{"product_id":"beckhoff-el1918-2200-twinsafe-ethercat-terminal-8-channel-digital-input","title":"Beckhoff EL1918-2200 TwinSAFE EtherCAT Terminal 8-channel Digital Input","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nDesigned to integrate directly into the EtherCAT I\/O system, the \u003cstrong\u003eBeckhoff EL1918-2200\u003c\/strong\u003e is an ultra-compact TwinSAFE terminal engineered for the decentralized connection of safety-related sensors. This 8-channel digital input module transmits safe signals via Safety over EtherCAT (FSoE) to a TwinSAFE Logic-capable component, enabling reliable execution of safety functions in complex industrial automation architectures. Featuring 1-wire or 2-wire connection technology, the module combines high-density packaging with robust processing diagnostics to meet strict global safety metrics.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8 Fail-Safe Digital Inputs:\u003c\/strong\u003e Supports direct connection of safe sensors and contacts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFSoE Protocol Integration:\u003c\/strong\u003e Operates seamlessly via TwinSAFE \/ Safety over EtherCAT communication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Wiring:\u003c\/strong\u003e Compatible with both 1-wire and 2-wire termination schemes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Density Housing:\u003c\/strong\u003e 12 mm width optimizes valuable DIN rail footprint.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStatus Diagnostics:\u003c\/strong\u003e Dedicated LED status indicators on the front panel for bus communication and error tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomotive Assembly Lines:\u003c\/strong\u003e Interlocking safety gates, light curtains, and emergency stop circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobotic Cells:\u003c\/strong\u003e Processing safe position feedback and functional safety signals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Handling Systems:\u003c\/strong\u003e Distributed emergency-off systems over extended physical networks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Multi-axis safety zone management and guard monitoring.\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; text-align: left; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eValue \/ Specification\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: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBeckhoff\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEL1918-2200\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSafety Standards\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEN ISO 13849-1:2015 (Cat. 4, PL e), EN 61508:2010 (SIL 3)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eProtocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTwinSAFE \/ Safety over EtherCAT (FSoE)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNumber of Safe Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eConnection Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1-\/2-wire\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eFault Response Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e≤ watchdog time (parameterizable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eE-bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003etyp. 165 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePower Contacts Current Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003emax. 10 A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eIP Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP20\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eHousing Material\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePolycarbonate (HD housing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSolid Wire Cross-Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.08 to 1.5 mm² (AWG 28 to 16)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eStranded Wire Cross-Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.25 to 1.5 mm² (AWG 22 to 16)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eFerrule Wire Cross-Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.14 to 0.75 mm² (AWG 26 to 19)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eStripping Length\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e8 to 9 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eapprox. 50 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.15 kg (single unit packaging)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhile the standard EL1908 offers 8 digital inputs, the \u003cstrong\u003eEL1918-2200\u003c\/strong\u003e variant utilizes high-density termination for complex safety mapping and features optimized processing logic parameters. Note that this terminal requires a valid TwinSAFE Logic master (such as an EL6910 or a TwinCAT safety PLC configuration) to execute safe logic functions. Compatibility requires TwinCAT 3.1 or higher for optimal parameter configuration and FSoE protocol handling.\n\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nA major deployment hazard involves E-bus power budgeting. The \u003cstrong\u003eEL1918-2200\u003c\/strong\u003e consumes typically 165 mA from the E-bus. In large nodes populated with multiple safety or analog slices, the internal 5V supply line can quickly saturate. Always recalculate your E-bus current draw in TwinCAT System Manager; insert an EL9410 power supply terminal if the total current exceeds the couplers capacity (typically 2A for standard EtherCAT couplers).\n\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhen wiring the High Density (HD) spring connections, ensure that ferrules are crimped square and do not exceed 0.75 mm². Use a specialized flat-blade screwdriver to actuate the spring contacts for stranded conductors without pre-crimped ferrules. Keep the stripping length strictly between 8 and 9 mm to avoid exposing bare copper or preventing full contact seating, which can cause intermittent safety channel faults.\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize the entire control cabinet before inserting or removing the terminal. Failure to do so can cause permanent damage to the internal E-bus transceiver and could initiate unintended safety-system activations or system faults.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\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; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eMount the terminal onto a standard 35 mm DIN rail (conforming to EN 60715). Align the integrated double slot-and-key connection with adjacent terminals and press down until you hear a secure click.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\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; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eSecure the terminal assembly horizontally using an end bracket to prevent lateral shifting during operation under high vibration.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\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; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eConnect safe sensors using either 1-wire or 2-wire architectures. Standard solid-core wires can be pushed directly into the contact terminal without tool actuation.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\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; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003ePower up the system and verify the status LEDs. Configure safety addresses, watchdog parameters, and input mapping via TwinCAT Safety Editor before operational commissioning.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106444206443,"sku":"EL1918-2200","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el1918-2200-3w1d3ikxawv.png?v=1776244391","url":"https:\/\/www.plcprotech.com\/pt\/products\/beckhoff-el1918-2200-twinsafe-ethercat-terminal-8-channel-digital-input","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}