OPC Unified Architecture - Historical Access1 Scope This part of IEC 62541 is part of the OPC Unified Architecture standard series and defines the information model associated with Historical Access (HA). It particularly includes additional and complementary descriptions of the NodeClasses and Attributes needed for Historical Access, additional standard Properties, and other information and behaviour. The complete AddressSpace Model including all NodeClasses and Attributes is specified in IEC

lifts and hoists for building and public works sites

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The following changes have been made in comparison to the previous edition EN 10277-1:2008 to EN 10277-5:2008:

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Unlike close-coupled and back-to-wall toilet options

it utilizes the IEEE 11073 Nomenclature (IEEE 11073-10101™) and supports other coding systems to convey the semantics of any information elements

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