Appearance
Valve
A smart-object symbol showing a two-port valve's Closed / Open / Fault state, with optional partial-travel position.
In Studio
In Studio, double-click Valve in the Symbols category of the Components panel. It is added to the open view, where you can drag it into place.
When to use
Use Valve for a standard on/off or throttling valve. For a valve with three or four connected ports, use Multi-Port Valve instead.
Properties
| Property | Type | Default | Description |
|---|---|---|---|
| Value | String | (none) | The bound state value — same contract as Motor's Value (Closed instead of Stopped, Open instead of Running). |
| Symbol Type | simple, pnid, mimic | simple | The drawing variant: simple (flanged body), pnid (ISA hourglass bowtie), or mimic (globe body with bonnet and gland). |
| Label | String | Valve | The caption shown below the symbol. |
| Show Caption | true, false | true | Shows or hides the caption (the name and state word) under the symbol. Off also gives that height back to the drawing — use it when a separate label template sits beside the symbol. |
| Position % | String | (none) | Optional percent-open feedback (0–100). When bound, the body fills progressively as it strokes rather than snapping between fully open and fully closed; when left unbound, the valve simply shows fully open or fully closed based on Value alone. |
| Orientation | up, right, down, left | up | Which way the outlet points: up (as drawn, default), right, down, or left. |
| Closed Color | Color | #808080 | The body color while Closed. Defaults to the HMI palette's stopped-state color. |
| Open Color | Color | #FFFFFF | The body color while Open. Defaults to the HMI palette's running-state color. |
| Fault Color | Color | #E12D39 | The body color while Fault. Defaults to the HMI palette's priority-1 alarm color. |
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.
Position is a separate read-only binding for travel feedback — see that field.
Mid-travel state
A valve actively stroking (Position between 0 and 100, not matching Value's own Closed/Open state) shows the caption "MOVING" rather than a fourth color — the partial fill on the body is what carries the in-between state, per the HMI colour standard's rule against inventing a color for a normal transition.