Reading or Writing Object Properties in the Automation Interface

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When using the automation interface to query the properties of objects in the ClearSCADA database, there are three main methods. The examples below read the State0Desc property of a digital point. Note that all examples on this page assume that the script objects referenced have already been set to objects in the ClearSCADA database.

• Using the Interface property directly.

sState0Desc=obj.Interface.State0Desc

• Using the interface property as part of a second object.

setobjInt=obj.InterfacesState0Desc=objInt.State0Desc

• Using the property method on the object.

sState0Desc=obj.Property("State0Desc")

To write to properties of objects in the database, a similar method is followed to the examples shown above. In each case where a property is returned, simply turn the statement around to have a property equal some value. For example, the code below would set the value of the State0Desc property equal to "Stopped".

obj.Property("State0Desc")="Stopped"

Note that the ClearSCADA database schema will summarize which properties can be written to and which are read-only.

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