Trigger element is designed to generate an events in the system when logic triggered or manually.
Trigger element has two modes: normal and inverted. For the normal mode the trigger changes state from normal to alarm, and when turned off - return back to normal. In the reverse mode - respectively vice versa.
A feature of the trigger element is that this element may be included in the list of input conditions (IF), and the list of actions performed (THEN) logic circuits. Such a feature can be used to create a connection between two independent logics.
To create "Trigger" click on " 
" inside "System tree" menu.
Click on the "Trigger". You will see a picture.
Enter a name for the created trigger. If necessary, select the inversion.
Click "OK" to create a trigger.
Editing trigger possible inside the "System tree" menu.
When you edit a trigger, in addition to standard control functions virtual elements and functions are available:
- "On" - transfer to an active state (alarm - for normal and norm - for inverse mode);
- "Off" - transfer to an inactive state (norm - for normal and alarm - for inverse mode);