Source

The source of the PSO is specified using the ComparatorSource class.

The ComparatorSource.sourceType can be set to one of the following:

Type	Description
PosCommand	The source is set to the position command (Pos Cmd) of an axis.
PosFeedback	The source is set to the position feedback (Actual Pos) of an axis.
FollowingError	The source is set to the position command (Pos Cmd) minus the position feedback (Actual Pos) of an axis.

For axes in Sync state, the Match Pos parameter affects the value of the above sources.

The axis from which the source is obatined is specified with ComparatorSource.axis.