Discover DZVOLT UI

Monitor and control your Modbus RTU devices through a live web interface — no programming required.

What is DZVOLT UI? §

DZVOLT UI is an industrial controller interface for managing IoT modules connected via Modbus RTU serial communication. It runs as a local web server, accessible from any browser on your network, giving operators and administrators a live view into digital and analog I/O on every connected device.

The application handles serial port communication, real-time data streaming, role-based access control, and a complete audit trail — so you can monitor, configure, and troubleshoot hardware without writing a line of code.

Key Features §

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Real-Time Monitoring

Live I/O values update the moment hardware changes. Watch DI pulse counts, AI voltage readings, and DO states refresh in real time.

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Multi-Workspace

Organize devices by serial port. Each workspace runs its own Modbus RTU polling loop across all connected modules.

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Role-Based Access

Administrators configure everything locally. Operators get browser access to read values and toggle outputs — nothing more.

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Full Audit Trail

Every write operation is logged with the operator name, old value, new value, timestamp, and IP address.

Quick Start §

Get from a fresh install to live I/O data in five steps.

Set your master password
On first launch, the lock screen asks you to create a master password. This is the administrator credential — keep it safe. It cannot be reset without a recovery key.
Create a workspace
Click Add Workspace in the sidebar (or press N). Give it a name and select the serial port your RS485 adapter is on. Baud rate is fixed at 9600 8N1.
Add a module
With the workspace selected, click Add Module in the toolbar (or press A). DZVOLT UI scans the bus and lists all responding iCTRL-20 modules by Slave ID. Select the ones you want, give each a name, and click Add Selected.
Connect
Click the Connect button on the module card. The serial port opens and polling begins. Section cells start showing live values within seconds.
Explore I/O
Click any section cell (DI, DO, AI, AO) to open the detail panel. Read values, write outputs, rename signals, and view history — all in one place.

What You'll Need §

A machine running DZVOLT UI (Windows, macOS, or Linux)
A USB-to-RS485 adapter or built-in RS485 serial port
One or more DZVOLT iCTRL-20 modules with DIP switches configured
A modern browser on any device on the same network (for operator access)

Desktop App

DZVOLT UI is also available as a standalone desktop application for Windows, macOS, and Linux. The interface is identical — launch the app and it's ready, no additional setup required.