Site Runtime

Site Runtime is a lightweight always-on service deployed to a building host. It executes the active bundle independently of Development Studio.

Responsibilities

• protocol polling and controlled writes;
• Data Table values and program cycles;
• schedules and alarm evaluation;
• local historian and alarm databases;
• active and rollback deployment slots;
• Web Station and Client View APIs;
• authenticated management, health and audit endpoints.

Host platforms

Site Runtime has Windows service and Linux systemd packaging workflows. A package build or successful Linux test is not equivalent to a clean, native installation acceptance test on every supported operating system.

Persistent state

The configured Site Runtime data directory contains the active bundle, previous bundle, local client credentials, SQLite historian and alarm data. Back up this directory through the supported Runtime backup workflow.