---
product_id: 607033996
title: "Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support"
brand: "waveshare"
price: "321 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Waveshare"
url: https://www.desertcart.ro/products/607033996-waveshare-industrial-8-ch-digital-input-and-output-module-dc
store_origin: RO
region: Romania
---

# 7~36V wide voltage range Multiple isolation protection circuits RS485 Modbus RTU cascading support Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support

**Brand:** waveshare
**Price:** 321 Lei
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your automation game with industrial-grade precision and unstoppable connectivity!

## Quick Answers

- **What is this?** Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support by waveshare
- **How much does it cost?** 321 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/607033996-waveshare-industrial-8-ch-digital-input-and-output-module-dc)

## Best For

- waveshare enthusiasts

## Why This Product

- Trusted waveshare brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Output Performance:** Darlington transistor outputs deliver up to 500mA with built-in flyback diode protection for heavy-duty loads.
- • **Seamless Network Expansion:** Configurable device addresses (1-255) enable cascading multiple modules on a single RS485 bus.
- • **Power Flexibility Unleashed:** Supports a broad 7~36V DC input range for versatile industrial environments.
- • **Rock-Solid Signal Integrity:** Advanced magnetic and power isolation circuits ensure ultra-reliable, interference-free operation.
- • **Plug & Play Industrial Design:** Rail-mountable, stackable casing with multi-LED status indicators for effortless installation and monitoring.

## Overview

The Waveshare Industrial 8-Channel Digital Input & Output Module is a rugged, rail-mountable device designed for professional automation systems. It supports a wide 7~36V DC power supply, features multiple layers of isolation protection for stable and interference-resistant operation, and communicates via Modbus RTU over RS485 with configurable addresses for cascading. With high-current Darlington transistor outputs and comprehensive status LEDs, it delivers reliable, scalable digital I/O control tailored for demanding industrial environments.

## Description

desertcart.com: Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support : Industrial & Scientific

Review: It works great - Great product and right price
Review: Software and Manual on Waveshare Wiki - I didn't receive any instructions on how to operate this device but luckily I was familiar with Waveshare products and knew they would have a wiki with software and example code. Search the web for “Waveshare Modbus RTU IO 8ch wiki” and it should be one of the top results. This wiki includes a download link for Windows software to control this device. It also includes all the commands for the device. I picked up a RS485 to USB adapter, also from Waveshare, and was able to communicate with the device on a Linux computer. The default baud rate is 9600 8N1. Note that you will need to be able to send HEX commands using serial, I found the program “moserial terminal” provides a nice graphical way to send and receive HEX data. It is also possible to write a Python script to interface with this device. The wiki includes sample code to get started. I wanted to see what IC’s were used for this device so I opened it up and included a few photos. The main microcontroller is a STM32F030C8T6. The digital outputs use a ULN2803A darlington transistor array capable of 500mA up to 50V. Optical isolators are used to isolate this and the STM32 micro. For digital inputs optical isolators are also used. There is an isolated 5V 1W DC-DC regulator and a gas discharge tube. This design is fully isolated and the circuitry looks nice and neat. Overall this is a great device that I would recommend for anyone looking for isolated digital IO.

## Features

- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- Onboard voltage regulator, supports 7~36V wide range power supply. 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
- Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
- Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. Supports DI/DO linkage control or DO toggle control
- The output utilizes Darlington transistors with optocoupler isolation, provides stronger driving capability with up to 500mA sinking current, built in flyback diode protection
- Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the output for a while and then close it automatically
- Rail-mount case design, support stacking combination, easy to install and safer to use
- Multiple LEDs for indicating the input & output status, MCU status and signal transceiving status

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRKQ8B5P |
| Best Sellers Rank | #95,671 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in IO Modules |
| Brand | waveshare |
| Built-In Media | Modbus RTU IO 8CH x1, Power supply terminal adapter x1, Screwdriver x1 |
| CPU Model | Core i7 |
| Compatible Devices | Programmable Logic Controller, Data Acquisition & Supervision System, Human-Machine Interface |
| Connectivity Technology | RS-485 |
| Customer Reviews | 4.4 out of 5 stars 31 Reviews |
| Included Components | Modbus RTU IO 8CH x1, Power supply terminal adapter x1, Screwdriver x1 |
| Manufacturer | Waveshare |
| Model Name | Modbus RTU IO 8CH |
| Operating System | Linux |
| Processor Brand | ARM |
| Processor Count | 1 |
| RAM Memory Technology | DDR4 |
| Warranty Description | 1 |
| Wireless Compability | 802.11b |

## Product Details

- **Brand:** waveshare
- **CPU Model:** Core i7
- **Connectivity Technology:** RS-485
- **Included Components:** Modbus RTU IO 8CH x1, Power supply terminal adapter x1, Screwdriver x1
- **Model Name:** Modbus RTU IO 8CH

## Images

![Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support - Image 1](https://m.media-amazon.com/images/I/51j19ATQjRL.jpg)
![Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support - Image 2](https://m.media-amazon.com/images/I/61KDaFrUf2L.jpg)
![Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support - Image 3](https://m.media-amazon.com/images/I/71CGZgDMQTL.jpg)
![Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support - Image 4](https://m.media-amazon.com/images/I/61Gx+P2rGcL.jpg)
![Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support - Image 5](https://m.media-amazon.com/images/I/71vnVCWr46L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works great
*by L***S on May 15, 2025*

Great product and right price

### ⭐⭐⭐⭐⭐ Software and Manual on Waveshare Wiki
*by S***Y on September 9, 2024*

I didn't receive any instructions on how to operate this device but luckily I was familiar with Waveshare products and knew they would have a wiki with software and example code. Search the web for “Waveshare Modbus RTU IO 8ch wiki” and it should be one of the top results. This wiki includes a download link for Windows software to control this device. It also includes all the commands for the device. I picked up a RS485 to USB adapter, also from Waveshare, and was able to communicate with the device on a Linux computer. The default baud rate is 9600 8N1. Note that you will need to be able to send HEX commands using serial, I found the program “moserial terminal” provides a nice graphical way to send and receive HEX data. It is also possible to write a Python script to interface with this device. The wiki includes sample code to get started. I wanted to see what IC’s were used for this device so I opened it up and included a few photos. The main microcontroller is a STM32F030C8T6. The digital outputs use a ULN2803A darlington transistor array capable of 500mA up to 50V. Optical isolators are used to isolate this and the STM32 micro. For digital inputs optical isolators are also used. There is an isolated 5V 1W DC-DC regulator and a gas discharge tube. This design is fully isolated and the circuitry looks nice and neat. Overall this is a great device that I would recommend for anyone looking for isolated digital IO.

### ⭐⭐⭐⭐ Modbus
*by V***S on June 18, 2025*

The only downside is there are no instructions on how to use the device, when you find out how it works, it great

## Frequently Bought Together

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-26*