Omron FQM1-MMA21, FQM1-CM001 1-7-4, Function Tables Arranged by Purpose, Section, MMA21 Only

Function Tables Arranged by Purpose					Section 1-7
	Purpose		Operation	Main functions	Details
				used
Detecting speed		Detecting speed	Measuring dis-	Monitoring High-	7-5-8 Pulse Input Function Description
using rotary		and use in out-	placement of	speed Counter	Outputs the change in the high-speed counter
encoder inputs		put control while	workpiece per	Movement
					PV each cycle, while outputting number of input
		managing posi-	unit time	(cycle time)
					pulses as high-speed counter PV.
		tion using
					Used for applications such as detecting speed of
		encoder inputs
					external master axis during synchronous con-
					trol.
				Monitoring High-	7-5-8 Pulse Input Function Description
				speed Counter	Outputs the change in the high-speed counter
				Movement
					PV each sampling cycle (1 to 9,999 ms) speci-
				(sampling time
					fied asynchronously to Motion Control Module
				specified)
					cycle.
					Used for applications such as detecting external
					device speed or number of pulses within a spec-
					ified time (not used for output control).
		Monitoring	Measure input	Counter fre-	7-5-8 Pulse Input Function Description
		speed while	pulse cycle	quency mea-	Number of input pulses can be monitored simul-
		managing work-		surement (pulse
					taneously as high-speed counter PV and pulse
		piece position		input 1 only)	frequency.
		using encoder
		input
1-7-4	High-speed Analog I/O Control
	Purpose		Operation	Main functions	Details
				used
Measuring		High-speed	Storing analog	• Interval timer	7-9-3 Analog Input Function Specifications
undulation, dis-		tracing of analog	input value in	interrupts	Can perform analog sampling at a constant
tortion, thick-		data when	memory at	• PRV(881)
					cycle, using scheduled interrupt processing in
ness, height, or		external signal	specified time	instruction	analog input immediate refresh mode.
diameter, etc., of		turns ON	(constant cycle)		Sampling can be executed at small time inter-
an object
					vals using analog input conversion (40 ∝s).
					Data stored in memory can also be displayed on
					PT and other display devices, e.g., to show
					trends.
		High-speed	Storing analog	High-speed	7-9-7 High-speed Analog Sampling (FQM1-
		tracing of analog	inputs to DM	analog sam-	MMA21 Only)
		data synchro-	Area synchro-	pling function	Sampling of target measurement object position
		nized with tar-	nous with posi-
					as compared to the sampling based on time.
		get object	tion (pulse input)
					Interrupt tasks, as outlined above, are not used,
		position
					so even more detailed sampling is possible.
					Used for applications such as generating dis-
					placement data for the measurement object
					from one position to another position.

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