The DrumDiameter variable describes the drum's diameter.

The DrumHeight variable describes the drum's current height as measured from the center of the Shearer Loader.

The MountingPosition property describes the drum's mounting position on the Shearer Loader.

Please refer to OPC 10000-100, OPC 40001-1, OPC 40560 and OPC 40561-1 for the descriptions of other inherited instance declarations.