{"product_id":"8-ch-ethernet-relay-module-b-with-digital-input-modbus-rtu-modbus-tcp-protocol-poe-port-communication","title":"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","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":51603776373053,"sku":"WVSH0595","price":4899.99,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/modbus-poe-eth-relay-b-1.jpg?v=1776426641","url":"https:\/\/thinkrobotics.com\/products\/8-ch-ethernet-relay-module-b-with-digital-input-modbus-rtu-modbus-tcp-protocol-poe-port-communication","provider":"ThinkRobotics.com","version":"1.0","type":"link"}