{"product_id":"waveshare-industrial-modbus-rtu-8-channel-relay-module","title":"Waveshare Industrial Modbus RTU 8-Channel Relay Module (D) With Digital Input RS485 Interface 7–36V - RS9625","description":"\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003eDescription:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Waveshare Industrial Modbus RTU 8-Channel Relay Module (D) is an advanced, industrial-grade solution designed for reliable automation and control. Equipped with 8 relay output channels, digital input ports, and an RS485 communication interface, it enables seamless integration into PLC systems and other industrial control setups.\u003c\/p\u003e\n\u003cp\u003eSupporting the Modbus RTU protocol, this module ensures efficient and stable serial communication, even over long distances ideal for complex industrial environments. The multi-isolation protection circuits, including optocouplers and surge protection, offer strong resistance to electrical interference and transient voltages, ensuring stable and secure operation.\u003c\/p\u003e\n\u003cp\u003eWith a wide 7–36V DC power supply range, the module adapts easily to various power systems, providing flexibility and compatibility across diverse applications. Its robust design and reliable performance make it suitable for industrial control, remote monitoring, building automation, and other demanding use cases.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a factory automation system or enhancing a PLC setup, the Waveshare Modbus RTU 8-CH Relay Module (D) delivers dependable performance, high-level protection, and versatile connectivity in one powerful package.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003eSpecifications:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply: 7~36V\u003c\/li\u003e\n\u003cli\u003eCommunication interface: RS485\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBaudrate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDefault communication format: 9600, N, 8, 1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRelay channels: 8\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eContact form: 1NO 1NC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003econtact rating: ≤10A 250VAC\/30VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDigital input: 8DI, 5~36V, passive\/active input (NPN or PNP), built-in bi-directional\u003c\/li\u003e\n\u003cli\u003eoptocoupler isolation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommunication protocol: Standard Modbus RTU protocol\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRS485 address: 1~255\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLED indicators: \u003cbr\u003e             STA: The MCU indicator keeps flashing when the MCU is normally working.\u003cbr\u003e             TXD: TX indicator, lights up when sending data\u003cbr\u003e             RXD: RX indicator, lights up when receiving data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003eFeatures:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfigurable device address (1~255): multiple devices can be cascaded on the RS485 bus\u003c\/li\u003e\n\u003cli\u003eFeatures a flash-on, flash-off function; by passing an argument to the command, it is possible to turn on the relay for a while and then close it automatically\u003c\/li\u003e\n\u003cli\u003eOnboard unibody power supply isolation provides a stable isolated voltage and needs no extra power supply for the isolated terminal\u003c\/li\u003e\n\u003cli\u003eOnboard unibody magnetic isolation allows signal isolation, high reliability, strong anti-interference, and low power consumption\u003c\/li\u003e\n\u003cli\u003eOnboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides over-current\/over-voltage proof, and is lightningproof anti-electrostatic\u003c\/li\u003e\n\u003cli\u003eOnboard Optocoupler isolation prevents the relay from being interfered with by high-voltage circuits\u003c\/li\u003e\n\u003cli\u003eAdopts a dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability\u003c\/li\u003e\n\u003cli\u003eSupports passive and active digital input, with bi-directional optocoupler isolation and a built-in debouncing algorithm. The relay supports digital input linkage control or toggle control\u003c\/li\u003e\n\u003cli\u003eReverse-proof circuit prevents the circuit from being damaged accidentally by incorrect connection\u003c\/li\u003e\n\u003cli\u003eHigh-quality relay, contact rating: ≤10A 250VAC\/30VDC\u003c\/li\u003e\n\u003cli\u003eRail-mounted ABS plastic enclosure, easy to install, safe to use\u003c\/li\u003e\n\u003cli\u003eMultiple LEDs for indicating the MCU status and signal receiving status\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003eProduct Interface:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg style=\"width: 1800px; height: auto;\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-9.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width: 1800px; height: auto;\" 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\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003eApplications:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg style=\"width: 1800px; height: auto;\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-21.jpg\"\u003e\u003cimg style=\"width: 1800px; height: auto;\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/Modbus-RTU-Relay-D\/Modbus-RTU-Relay-D-details-21.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: 'Roboto Slab'; color: #b80000;\"\u003ePackage Included:\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"font-style: italic;\"\u003e\u003cem\u003e1 x Modbus RTU Relay (D)\u003c\/em\u003e\u003c\/li\u003e\n\u003cli style=\"font-style: italic;\"\u003e\u003cem\u003e1 x Screwdriver \u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":46898121638055,"sku":"RS9625","price":3177.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/9042\/9095\/files\/WaveshareModbusRTU8-CHRelayModule_D_withRS485.webp?v=1752654121","url":"https:\/\/rees52.com\/products\/waveshare-industrial-modbus-rtu-8-channel-relay-module","provider":"REES52","version":"1.0","type":"link"}