This section of the HELP files contains information on 4 small
 subroutines which allows the user to attach/detach or slave/unslave
 the plotter.
 
	CALL PLTATA	This subroutine attaches the plotter with an
			AST sevice routine.  Its's purpose is to trap
			all unsolicited input.  A ^C will terminate
			the program execution.
 
	CALL PLTDET	This subroutine removes the attachment of the
			plotter.
 
	CALL PLTSLV	This subroutine sets the plotter to SLAVE.  Be
			Because the plotter will be left in SLAVE mode
			if the program terminates before a call to
			PLTNOS is made, it is recommended that the user
			call USEREX with PLTNOS as the argument, i.e.
				EXTERNAL PLTNOS
				CALL USEREX( PLTNOS )
				CALL PLTSLV
 
			See HELP FORTRAN FUNCTIONS USEREX
 
	CALL PLTNOS	This subroutine UNSLAVE's the plotter.
 
 Written by: P. Nystrom
 Located on: LB:[1,1]SYSLIB