UNE-CLC IEC/TR 62541-1:2021 OPC unified architecture - Part 1: Overview and concepts (Endorsed by Asociación Española de Normalización in September of 2021.)
2021UNE-CLC IEC/TR 62541-1:2021 OPC unified architecture - Part 1: Overview and concepts (Endorsed by Asociación Española de Normalización in September of 2021.)