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Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) with Digital Input and RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply

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$44.99

$ 23 .99 $23.99

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About this item

  • Configurable device address (1~255), multi devices can be cascaded on RS485 bus
  • Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
  • Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
  • Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  • Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
  • Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
  • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability
  • Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control
  • Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
  • High quality relay, contact rating: ≤10A 250VAC/30VDC. Rail-mounted ABS plastic enclosure, easy to install, safe to use. Multiple LEDs for indicating the MCU status and signal transceiving status



Product Description

Modbus RTU Relay (D)
Modbus RTU Relay (D)
Modbus RTU Relay (D)

Dixie
Reviewed in the United States on February 1, 2025
This relay module is solidly built and works exactly as expected. The RS485 interface makes setup straightforward, and the screw terminals provide a secure connection. The multi-isolation protection is a nice touch, adding extra reliability when handling different loads. The 7–36V power range gives flexibility, and the digital inputs respond well. It has been running smoothly without any issues, making it a great choice for automation projects or industrial setups. Definitely a dependable option!
Let Me Say This:
Reviewed in Canada on August 11, 2024
We added the Waveshare Industrial Modbus RTU 8-Ch Relay Module to our setup, and it's been performing well. It’s built solidly and doesn’t feel flimsy like some other modules we’ve tried. With 8 channels, it's handling everything we throw at it, which is a lot when you’re running multiple systems. The RS485 interface is straightforward, making integration with our setup pretty painless.The multi-isolation protection circuits are a nice safety net, especially when you’re working with varied loads and power supplies. Speaking of power, the 7~36V range gives you some flexibility, which is helpful in our slightly chaotic environment.The digital inputs are responsive, and the module has been reliable so far. We haven’t had any hiccups, which, trust me, is a relief. If only everything else we worked with was this dependable! It's a solid choice if you need something reliable and not too fussy. It’s been quietly doing its job in the background—just the way I like it.
alberto
Reviewed in Italy on August 10, 2024
Il Modulo Relay Modbus RTU Waveshare 8 Canali è una soluzione eccellente per chi necessita di un controllo remoto affidabile di carichi elettrici tramite il protocollo Modbus RTU. Questo dispositivo offre versatilità e robustezza, rendendolo adatto per applicazioni in ambito industriale, automazione domestica e altri scenari che richiedono un controllo preciso e centralizzato.La qualità costruttiva del modulo è solida, con un design compatto che facilita l'integrazione in quadri elettrici o in sistemi esistenti. I relè offrono una capacità di commutazione di 10A a 250V AC o 30V DC, il che li rende sufficientemente potenti per controllare una vasta gamma di dispositivi, dalle luci ai motori, passando per le valvole.Durante l'uso, il modulo ha dimostrato una grande affidabilità. La comunicazione tramite RS485 è stabile, e i comandi vengono eseguiti con precisione. L'isolamento optoelettronico integrato protegge il modulo da interferenze elettromagnetiche e sovratensioni, garantendo un funzionamento sicuro e continuo anche in ambienti difficili.L'unico possibile svantaggio è che richiede una conoscenza di base del protocollo Modbus RTU e delle reti RS485 per essere configurato e utilizzato correttamente. Tuttavia, per gli utenti con un minimo di esperienza in questi campi, il modulo risulta abbastanza intuitivo.Il Modulo Relay Modbus RTU Waveshare 8 Canali è un dispositivo versatile, affidabile e ben progettato, ideale per chi cerca una soluzione robusta per il controllo remoto di carichi elettrici. Grazie alla sua facilità di configurazione e alla compatibilità con il protocollo Modbus, rappresenta una scelta eccellente per una vasta gamma di applicazioni di automazione.
KG
Reviewed in Canada on June 21, 2024
I have an amateur Christmas light display using addressable WS2811 LEDs and the open-source WLED software, and it has been growing incrementally over the past four years. I've struggled with data loss on some of my longer runs of 18 gauge wire; I acquired some individual RS485 modules for those long data runs and they've worked great, but they have left my control box quite messy. This eight channel module has done a terrific job at cleaning that up. The screw terminals make a solid connection, and this easily is able to connect to my ESP32 modules. I'm not really sure what the intended use of this type of hardware is beyond my very specific use case, but it works very well for any aspiring Gus Griswold's of the modern day.
Jon C
Reviewed in the United States on December 27, 2024
Easy to use
GuiguiTechTips
Reviewed in France on December 22, 2024
Ce module relay contrôlable via des ports série RS-232 / RS-485 est de bonne qualité de fabrication et fonctionne.Ce n'est certes pas le genre de modules le plus facile à utiliser mais la documentation est fournie sur le wiki et c'est un trait inhérent à ce genre d'appareils inspiré du domaine industriel.
Meklarismus
Reviewed in Germany on April 29, 2024
Das Relaymodul "Waveshare Industrial Modbus RTU 8-Ch Relay Module (D) With Digital Input And RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply " wird in einem bedruckten Produktkarton aus Pappe geliefert.Im Inneren befindet sich das Modul als auch ein kleiner Schraubendreher.Eine Ausführlichere Doku und Informationen findet man im Herstellereigenen Wiki, welches man leider erstmal im netz suchen muss, aber schnell finden kann.In Betrieb genommen werden kann dieses Relay Modul mittels eines beliebigen Poweradapters mit SPannung zwischen 7V und 36V.Es gibt 8 Digitale Inputs welche sowohl mittels passiven (schalter) als auch aktiven Sensoren angesteuert werden können.Die Relays können bis zu 250V 10A schalten.Über RS485 Schnittstelle kann alles auch über eine Zentrale gesteuert werden(oder den PC, vorrausgesetzt ein zusätzlicher Adapter ist vorhanden).
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