{"product_id":"er5101-0002-beckhoff-ethercat-box-1-channel-incremental-encoder-interface","title":"ER5101-0002 Beckhoff EtherCAT Box 1-Channel Incremental Encoder Interface","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nEngineered for precise motion control feedback in harsh industrial zones, the Beckhoff ER5101-0002 EtherCAT Box functions as a robust 1-channel incremental encoder interface. Housed in a heavy-duty zinc die-cast enclosure, this field-mountable unit enables direct acquisition of digital differential (RS422) or single-ended (TTL) encoder signals without requiring a protective electrical cabinet. Its integrated 16-bit or 32-bit counter tracks high-speed pulses up to 4 million increments per second, ensuring real-time position and velocity data are synchronized across the control network using standard distributed clocks.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eFeatures\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\u003eMulti-Protocol Compatibility:\u003c\/strong\u003e Connects seamlessly with RS422 differential encoders, single-ended TTL inputs, and pulse generator systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial-Grade Enclosure:\u003c\/strong\u003e Cast-zinc housing provides IP65, IP66, and IP67 protection ratings, resisting oil, moisture, and mechanical impact.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistributed Clocks (DC):\u003c\/strong\u003e Hardware-based clock synchronization ensures microsecond-level synchronization accuracy across the EtherCAT network.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurable Counter Options:\u003c\/strong\u003e Supports flexible 16-bit or 32-bit binary counting with dynamic read, set, and enable command profiles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Sensor Power:\u003c\/strong\u003e Features a dedicated 5 V DC, 150 mA auxiliary output to directly power connected encoders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eDecentralized positioning axes on conveyor belts and material handling networks.\u003c\/li\u003e\n  \u003cli\u003eRotary speed and angular feedback on heavy machinery without control enclosures.\u003c\/li\u003e\n  \u003cli\u003eTool turret and spindle position logging in multi-axis machining centers.\u003c\/li\u003e\n  \u003cli\u003eSynchronized multi-conveyor speed matching in food processing and packaging lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\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: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\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; border-right: 1px solid #e2e8f0;\"\u003eModel Identifier\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eER5101-0002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCommunication Protocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEtherCAT\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eFieldbus Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2 x M8 socket, shielded, screw-lock connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eSupported Signal Types\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDifferential RS422, Single-Ended TTL, pulse generator, counter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eSignal Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1 incremental encoder channel (A, A-inv, B, B-inv, C, C-inv)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eSystem Nominal Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 V DC (-15 percent \/ +20 percent)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eSensor Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e5 V DC, maximum 150 mA (VCC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eLimit Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e4,000,000 increments\/second (with 4-fold evaluation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInternal Clock Mode\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDistributed Clocks (DC) supported\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCurrent Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTypical 130 mA from US + sensor load\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e500 V RMS (test voltage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eIngress Protection Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\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: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 to 55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eStorage Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\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: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eVibration \/ Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\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: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCompliance Standards\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCE, UL\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e265 grams\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2.0 kg (with protective packaging)\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; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eConnections and Interfaces\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: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePort \/ Connection Type\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003ePin \/ Channel Interface Mapping\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; border-right: 1px solid #e2e8f0;\"\u003eEtherCAT In\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eM8 socket, 4-pin, shielded, d-coded or standard screw-lock\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eEtherCAT Out\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eM8 socket, 4-pin, shielded, screw-lock downstream coupling\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePower Supply Input (US\/UP)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eM8 male plug, 4-pin feed (US: Control supply, UP: Load supply)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePower Supply Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eM8 female socket, 4-pin downstream loop through\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eEncoder Signals\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDirect assignments for differential inputs A, A (inv), B, B (inv), C, C (inv)\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; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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;\"\u003e\nThe metal-clad ER5101-0002 is functionally identical to the plastic-housed EP5101-0002. They share the same electronic register architecture, identical process image mapping, and utilize the same Beckhoff TwinCAT ESI (EtherCAT Slave Information) XML configuration files. You can drop this zinc die-cast unit directly into networks designed for the EP variant without requiring modifications to your PLC code or TwinCAT tree configurations.\n\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;\"\u003e\nBecause the ER5101-0002 has a conductive metallic housing, it must be properly bonded to the machine frame to ensure reliable EMC performance. Mounting the module to painted or insulated frame rails without a dedicated grounding strap can introduce signal noise on high-frequency RS422 encoder runs, leading to false counter increments. Pay close attention to current drawing limits: if the encoder draws more than 150 mA from the VCC pin, the internal auto-reset PTC fuse will trip, temporarily disabling encoder feedback.\n\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;\"\u003e\nWhen configuring this module within TwinCAT, make sure to enable the 4-fold evaluation parameter inside the CoE (CanOpen over EtherCAT) online register window to utilize the full 4 million increments\/s capacity. When running long encoder cable lengths, we recommend using high-quality shielded twisted-pair cables, routing the shield directly through the metallic M8 connector casing.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003e\n    Before installing, removing, or wiring any EtherCAT Box system, ensure the entire control architecture's main 24 V DC power supply is de-energized. Do not plug or unplug M8 fieldbus or encoder connections while the system is powered, as electrical arcing may damage internal communication chips or corrupt slave configurations.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 12px;\"\u003e1\u003c\/span\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the zinc die-cast box directly to a flat, grounded machine surface using M3 or M4 screws. Ensure the back of the metal body makes firm electrical contact with the functional earth of the system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 12px;\"\u003e2\u003c\/span\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the incoming EtherCAT network cable to the 'EtherCAT In' M8 port. Hand-tighten the M8 locking collar to maintain the IP67 moisture seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 12px;\"\u003e3\u003c\/span\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the downstream EtherCAT devices to the 'EtherCAT Out' port or terminate the line using an M8 bus terminator if this is the final node.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 12px;\"\u003e4\u003c\/span\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eWire the incremental encoder interface to the sensor ports using shielded M8 cables. Ensure the pinout matches the A\/B\/C channel assignments.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 12px;\"\u003e5\u003c\/span\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003ePlug in the 24 V DC power feed into the male power M8 socket. Apply power and scan the EtherCAT network in TwinCAT to configure operational parameters.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106478481771,"sku":"ER5101-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/er5101-0002-g0pahigmbd3.png?v=1776244804","url":"https:\/\/www.plcprotech.com\/tr\/products\/er5101-0002-beckhoff-ethercat-box-1-channel-incremental-encoder-interface","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}