Server Objects > Drivers > OPC Driver > OPC Group > OPC Block > Properties

Controls the Advise mode. The available options are described on the next table.

Available options for the AdviseType property

Option	Description
0 - AlwaysInAdvise	Tag is updated if OPC Block's AllowRead property is set to True and OPC Group's Enable property is also set to True
1 - AdviseWhenLinked	Tag is updated only if OPC Block's AllowRead property and OPC Group's Enable property are set to True, and the Tag is associated to an active object, such as a Display on an open Screen or an enabled Alarm, among others. A Tag link for this purpose can be assigned to the following properties: Value, RawValue, Quality, and from Bit00 to Bit31 of OPC Block Elements, and Quality and TimeStamp of OPC Blocks (default)

Option

Description

0 - AlwaysInAdvise

Tag is updated if OPC Block's AllowRead property is set to True and OPC Group's Enable property is also set to True

1 - AdviseWhenLinked

Tag is updated only if OPC Block's AllowRead property and OPC Group's Enable property are set to True, and the Tag is associated to an active object, such as a Display on an open Screen or an enabled Alarm, among others. A Tag link for this purpose can be assigned to the following properties: Value, RawValue, Quality, and from Bit00 to Bit31 of OPC Block Elements, and Quality and TimeStamp of OPC Blocks (default)

Example:

Sub CommandButton3_Click()
MsgBox Application._
GetObject("OPCDriver.OPCGroup.SCRIPT1").AdviseType
End Sub

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