Omron FQM1-MMP21 Axis Instruction For Virtual Pulse Outputs, Operands, Calculation Cycle

Virtual Pulse Output FunctionSection 7-8

7-8-3 AXIS Instruction (For Virtual Pulse Outputs)

Overview	The AXIS instruction is used to generate a virtual pulse output with trapezoi-
	dal acceleration/deceleration.
	The operands for the AXIS instruction are a target position specified in pulses
	or as an absolute position, and a target speed specified in pulses/s (Hz).
	While the AXIS instruction’s input condition is ON, it internally generates the
	specified number of pulses and integrates (counts) the number of pulses
	(area) in the trapezoid.
Operands

AXIS

M

C

T

M:Mode specifier

C:Calculation cycle

T: First word of setting table

M (Mode Specifier) Sets the output mode.

•#0000: Relative mode

•#0001: Absolute mode

C (Calculation Cycle) Sets the calculation cycle.

•#0000: 2 ms calculation cycle

•#0001: 1 ms calculation cycle

•#0002: 0.5 ms calculation cycle

T (First Word of Setting Table)

Address		Name	Description		Setting range	Set/
						monitored
T		Internal pulse count	The present value of internal	Relative mode:		Monitored
		(8-digit hexadecimal)	pulse counter is stored here.	0000 0000 to FFFF FFFF		(Read)
T+1
				Absolute mode:
				8000 0000 to 7FFF FFFF
T+2	Bit 15	Virtual pulse output	Indicates whether or not the vir-	OFF: Pulse output stopped
		status	tual pulse output has started.	ON:	Pulse being output
	Bit 08		Indicates the direction of virtual	OFF:	CW
			pulse currently being output.	ON:	CCW
	Bit 07		Indicates whether or not the vir-	OFF: Pulse being counted
			tual pulse output is being	ON:	Target position reached
			counted.
					(Counting stopped)
	Bit 00		Indicates whether or not the vir-	OFF: Constant speed
			tual pulse output is accelerating/	ON:	Accelerating/decelerating
			decelerating.
T+3 to T+4		Present speed	The frequency of the virtual	0000 0000 to 000F 4240 hex
		(8-digit hexadecimal)	pulse output is stored here.	(0 to 1 MHz in 1-Hz units)

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