{"product_id":"beckhoff-il2301-b400-fieldbus-box-interbus-coupler-box","title":"Beckhoff IL2301-B400 Fieldbus Box Interbus Coupler Box","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned to bridge high-speed Interbus networks with local IP-Link extension modules, the \u003cstrong\u003eBeckhoff IL2301-B400\u003c\/strong\u003e fieldbus coupler box delivers robust decentralized control in demanding environments. This compact, IP67-rated module acts as an intelligent node that coordinates signals between the primary Interbus network and up to 120 local expansion modules via the high-speed IP-Link fiber-optic ring. By housing the control electronics within a fully sealed, mechanically resilient enclosure, the Beckhoff IL2301-B400 eliminates the need for protective electrical cabinets, enabling direct machine-mount installations in areas prone to moisture, dust, and physical vibration.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\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\u003eInterbus Integration:\u003c\/strong\u003e Direct connection to copper Interbus-S networks via dual industrial M23 connectors (9-pin male\/female).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP-Link Extension Ring:\u003c\/strong\u003e Manages up to 120 extension modules with efficient 64-byte input and 64-byte output data transfers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Signal Density:\u003c\/strong\u003e Supports up to 512 digital inputs and 512 digital outputs, alongside 28 analog inputs and outputs per station.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Environmental Protection:\u003c\/strong\u003e Certified IP65, IP66, and IP67 ratings for reliable operation in wet, dirty, or washdown conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKS2000 Compatibility:\u003c\/strong\u003e Diagnostic and parameter configuration facilitated through the standardized KS2000 serial interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\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 Direct mounting on robotic arms and welding fixtures without industrial enclosures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Handling \u0026amp; Conveyors:\u003c\/strong\u003e Decentralized sensor\/actuator routing along extensive conveyor structures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackaging Machinery:\u003c\/strong\u003e Wet area washdown zones requiring robust dust and moisture exclusion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFood \u0026amp; Beverage Processing:\u003c\/strong\u003e Distributed I\/O setups in high-humidity zones requiring IP67 washdown performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold; color: #1a365d;\"\u003eSpecification\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: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel \/ Article Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIL2301-B400\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eFieldbus Protocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eInterbus (Interbus-S)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eBus Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1 x M23 female 9-pin, 1 x M23 male 9-pin\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eControl Voltage Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC (acceptable range 20 to 29 V DC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eBox Power Supply Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e85 mA + sensor consumption (Max. 0.5 A total)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Supply Connections\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFeed: 1 x M8 male (4-pin); Downstream: 1 x M8 female (4-pin)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIsolation Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eControl voltage to fieldbus: None\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConfiguration Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eKS2000 serial interface via special connector\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-25 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eIP Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP65 \/ IP66 \/ IP67 (conforms to EN 60529)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eVibration \/ Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e30 mm x 126 mm x 26.5 mm (approximate, excluding connectors)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.35 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.65 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003ePower Port Connections (M8 Ports)\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold; color: #1a365d;\"\u003ePin Number\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold; color: #1a365d;\"\u003eAssignment\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold; color: #1a365d;\"\u003eDescription\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: 8px;\"\u003ePin 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e+24 V DC Control\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFeed for logic operations and internal box control\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePin 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e+24 V DC Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eSupply for connected output channels and field devices\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePin 3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGND Control\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eReference potential for internal control and logic circuit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px;\"\u003ePin 4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eGND Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eReference potential for output load actuators\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe B400 variant specifically uses copper Interbus M23 interfaces. Note that Beckhoff also manufactured B408 variants with fiber optic connections. Ensure your existing cabling system matches the copper physics. If substituting older IL2301 units, confirm your local IP-Link fiber lengths; damaged or dirty IP-Link connectors can result in loss-of-link errors that are hard to diagnose over the primary Interbus diagnostics.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhile the device operates without a protective enclosure, mounting it on high-temperature machinery or in direct sunlight can cause its internal temperature to exceed the +55 degC limit. Provide protective shielding or standoffs when mounting on heat-generating surfaces. Keep track of sensor current draws on the local IP-Link expansion modules; exceeding 0.5 A total on the control power circuit will cause brownouts and communication dropped frames.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways use original Beckhoff IP-Link cables and observe minimum bend radiuses. Sharp bends in plastic optical fibers (POF) result in excessive attenuation, causing sporadic I\/O errors. When preparing Interbus M23 connectors, shield continuity must be run fully to the metallic connector shell to minimize high-frequency noise interference from nearby Variable Frequency Drives (VFDs).\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 12px; margin-bottom: 1.5rem; border-radius: 4px;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL SAFETY WARNING\u003c\/strong\u003e\n  \u003cspan style=\"color: #9b2c2c;\"\u003eDe-energize all power sources (both Control Voltage and Load Voltage) before physically mounting or routing the M23 and M8 connectors. Hot-plugging industrial M8 or M23 connections can cause arcing, damaging sensitive optical interface drivers and corrupting EEPROM parameters.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eMount the coupler box directly to the machine chassis using two M4 bolts. Ensure the flat rear face is seated tightly against a clean, paint-free metal surface to maximize thermal dissipation and ground paths.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eInsert and secure the IP-Link plastic optical fiber (POF) cable links. Ensure clean, perpendicular cuts on the fiber ends to minimize signal loss, and push the connectors in until they lock with an audible click.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003eConnect the incoming and outgoing Interbus M23 connectors, manually tightening the metal knurled rings to maintain IP67 seal integrity. Avoid utilizing power tools to tighten connectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1.5rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003ePlug in the M8 power cables, ensuring independent routing for Control and Load voltages to minimize electromagnetic cross-talk on the sensor lines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106457051499,"sku":"IL2301-B400","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/il2301-b400-yhkb5m5d15w.png?v=1776244844","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-il2301-b400-fieldbus-box-interbus-coupler-box","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}