Concepts
About 1 min read
This section explains how 2WinScada works: how data is modeled, who sees what, how values are archived and which states an alarm goes through. Step-by-step procedures are in the Operator Guide and Engineering Guide sections; each concept page links to the related procedure pages.
| Page | Topic |
|---|---|
| Data Model | Channel → device → tag structure, tag types (normal, advanced, system addresses), quality and update interval, task centers, buildings and departments |
| Process Groups and Access | Process group types, users, groups and roles, who sees which data, alarms that belong to no process group, the SystemAdmin account |
| Archiving | Log definitions, when a record is taken and which value, where history is stored, retention period, consumption calculation and data gaps |
| Alarms | Alarm types, tolerance and delay, lifecycle (new, acknowledged, awaiting reset, closed), lock, sound and notifications |
| Data Downsampling (LTTB) | Reducing a large number of chart points while keeping their shape |
Recommended reading order when you start a new project: first Data Model, then Process Groups and Access. Read the Archiving and Alarms pages before you move on to log and alarm definitions.