Acnodes OPC 8190 - Manual (Page 37)

 IDE Configuration
You can use this screen to select options for the IDE Configuration,
and change the value of the selected option. A description of the
selected item appears on the right side of the screen. For items
marked with
“f”, please press <Enter> for more options.
 ATA/IDE Configuration
Use this item to specify the integrated IDE controller. There
are three options for your selection: Disabled, Compatible
and Enhanced.
 Legacy IDE Channels
When the ATA/IDE Configuration is set to Compatible, this
item will be displayed.
 Primary/Secondary/Third IDE Master/Slave
Select one of the hard disk drives to configure IDE devices
installed in the system by pressing <Enter> for more option