Operating with Runtime

Starting

• From Studio: Open runtime runs the selected document. Show runtime focuses the existing run.
• Without Studio: python -m abscada my-plant --runtime opens the project's startup screen.
• Without a UI: python -m abscada my-plant --headless --seconds 30 acquires and prints values to the console.

Runtime works on a copy of the project taken at start-up. Studio changes appear after closing and reopening it.

Interacting

Action	How
Write a value	Double click an input
Toggle / command	Click a button
Navigate	Buttons with the Open screen action
Open details	Buttons with the Open pop-up action
Acknowledge alarms	Alarm viewer → ACK

Runtime shows only what you designed: no automatic tabs or menus. Navigation is defined by the project's buttons.

Writes

Writes are explicit commands. Type, permission and good quality are checked before sending. If the connection is unavailable the command is discarded and logged: it is not replayed on reconnect. The displayed value updates with the subsequent read, not with the send.

Status bar

Shows the state of each connection, write errors and archive service warnings (queue full, SQLite error, disk full). An archive failure is never confused with a PLC failure.

Closing

Closing the Runtime window stops communications, scripts and logging and closes its pop-ups. Closing Studio also stops its Runtime.

Session and permissions

With security enabled, Runtime starts without a session and is read-only. Use Iniciar sesión in the status bar. Commands require operate or the control permission; alarm acknowledgement requires acknowledge. Pop-ups share the session and inactivity logout follows the project policy. Auditing identifies the user and command origin. See Users and roles.

Runtime can also publish variables through its OPC UA server; those sessions use their own accounts and permissions. Library objects display bound parameters and process quality.

Switch language

Use the language selector or a configured button. The selection applies to all windows and containers without restarting communications, closing popups or rerunning opening scripts. See Project languages.