---
product_id: 24249605
title: "Modbus I/O Module 24VDC Powered"
brand: "ocean controls"
price: "FREE"
currency: HKD
in_stock: false
url: https://www.desertcart.hk/products/24249605-modbus-i-o-module-24vdc-powered
store_origin: HK
region: Hong Kong
---

# Modbus I/O Module 24VDC Powered

**Brand:** ocean controls
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Modbus I/O Module 24VDC Powered by ocean controls
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/24249605-modbus-i-o-module-24vdc-powered)

## Best For

- ocean controls enthusiasts

## Why This Product

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

## Description

The KTB-224 is a Modbus Slave IO module for interfacing to any PLC or PC using the Modbus protocol. It behaves as a Modbus Slave and Relays, Inputs and Outputs are controlled by writing to and reading from the Coils and Holding Registers. It can be used for many applications such as controlling lights and sprinkler systems, reading sensors and monitoring switches and other digital signals, or even for industrial control. The module can connect to a standard RS485 2-wire half duplex network or to a computer via USB. When connected via USB, the module acts as a USB to RS485 converter and multiple IO units (or other Modbus devices) can be connected to the RS485 bus. USB drivers are available for Windows, Mac and Linux. The user can save a set of output statuses to be loaded when the unit is powered up or reset. A watchdog timer can be configured to reset the unit after a user-definable number of seconds since the last communication from a Modbus master.

## Features

- 8 Relay outputs (5A, 250VAC contacts) 4 Opto-Isolated Inputs with counters 3 Analog Inputs     (10 bit) jumper-selectable for 0-5V or 0-20mA 4 Input Counters RS485 or USB (virtual serial port)     Can be used as a USB to RS485 converter Watchdog Timer resets the unit when communication from the network master is lost Connections via Pluggable Screw Terminals 1200-38400 Baud Modbus Slave Device    ›See more product details

## Images

![Modbus I/O Module 24VDC Powered - Image 1](https://m.media-amazon.com/images/I/41UmxouSV3L.jpg)

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**Shop now:** [https://www.desertcart.hk/products/24249605-modbus-i-o-module-24vdc-powered](https://www.desertcart.hk/products/24249605-modbus-i-o-module-24vdc-powered)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-23*