SCADA – Hermetry

Hermetry’s SCADA tools turn device data into pictures of your process: tanks that fill, pumps that run, valves that open, pipes that flow, rooms that change colour. You draw a picture once, attach it to a device or a site, connect its symbols to the device’s values, and every dashboard that shows that device or site draws it live.

The pieces

Piece	Where	Page
2D process drawings	Process Diagrams	The SCADA designer
Symbols and libraries	The designer’s Symbols palette	Symbols and industry packs
Pipes, cables and other connections	The designer’s Connect tool	Pipes, cables and connections
Rules that change how symbols look	The designer’s Rules tab	Symbol rules
Commands on symbols	The card’s actions	Commands on symbols
Connecting symbols to devices	A device’s or a site’s Views	Binding symbols to live data
One drawing for many devices	The device profile’s Views	One drawing for many places
3D designs and live 3D views	3D Designs	3D views, The 3D designer

How they fit together

Draw a process drawing in Process Diagrams, or a 3D design in 3D Designs.
Attach it as a view of a device or a site (its Views).
Connect each symbol to a device and one of its values, with an optional one-line conversion.
Show it: a Process diagram or Design, live (3D) card on a dashboard draws the view of the device or site the page is about.

One drawing can serve many devices: each device or site keeps its own connections. A change to the drawing reaches every place that uses it.

Before you start

The SCADA and 3D modules are part of the IoT add-on and are off until your organisation has them. Ask your administrator. See Plans and the IoT add-on.
The core symbol set is always included. Industry libraries are bought one by one. See Symbols and industry packs.
3D needs a browser with WebGL.

Permissions

Permission	Default minimum role	Needed to
View process diagrams	User	Open Process Diagrams (read-only) and see a dashboard card that draws a stored drawing
Create, edit and delete process diagrams	Admin	Draw, rename, duplicate and delete drawings; set up a device’s or a site’s drawing
Author commands on process diagram symbols	Admin	Add or change a command on a symbol
View 3D designs	User	Open 3D Designs and see 3D cards
Create, edit and delete 3D designs	Admin	Design in 3D, publish models, set up 3D views

Connecting symbols on a device’s Views also needs read access to the device and its telemetry. Running a symbol’s command needs the command’s own permission.

Saving

Editors save only when you press Save. Nothing is saved by itself in the 2D designer. The 3D designer has a per-browser Save automatically switch that is off by default.

Leaving with unsaved changes asks “Discard your changes?” with Discard changes or Keep editing.

If someone else saved the same drawing since you opened it, you are told: “Someone saved this diagram since you opened it. Save again to keep your version, or close and reopen it to take theirs.” The 3D designer offers Keep my version or Load the saved version.

Limits

Limit	Value
Process drawings per organisation	500
Size of one drawing	2 MiB
Symbols per drawing	200
Connections per drawing	300
Titles, zones and dividers per drawing	100
Rules per drawing	200
Things placed from data	500 per drawing
3D designs per organisation	200
Views per device or site	50 of each kind
Devices bound in one profile run	500

In this section

2D drawings

Live data

Reference