SS IEC 62541-8:2019

OPC unified architecture – Part 8 : Data access


Defines the information model associated with Data Access (DA). Includes additional VariableTypes and complementary descriptions of the NodeClasses and Attributes needed for Data Access, additional Properties, and other information and behaviour.

The complete address space model, including all NodeClasses and Attributes is specified in SS IEC 62541-3. The services to detect and access data are specified in SS IEC 62541-4.




Status Withdrawn - 28 Nov 2022
Edition 2019
No. of Pages 31
ICS Classification 25.040.40 Industrial process measurement and control
35.100 Open systems interconnection (OSI)
Committee Manufacturing Standards Commitee
Available for Purchase unknown
Adoption IEC 62541-8 : 2015 IDT