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Site groups
One overview of several sites' summaries, on a separate site-group server.
A multi-site operator can run a site-group server on its own network. It shows one tile per site, from each site's latest summary. It is the only screen on that server.
What a tile shows
- Stops: each stop with its Interlock and confirmed Root cause (or "not confirmed"), and stops not yet restarted;
- Open items: stops without a confirmed cause and workflow results awaiting review;
- Alarm health: Alarms per hour, time in flood, Chattering, Standing, and the Most frequent alarms;
- the time of the summary (the last 24 hours by default). A site the server could not reach shows its last summary, marked "Site not reached" with the time and error;
- Open site: a link to the site's own Web UI.
Refresh fetches every site's summary now; otherwise they are fetched every 15 minutes.
What leaves a site
Only the site summary: stops, confirmed root causes, alarm statistics and open items. No raw data, code or documents. The group server can only send GET requests to one path on each site, so nothing reaches back to a plant. Setting it up is described in Integration API.