OPC Foundation
  • Documents
  • NodeSets
  • Search
12.3 TriStateBooleanDataType

This DataType is an enumeration that identifies the filtering of particular properties in requests for lists of results, recipes etc. Its values are defined in Table 139.

Table 139 – Values of TriStateBooleanDataType

Value

Description

FALSE_0

The filtering function shall look for entities where the filtered value is FALSE.

TRUE_1

The filtering function shall look for entities where the filtered value is TRUE.

DONTCARE_2

The filtering function shall not take the value into account.

Please report errors or issues with the site to webmaster.

Copyright © 2025 - OPC Foundation