\/li\u003e\n  \u003cli\u003eDynamic 2-wire or 3-wire wiring configurations (configured default as 3-wire).\u003c\/li\u003e\n  \u003cli\u003eIntegrated digital filter and configurable limit value monitoring via CoE registers.\u003c\/li\u003e\n  \u003cli\u003eRobust electrical isolation of up to 500 V between the E-bus and the signal channels.\u003c\/li\u003e\n  \u003cli\u003eSpace-saving High Density (HD) polycarbonate enclosure equipped with status diagnostic LEDs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Thermal Processing:\u003c\/strong\u003e Precise temperature tracking in furnaces, drying ovens, and heat-treatment chambers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVAC Control Systems:\u003c\/strong\u003e Monitoring of chilled water, supply air, and heating loop temperatures in plant automation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical and Plastics Manufacturing:\u003c\/strong\u003e Real-time temperature control on extruder barrels, injection molding machines, and chemical reactors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Generation \u0026amp; Machinery:\u003c\/strong\u003e Monitoring motor bearings, winding temperatures, and oil reservoir thermal profiles.\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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; color: #1a365d;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Reference\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEL3214\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEtherCAT Terminal (High Density Enclosure)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNumber of Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e4 channels\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNominal Resolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e16 bit (0.1 degC per digit)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSupported Sensors\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, KTY, and Resistance (10 Ohm to 4 kOhm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMeasuring Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e-200 to +850 degC (Pt sensors) \/ -60 to +250 degC (Ni sensors)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMeasurement Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e\u0026lt; +\/-0.5 degC (Pt sensors in 4x 3-wire operation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMeasuring Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e\u0026lt; 0.5 mA (dependent on load\/sensor resistance)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eapprox. 170 ms (default settings)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInput Filter Limit Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003etyp. 1 kHz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e500 V (E-bus \/ signal voltage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eE-Bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003etyp. 140 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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: 0.75rem; font-weight: bold;\"\u003eStorage Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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: 0.75rem; font-weight: bold;\"\u003eRelative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e95%, non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eVibration \/ Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProtection Rating \/ Installation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIP20 \/ variable positions supported\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eapprox. 60 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.25 kg (including packaging material)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eApprovals and Markings\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCE, UL, DNV GL\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWiring and Terminal 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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; color: #1a365d;\"\u003eConductor Type\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; color: #1a365d;\"\u003eCross-Section Range\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; color: #1a365d;\"\u003eAWG Size Range\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSolid Conductor (s)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.08 to 1.5 mm²\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAWG 28 to 16\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eStranded Conductor (st)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.25 to 1.5 mm²\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAWG 22 to 16\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eFlexible Conductor with Ferrule (f)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.14 to 0.75 mm²\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAWG 26 to 19\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eStripping Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\" colspan=\"2\"\u003e8 to 9 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe EL3214 represents a High Density (HD) upgrade path for installations previously utilizing 2-channel temperature modules like the EL3202. While it significantly increases terminal density (4 channels within a 12 mm width), note that the EtherCAT process image mapping differs. Ensure that the corresponding TwinCAT System Manager configurations are refreshed and PLC variables are remapped when migrating older layouts to the EL3214 structure.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eRTD measurements are highly sensitive to self-heating effects. The EL3214 limits its active measuring current to less than 0.5 mA to keep this error margin negligible. However, when placing sensors in stagnant or poorly conductive fluids, small temperature offsets may occur. If electrical grid interference (50 Hz or 60 Hz) affects signal stability, configure the integrated digital filter via CoE (CANopen over EtherCAT) settings to align with your local AC line frequency to achieve optimal noise rejection.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo ensure the rated accuracy of under +\/-0.5 degC in 3-wire configurations, all three connection leads must have the identical length, material, and cross-section. Differences in wire resistance between the signal and compensation lines directly introduce systematic offsets. Always use shielded, twisted-pair cabling for long-distance runs and ground the shield immediately at the entry point of the control panel on dedicated grounding rails, ensuring the DIN rail itself has a low-impedance connection to earth ground.\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 Disconnect all power sources from the E-bus and any external signal loops before inserting, removing, or wiring the EL3214 terminal. Failure to completely de-energize the system can cause permanent damage to the internal EtherCAT communication circuitry, leading to bus failure and equipment malfunction.\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: 0.75rem;\"\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=\"margin: 0; color: #2d3748;\"\u003eAlign the EL3214 terminal with the adjacent EtherCAT module on the standard 35 mm DIN rail (conforming to EN 60715).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 0.75rem;\"\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=\"margin: 0; color: #2d3748;\"\u003ePress the module firmly down onto the rail until the side double-slot lock and the bottom DIN rail locking mechanism click into place.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 0.75rem;\"\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=\"margin: 0; color: #2d3748;\"\u003ePrepare conductors to a stripping length of 8 to 9 mm. Insert a flathead screwdriver into the spring actuator slot to open the terminal clamp, push the conductor in, and release the tension to secure.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106518262123,"sku":"EL3214","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3214-32nxwrpsq2e.png?v=1776244466","url":"https:\/\/www.plcprotech.com\/pt\/products\/beckhoff-el3214-ethercat-terminal-4-channel-analog-input-rtd-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}