{"product_id":"waveshare-8-ch-modbus-rtu-relay-module-d-with-rs485-digital-input-buy-online-in-india","title":"Waveshare 8-CH Modbus RTU Relay Module D with RS485 \u0026 Digital Input – Buy Online in India","description":"\u003ch2\u003eDescription:\u003c\/h2\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eWaveshare 8-CH Modbus RTU Relay Module (D) is an industrial-grade relay control module designed for automation systems, PLC integration, remote switching, and intelligent control applications. Featuring 8 relay channels, digital input, and an RS485 communication interface, this module provides a convenient way to control multiple electrical loads through a Modbus RTU network.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe module supports a wide 7-36V DC power supply, making it suitable for a variety of industrial control environments. Its RS485 interface enables reliable communication over longer distances, while Modbus RTU compatibility allows integration with PLCs, industrial controllers, computers, and other automation equipment.\u003c\/p\u003e\n\u003cp\u003eWith multiple relay outputs and digital input functionality, the module is well suited for factory automation, machine control, smart control panels, equipment monitoring, and custom industrial projects.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-5.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e8-Channel Industrial Relay Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWaveshare 8-CH Modbus RTU Relay Module (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eModbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Input\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e7-36V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eIndustrial Automation \u0026amp; PLC Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Control\u003c\/td\u003e\n\u003ctd\u003eRemote \/ Modbus Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eIndustrial Control Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eIndustrial Automation Relay Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-9.jpg\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 independent relay channels for multi-load control\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports Modbus RTU communication\u003c\/li\u003e\n\u003cli\u003eIntegrated RS485 interface for industrial communication\u003c\/li\u003e\n\u003cli\u003eWide 7-36V DC power supply range\u003c\/li\u003e\n\u003cli\u003eDigital input functionality for control and monitoring\u003c\/li\u003e\n\u003cli\u003eSuitable for PLC-based automation systems\u003c\/li\u003e\n\u003cli\u003eDesigned for industrial control applications\u003c\/li\u003e\n\u003cli\u003eEnables remote relay switching through RS485\u003c\/li\u003e\n\u003cli\u003eUseful for machine and equipment control\u003c\/li\u003e\n\u003cli\u003eSuitable for distributed automation systems\u003c\/li\u003e\n\u003cli\u003eSupports integration with compatible Modbus RTU controllers\u003c\/li\u003e\n\u003cli\u003eIdeal for custom industrial automation projects\u003c\/li\u003e\n\u003cli\u003eHelps reduce wiring complexity in multi-channel control systems\u003c\/li\u003e\n\u003cli\u003eSuitable for monitoring and controlling electrical equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-5.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePLC automation systems\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIndustrial equipment control\u003c\/li\u003e\n\u003cli\u003eFactory automation\u003c\/li\u003e\n\u003cli\u003eMachine control systems\u003c\/li\u003e\n\u003cli\u003eRemote relay switching\u003c\/li\u003e\n\u003cli\u003eSmart control panels\u003c\/li\u003e\n\u003cli\u003eIndustrial monitoring systems\u003c\/li\u003e\n\u003cli\u003eBuilding automation\u003c\/li\u003e\n\u003cli\u003eMotor and actuator control\u003c\/li\u003e\n\u003cli\u003eLighting control systems\u003c\/li\u003e\n\u003cli\u003ePump and valve control\u003c\/li\u003e\n\u003cli\u003eIoT-based industrial automation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety Precautions:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUse only a suitable 7-36V DC power supply.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eVerify the power polarity before connecting the module.\u003c\/li\u003e\n\u003cli\u003eDisconnect power before making wiring or installation changes.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the relay's specified voltage and current ratings.\u003c\/li\u003e\n\u003cli\u003eUse appropriate fuses and circuit protection for connected loads.\u003c\/li\u003e\n\u003cli\u003eKeep the module away from water, excessive moisture, and conductive debris.\u003c\/li\u003e\n\u003cli\u003eEnsure proper insulation when switching mains or high-voltage loads.\u003c\/li\u003e\n\u003cli\u003eOnly qualified personnel should work with hazardous-voltage circuits.\u003c\/li\u003e\n\u003cli\u003eUse suitable RS485 wiring and maintain correct communication connections.\u003c\/li\u003e\n\u003cli\u003eAvoid short circuits between power, relay, and communication terminals.\u003c\/li\u003e\n\u003cli\u003eInstall the module in an appropriately ventilated enclosure for industrial use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions ( FAQs )\u003c\/h2\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eQ1. How many relay channels does this module have?\u003c\/strong\u003e\u003cbr\u003eThe module provides 8 independent relay channels for controlling multiple loads.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2. Does this module support Modbus RTU?\u003c\/strong\u003e\u003cbr\u003eYes. It is designed for Modbus RTU communication through the RS485 interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3. What power supply does the module require?\u003c\/strong\u003e\u003cbr\u003eThe module supports a wide 7-36V DC power supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4. Can this relay module be used with a PLC?\u003c\/strong\u003e\u003cbr\u003eYes. Its RS485 and Modbus RTU functionality makes it suitable for compatible PLC and industrial automation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5. Does the module have digital inputs?\u003c\/strong\u003e\u003cbr\u003eYes, the module includes digital input functionality for industrial control and monitoring applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ6. Can I control the relays remotely?\u003c\/strong\u003e\u003cbr\u003eYes. The relays can be controlled through the supported RS485 Modbus RTU communication network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ7. Is this module suitable for industrial automation?\u003c\/strong\u003e\u003cbr\u003eYes. It is specifically designed for applications such as PLC control, machine automation, equipment control, and industrial monitoring.\u003c\/p\u003e\n\u003ch2\u003ePackage Included:\u003c\/h2\u003e\n\u003cp\u003e1 × Waveshare 8-CH Modbus RTU Relay Module (D)\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eWHY PURCHASE FROM FIFTRONICS ? \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e✔️ 100% Tested \u0026amp; Reliable Products - Every product is carefully checked for quality and performance\u003cbr\u003e✔️ Fast \u0026amp; Secure Delivery Across India - Quick dispatch with safe packaging\u003cbr\u003e✔️ Trusted Electronics \u0026amp; Robotics Store - Preferred choice for DIY enthusiasts, students, engineers and Industrial Supply\u003cbr\u003e✔️ Guaranteed Best Prices on Bulk Quantity - Competitive pricing with special discounts on bulk orders\u003cbr\u003e✔️ Wide Range of Products - Everything you need for IoT, robotics, and electronics projects\u003c\/p\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":47918927347890,"sku":"FA0736","price":4389.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/0588\/3570\/files\/115_bb715df2-938c-4839-81b9-0a031724d2e0.jpg?v=1787152391","url":"https:\/\/fiftronics.com\/products\/waveshare-8-ch-modbus-rtu-relay-module-d-with-rs485-digital-input-buy-online-in-india","provider":"FIFTRONICS","version":"1.0","type":"link"}