Cancels an outstanding PFIP action.
2=to: 2!:}Format: PFIP_CANCEL <action>
2!:}Examples: PFIP_CANCEL GDXPOS
2=to: 2!:}Comments: A list of the actions which are allowed as parameters to this command can be obtained by typing PFIP_CANCEL. However the most likely use of this command is after a 4ms reset, when the safest procedure is to type PFIP_CANCEL ALL.