# Modbus RTU Station

> PLC Engineer's Essential! Monitor/Control RS485/232 via USB OTG without a laptop

Canonical page: [https://chrome-stats.com/d/com.dreamsoftware.modbus\_rtu\_master](https://chrome-stats.com/d/com.dreamsoftware.modbus_rtu_master)

## Overview

- **ID:** `com.dreamsoftware.modbus_rtu_master`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** DreamSoftware52
- **Category:** TOOLS
- **Downloads:** 293
- **Version:** 1.0.4
- **Last updated:** 2026-09-02
- **First published:** 2026-03-13
- **Publisher country:** KR
- **Size:** 25 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.dreamsoftware.modbus_rtu_master)
- **Website:** [https://highwindl.github.io/](https://highwindl.github.io/)
- **Privacy policy:** [https://highwindl.github.io/privacy/modbus-rtu-station/](https://highwindl.github.io/privacy/modbus-rtu-station/)

## Description

Turn your smartphone into a powerful Industrial Modbus RTU Master! Modbus RTU Station is a premium communication tool specifically designed for field maintenance engineers, System Integration (SI) experts, and hardware developers. No more carrying heavy, battery-draining laptops to cramped server rooms or up high ladders. With just your smartphone and a USB OTG cable, you can instantly check data, change values, and debug equipment on-site.<br>🔥 Key Differentiators:<br>•	Laptop-Free Mobility: No need to open a laptop in precarious field conditions. Debugging is now as simple as taking out your phone.<br>•	Rock-Solid Stability: Optimized with the usb_serial package to ensure stable communication with various USB-to-RS485/232 converters.<br>•	Expert-Grade Settings: Supports detailed serial parameters (Baud Rate, Data Bits, Stop Bits, Parity) to handle any legacy equipment.<br>•	Android-Exclusive Optimization: Strategically developed only for Android to provide deep hardware integration that iOS cannot offer.<br>🛠 Main Features:<br>•	Comprehensive Function Code Support: Full support for FC01 (Coil), FC02 (Discrete Input), FC03 (Holding Register), and FC04 (Input Register).<br>•	Built-in CRC-16 Logic: Features a high-reliability Modbus RTU standard CRC-16 checksum engine for accurate data transmission.<br>•	Versatile Data Formats: Visualize data in Binary, Int, Hex, Float, or Double formats.<br>•	Advanced Data Handling: Provides Word Swap (Inverse/Byte Swap) options for complex communication environments.<br>•	Real-time Monitoring &amp; Control: High polling speeds allow for real-time surveillance and immediate Write commands.<br>💎 Premium (Pro) Benefits ($19.99):<br>•	Unlimited Profile Saving: Save the connection info and register settings for frequently used devices and load them anytime.<br>•	Ad-Free Environment: Work in a clean, professional environment without any interruptions during critical inspections.<br>•	Enhanced Security: A pure on-device tool that never sends your data to external servers, ensuring industrial confidentiality.<br>⚠️ Requirements &amp; Important Notes:<br>•	Recommended OS: Android 9 (Pie) or higher is strongly recommended for stable USB driver performance and communication.<br>•	Hardware Requirements: A USB OTG adapter and a Serial converter cable (RS485/232) are required to connect to your devices.<br>•	Device Compatibility: Please ensure your smartphone supports USB Host mode (OTG) before purchasing.

## Rankings

- #1,563,287 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.dreamsoftware.modbus_rtu_master.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.dreamsoftware.modbus_rtu_master)