Processes
Start and connectivity handling
Start
The process for starting a device adapter should be as follows:
💡When using an SDK, this process is already handled.
Object Connectivity
Each Object has special States and Events which do not need to be explicitly defined in the object model:
| Id | State/Event | Description |
|---|---|---|
| @connected | State | true: Object is functional (connection to the system established, Object exists in the system, States are received …) false (default): Object is not functional (disconnected, Object does not exist in the system, …) |
| @connectionfault | Event | In most cases this Event should be set on Node objects to indicate a connection fault. This is the only Event which is handled if @connected is false. |
| @unsynced | State | true: Object is unsynced (Object still needs synchronization and the States and Events are not valid yet) false (default): Object is synced (all Atates and Events are valid) |
💡The SDKs offer methods to simplify the usage of these States and Events.
Last modified September 25, 2026