Name: 8-ch Ethernet Relay Module (B) With Digital Input, Modbus RTU/Modbus TCP Protocol, PoE Port Communication
Brand: Waveshare
SKU: WVSH0595
Price: 4899.99 INR
Availability: InStock

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{"id":10312693580093,"title":"8-ch Ethernet Relay Module (B) With Digital Input, Modbus RTU\/Modbus TCP Protocol, PoE Port Communication","handle":"8-ch-ethernet-relay-module-b-with-digital-input-modbus-rtu-modbus-tcp-protocol-poe-port-communication","description":"\u003ch2 style=\"text-align: center;\"\u003e8-ch Ethernet Relay Module (B)\u003c\/h2\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWith Digital Input\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eEthernet Port Communication, Modbus Protocol, PoE Power Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), front view\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-1.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eThis product is an industrial 8-ch relay module controlled via Ethernet port, with 8-ch digital input, adopts Modbus RTU\/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe Modbus POE ETH Relay (B) is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and\/or applications with high communication requirements.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 82.1429%; height: 539px; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eFlash Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports flash-on and flash-off function; relay can be turned ON for a specific duration and then automatically turned OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eSupports DC 7~36V wide range input and PoE power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports MQTT protocol with Alibaba Cloud MQTT demo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eIsolation Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eOnboard optocoupler isolation to prevent interference from high-voltage circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eRelay Driver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eDedicated relay driver chip with built-in flyback diode protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eDigital Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports passive and active digital input with bi-directional optocoupler isolation and built-in debouncing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003eControl Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eSupports digital input linkage control or toggle control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eProtection Circuit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eReverse-proof circuit to prevent damage from incorrect connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003eRelay Specification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eHigh quality relay, contact rating ≤10A 250VAC \/ 30VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eRail-mounted ABS plastic enclosure for easy and safe installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003e4 LEDs and network indicators for MCU status and signal transmission status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePrimary function\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports reading digital input by sending Modbus RTU protocol commands via Ethernet for relay output control\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), primary function\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-3.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eSupports Multiple Communication Modes, Adopts Modbus Protocol\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports TCP Server \/ TCP Client \/ UDP Mode \/ UDP Multicast \/ HTTP \/ MQTT\u003cbr\u003eSupports Modbus RTU protocol\/Modbus TCP protocol\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports Modbus RTU protocol\/Modbus TCP protocol\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-4.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMulti Configuration Methods\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports software and Web Browser Configuration, Obtaining Dynamic IP Via DHCP, connecting to domain name server via DNS protocol\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports multi configuration methods\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-7.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMulti Power Supply Options, Wide Range Power Input\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eDC Power port: directly uses a power plug for power supply; Screw terminal: DC 7~36V wide range power input; PoE port: IEEE 802.3af PoE compliant\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports multi power supply methods\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-9.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e* The external power supply adapter is NOT included by default, it is recommended to purchase 12V power supply if you need it.\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eDigital Input\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), digital input connection demo\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-11.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eInterfaces \u0026amp; Indicators\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eWith Multiple LED Indicators, Easy To Monitor The Operating Status\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), Interfaces \u0026amp; Indicators instruction\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-13.jpg\"\u003e\u003c\/p\u003e\n\u003ctable height=\"216\" style=\"border-collapse: collapse; width: 82.1429%; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid; width: 29.5645%; text-align: center;\"\u003e\u003cstrong\u003eRUN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; width: 70.3916%; text-align: center;\"\u003eEthernet port indicator, blinking when Ethernet port is working normally\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eSTA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eMCU indicator, blinking when the MCU is working normally\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eTXD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eTX indicator, lights up when sending data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eRXD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eRX indicator, lights up when receiving data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eEthernet Port Green Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eLights up when the connection is established\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eEthernet Port Yellow Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; width: 70.3916%; text-align: center;\"\u003eData activity indicator, blinking when transmitting data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMultiple Modes for Various Automation Scenarios\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports multiple relay control modes, each channel supports independent\u003cbr\u003econtrol mode setting\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-15.jpg\" alt=\"8-ch Ethernet Relay Module (B), normal and flash ON \/ flash OFF relay control mode\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-17.jpg\" alt=\"8-ch Ethernet Relay Module (B), Linkage and Toggle relay control mode\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eRelay Connection\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eContact rating of the onboard relay up to 10A 250VAC\/30VDC\u003cbr\u003eDirectly controlling 220VAC home appliances, or devices below 30VDC\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-19.jpg\" alt=\"8-ch Ethernet Relay Module (B), relay connection demo\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eEnclosure Design\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eRail-mounted ABS plastic enclosure, easy to install, safe to use\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-21.jpg\" alt=\"8-ch Ethernet Relay Module (B), adopts rail-mounted ABS plastic enclosure\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eApplications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-23.jpg\" alt=\"8-ch Ethernet Relay Module (B), applications\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eProduct Show\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-25.jpg\" alt=\"8-ch Ethernet Relay Module (B), product show\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eOutline Dimensions\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-size.jpg\" alt=\"8-ch Ethernet Relay Module (B), outline dimensions\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eResources \u0026amp; Services\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cdiv class=\"bgGrey\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWIKI:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/www.waveshare.com\/wiki\/Modbus_POE_ETH_Relay_(B)\" id=\"tab-wiki\" target=\"_blank\"\u003ewww.waveshare.com\/wiki\/Modbus_POE_ETH_Relay_(B)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePackage Content\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.292 kg\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eThe power supply of this product is not included, it is recommended to purchase 12V power supply if you need it.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eModbus POE ETH Relay (B) x1\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Modbus POE ETH Relay (B)\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-pack.jpg\"\u003e\u003c\/p\u003e","published_at":"2026-04-17T17:26:30+05:30","created_at":"2026-04-17T11:45:46+05:30","vendor":"Waveshare","type":"Ethernet \u0026 Communication Modules","tags":["8 channel relay module","automation relay module","digital input relay","din rail relay","ethernet control relay","ethernet relay module","industrial relay controller","IOT module","iot relay controller","IOT-MOD","MOD","Modbus","modbus relay","modbus rtu relay","modbus tcp relay","mqtt relay module","poe relay module","RLY-MOD","rs485 relay alternative","WaveSH","Waveshare","WVSH"],"price":489999,"price_min":489999,"price_max":489999,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":51603776373053,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"WVSH0595","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"8-ch Ethernet Relay Module (B) With Digital Input, Modbus RTU\/Modbus TCP Protocol, PoE Port Communication","public_title":null,"options":["Default Title"],"price":489999,"weight":500,"compare_at_price":null,"inventory_management":"shopify","barcode":"WVSH0595","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-1.jpg?v=1776426641","\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-2.jpg?v=1776426641","\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-3.jpg?v=1776426641","\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-4.jpg?v=1776426641","\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-5.jpg?v=1776426641"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-1.jpg?v=1776426641","options":["Title"],"media":[{"alt":null,"id":50416060858685,"position":1,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-1.jpg?v=1776426641"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-1.jpg?v=1776426641","width":800},{"alt":null,"id":50416060825917,"position":2,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-2.jpg?v=1776426641"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-2.jpg?v=1776426641","width":800},{"alt":null,"id":50416060793149,"position":3,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-3.jpg?v=1776426641"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-3.jpg?v=1776426641","width":800},{"alt":null,"id":50416060760381,"position":4,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-4.jpg?v=1776426641"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-4.jpg?v=1776426641","width":800},{"alt":null,"id":50416060727613,"position":5,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-5.jpg?v=1776426641"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/modbus-poe-eth-relay-b-5.jpg?v=1776426641","width":800}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2 style=\"text-align: center;\"\u003e8-ch Ethernet Relay Module (B)\u003c\/h2\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWith Digital Input\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eEthernet Port Communication, Modbus Protocol, PoE Power Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), front view\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-1.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eThis product is an industrial 8-ch relay module controlled via Ethernet port, with 8-ch digital input, adopts Modbus RTU\/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe Modbus POE ETH Relay (B) is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and\/or applications with high communication requirements.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 82.1429%; height: 539px; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eFlash Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports flash-on and flash-off function; relay can be turned ON for a specific duration and then automatically turned OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eSupports DC 7~36V wide range input and PoE power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eCommunication Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports MQTT protocol with Alibaba Cloud MQTT demo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eIsolation Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eOnboard optocoupler isolation to prevent interference from high-voltage circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eRelay Driver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eDedicated relay driver chip with built-in flyback diode protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eDigital Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eSupports passive and active digital input with bi-directional optocoupler isolation and built-in debouncing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003eControl Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eSupports digital input linkage control or toggle control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eProtection Circuit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eReverse-proof circuit to prevent damage from incorrect connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 25.4464%;\"\u003e\u003cstrong\u003eRelay Specification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 19.6023px; width: 74.5536%;\"\u003eHigh quality relay, contact rating ≤10A 250VAC \/ 30VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003eRail-mounted ABS plastic enclosure for easy and safe installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2045px;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 25.4464%;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; height: 39.2045px; width: 74.5536%;\"\u003e4 LEDs and network indicators for MCU status and signal transmission status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePrimary function\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports reading digital input by sending Modbus RTU protocol commands via Ethernet for relay output control\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), primary function\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-3.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eSupports Multiple Communication Modes, Adopts Modbus Protocol\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports TCP Server \/ TCP Client \/ UDP Mode \/ UDP Multicast \/ HTTP \/ MQTT\u003cbr\u003eSupports Modbus RTU protocol\/Modbus TCP protocol\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports Modbus RTU protocol\/Modbus TCP protocol\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-4.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMulti Configuration Methods\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports software and Web Browser Configuration, Obtaining Dynamic IP Via DHCP, connecting to domain name server via DNS protocol\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports multi configuration methods\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-7.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMulti Power Supply Options, Wide Range Power Input\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eDC Power port: directly uses a power plug for power supply; Screw terminal: DC 7~36V wide range power input; PoE port: IEEE 802.3af PoE compliant\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), supports multi power supply methods\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-9.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e* The external power supply adapter is NOT included by default, it is recommended to purchase 12V power supply if you need it.\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eDigital Input\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports passive (dry contact) and active (wet contact) digital input, with bi-directional optocoupler isolation\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), digital input connection demo\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-11.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eInterfaces \u0026amp; Indicators\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eWith Multiple LED Indicators, Easy To Monitor The Operating Status\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"8-ch Ethernet Relay Module (B), Interfaces \u0026amp; Indicators instruction\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-13.jpg\"\u003e\u003c\/p\u003e\n\u003ctable height=\"216\" style=\"border-collapse: collapse; width: 82.1429%; margin-left: auto; margin-right: auto;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid; width: 29.5645%; text-align: center;\"\u003e\u003cstrong\u003eRUN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; width: 70.3916%; text-align: center;\"\u003eEthernet port indicator, blinking when Ethernet port is working normally\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eSTA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eMCU indicator, blinking when the MCU is working normally\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eTXD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eTX indicator, lights up when sending data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eRXD\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eRX indicator, lights up when receiving data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eEthernet Port Green Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 70.3916%;\"\u003eLights up when the connection is established\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"text-align: center;\"\u003e\n\u003ctd style=\"border: 1px solid; text-align: center; width: 29.5645%;\"\u003e\u003cstrong\u003eEthernet Port Yellow Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid; width: 70.3916%; text-align: center;\"\u003eData activity indicator, blinking when transmitting data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eMultiple Modes for Various Automation Scenarios\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSupports multiple relay control modes, each channel supports independent\u003cbr\u003econtrol mode setting\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-15.jpg\" alt=\"8-ch Ethernet Relay Module (B), normal and flash ON \/ flash OFF relay control mode\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-17.jpg\" alt=\"8-ch Ethernet Relay Module (B), Linkage and Toggle relay control mode\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eRelay Connection\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eContact rating of the onboard relay up to 10A 250VAC\/30VDC\u003cbr\u003eDirectly controlling 220VAC home appliances, or devices below 30VDC\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-19.jpg\" alt=\"8-ch Ethernet Relay Module (B), relay connection demo\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eEnclosure Design\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eRail-mounted ABS plastic enclosure, easy to install, safe to use\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-21.jpg\" alt=\"8-ch Ethernet Relay Module (B), adopts rail-mounted ABS plastic enclosure\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eApplications\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-23.jpg\" alt=\"8-ch Ethernet Relay Module (B), applications\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eProduct Show\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-25.jpg\" alt=\"8-ch Ethernet Relay Module (B), product show\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eOutline Dimensions\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-size.jpg\" alt=\"8-ch Ethernet Relay Module (B), outline dimensions\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eResources \u0026amp; Services\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cdiv class=\"bgGrey\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWIKI:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/www.waveshare.com\/wiki\/Modbus_POE_ETH_Relay_(B)\" id=\"tab-wiki\" target=\"_blank\"\u003ewww.waveshare.com\/wiki\/Modbus_POE_ETH_Relay_(B)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003ePackage Content\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.292 kg\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eThe power supply of this product is not included, it is recommended to purchase 12V power supply if you need it.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eModbus POE ETH Relay (B) x1\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Modbus POE ETH Relay (B)\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-POE-ETH-Relay-B\/Modbus-POE-ETH-Relay-B-details-pack.jpg\"\u003e\u003c\/p\u003e"}

Flash Control	Supports flash-on and flash-off function; relay can be turned ON for a specific duration and then automatically turned OFF
Power Supply	Supports DC 7~36V wide range input and PoE power supply
Communication Protocol	Supports MQTT protocol with Alibaba Cloud MQTT demo
Isolation Protection	Onboard optocoupler isolation to prevent interference from high-voltage circuits
Relay Driver	Dedicated relay driver chip with built-in flyback diode protection
Digital Input	Supports passive and active digital input with bi-directional optocoupler isolation and built-in debouncing
Control Mode	Supports digital input linkage control or toggle control
Protection Circuit	Reverse-proof circuit to prevent damage from incorrect connection
Relay Specification	High quality relay, contact rating ≤10A 250VAC / 30VDC
Enclosure	Rail-mounted ABS plastic enclosure for easy and safe installation
Indicators	4 LEDs and network indicators for MCU status and signal transmission status

8-ch Ethernet Relay Module (B) With Digital Input, Modbus RTU/Modbus TCP Protocol, PoE Port Communication

8-ch Ethernet Relay Module (B)

With Digital Input

Features

Primary function

Supports Multiple Communication Modes, Adopts Modbus Protocol

Multi Configuration Methods

Multi Power Supply Options, Wide Range Power Input

Digital Input

Interfaces & Indicators

Multiple Modes for Various Automation Scenarios

Relay Connection

Enclosure Design

Applications

Product Show

Outline Dimensions

Resources & Services

Package Content

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RUN	Ethernet port indicator, blinking when Ethernet port is working normally
STA	MCU indicator, blinking when the MCU is working normally
TXD	TX indicator, lights up when sending data
RXD	RX indicator, lights up when receiving data
Ethernet Port Green Indicator	Lights up when the connection is established
Ethernet Port Yellow Indicator	Data activity indicator, blinking when transmitting data