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Version 2026.21

Tank ​

A vessel-shaped analog level indicator.

In Studio ​

In Studio, double-click Tank in the Process category of the Components panel. It is added to the open view, where you can drag it into place.

When to use ​

Use Tank for a level reading where the vessel shape itself is meaningful context, rather than an abstract bar (Progress Bar) or dial (Gauge).

Properties ​

PropertyTypeDefaultDescription
ValueString(none)The bound level value.
Symbol Typesimple, pnidsimpleThe drawing variant: simple (vessel with the reading and scale inside) or pnid (a plain vessel whose outline is the component's box, so pipes meet its walls; no text inside — put the reading beside it as a value display).
LabelStringTankThe caption shown below the vessel.
Show Captiontrue, falsetrueShows or hides the caption under the vessel. Off also gives that height back to the drawing.
Show Scaletrue, falsetrueShows or hides the scale tick marks (and, for simple, their numbers and the min/max labels).
MinNumber0The value at an empty vessel.
MaxNumber100The value at a full vessel.
UnitString%The unit text shown under the numeric readout.
Fill ColorColor#4A6B8AThe fill color for the liquid. Defaults to the HMI palette's analog fill token (a muted blue), not a state color.
Show Agitatortrue, falsefalseDraws a top-mounted agitator (motor, shaft, impeller) in the vessel, in both symbol types: with pnid it is line art like the other P&ID symbols, the drive sitting on the vessel outline. Off by default; the vessel top moves down to make room and nothing else changes.
Agitator StateString(none)The agitator run state, bound separately from Value. Maps to Off, On, Fault or Unknown like Pump. Only used when Show Agitator is on.
Animatetrue, falsetrueWhen true and the agitator is On, the impeller turns and the motor fan spins; when false, the agitator is drawn static.

Binding ​

Click Bind… on the Value property and bind it to a tag or an expression to drive the live value.

This binding is read-only — the component never writes to the tag.