8 Standard Objects and their Variables ToC Previous Next

8.4 ModellingRule Objects ToC Previous Next

8.4.4 OptionalPlaceholder ToC Previous Next

The ModellingRule OptionalPlaceholder is defined in OPC 10000-3. Its representation in the AddressSpace, the “OptionalPlaceholderObject, is formally defined in Table 92.

Table 92 – OptionalPlaceholder Definition

Attribute Value
BrowseName OptionalPlaceholder
References NodeClass BrowseName Comment
HasTypeDefinition ObjectType ModellingRuleType Defined in 6.5
HasProperty Variable NamingRule Value set to “Constraint”

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