Interface

Home screen

The home screen is your starting point. You'll see three buttons: Server, Split and Client. Click the mode you need and you're ready to go.

Navigating within a mode

In both Client and Server mode you'll find a Home button in the top-left corner to return to the home screen. Your session is preserved: connections and configurations stay intact when you switch, and even when you close and reopen Modbux entirely.

Client mode

The Client interface is built around three zones:

At the top you configure everything: on the left the register configuration (which type, starting address, how many, or read the configured registers only), on the right the connection settings (protocol, address, Unit ID).

In the middle you'll see the data grid. This is where your register values appear, grouped by type (Holding Registers, Input Registers, Coils, Discrete Inputs).

The toolbar gives you control over reading and writing: Poll for continuous reading, Read for a single read operation, and buttons for configuration management, byte order and advanced features.

Write buttons are located on individual rows in the data grid, not in the toolbar.

Server mode

The Server interface is simpler:

At the top you manage your servers: name, port, Unit ID selection, byte order (BE/LE) and saving/loading configurations. You can run up to 10 servers simultaneously, each on its own port.

Below that are four collapsible panels, one per register type. Click a panel to open it, add registers and configure values. Collapse panels you don't need for more workspace.

Split mode

Split mode opens two windows that operate independently:

• The new window is your server
• Your main window becomes the client
• Configure your server, connect via 127.0.0.1 from the client, and test your communication
• Close the server window to return to normal