control-StringWritable
StringWritable extends StringPoint to include 16 levels of command priority control. The highest priority active command is
reflected in the Out property. Commands at the Manual and manual levels (1 and 8) are stored persistently.
This point is available in the Points folder of the control palette and usually resides in a device’s Points folder.
Figure 212. String Writable Property Sheet
You can access these properties in the Property Sheet by expanding and double-click on StringWritable
| Property | Value | Description |
|---|---|---|
| Facets | Config Facets window | Associates a key with one or more phrases. |
| Proxy Ext, Out | value | Reports both numeric and alpha values, facets and data status such as fault, overridden, alarm, and so on. If no status flag is set then status is considered normal and reports {ok} |
| Proxy Ext, In1–16 | values | Indicate from where the point’s value originates, including details specific to the parentage of the point’s network and communications
(driver).
null indicates that the point is an empty placeholder. |
| Proxy, Fallback | value | Configures a default Out value for a point when a priority scan of inputs In2 – In7 and In9 – In16returns a null or invalid value, and no emergency action (In1) or manual action (In8) has occurred.
|
| Override Expiration | read-only | Reports how long a value that has been set manually (using an action) remains valid. |
Actions
- Emergency Override: sets an output value at the emergency level.
- Emergency Auto: clears an output value set at the emergency level.
- Override: sets an output value at the manual level.
- Auto: clears an output value set at the manual level.
- Set: opens the Set window where you can enter a text string.