IEC standards download IEC 62541 -7:2020 pdf download – OPC unified architecture – Part 7: Profiles IEC 62541 -7:2020 pdf download - OPC unified architecture – Part 7: Profiles. 3 Terms, definitions, and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC TR... 03-05 Download Now