IEC 62769-101-2:2020 is available as
IEC 62769-101-2:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62769-101-2:2020 specifies the IEC 62769 profile for IEC 61784 1, CP 1/2 (FOUNDATION™ Fieldbus HSE).