Normally select the latest GSDML, new versions of the file contain also the DAPs for the previous versions.

GSDML-V2.33-ABB-FPNO-20180516.xml
Original GSDML for v1.00 onwards

GSDML-V2.33-ABB-FPNO-20191025.xml
Fixed max data length so that it's possible to configure PPO7 and ABB_PS2 together.
v1.00 onwards

GSDML-V2.4-ABB-FPNO-20201118.xml
Contains 2 DAPs, "FPNO-21" which is compatible with the v1.00 onwards and "FPNO-21 S2" from v1.10 onwards
enables S2 system redundancy in configuration.

GSDML-V2.42-ABB-FPNO-20211117.xml
Updated version information for FPNO-21 v2.00, functionally same as previous file and backwards compatible.

GSDML-V2.42-ABB-FPNO-20240126.xml
Same as GSDML-V2.42-ABB-FPNO-20211117.xml with Software Version and Hardware Version attributes removed. Use for all FPNO-21 versions.

GSDML-V2.43-ABB-FPNO-20240219.xml
Same GSDML-V2.42-ABB-FPNO-20240126.xml with System Redundancy attribute MaxSwitchOverTime was changed from 30 to 100 to comply with PNIO v2.43. Use for all FPNO-21 versions.

GSDML-V2.43-ABB-FPNO-20240903.xml
Same as GSDML-V2.43-ABB-FPNO-20240219.xml with all the Software Version and Hardware Version attributes removed from the Data Objects. Use for all FPNO-21 versions.

GSDML-V2.43-ABB-FPNO-20241112.xml
Same as GSDML-V2.43-ABB-FPNO-20240903.xml with MaxDataLength increased to 176 bytes. Use for all FPNO-21 versions.