CSN EN IEC 62541-1

CSN EN IEC 62541-1 This part of IEC 62541 presents the concepts and overview of the OPC Unified Architecture (OPC UA). Reading this document is helpful to understand the remaining parts of the IEC 62541 series. Each of the other parts is briefly explained along with a suggested reading order.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.