Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Explanations

3. Instruction Set

„When M1156/M1158 = ON, enable ramp-down pause (Mark function) on Y0/Y2 when X4/X6 receives interrupt signals.

„When Mark function is enabled, ramp down time is independent of the ramp up time. Users can set ramp up time in S3 and ramp down time in D1348/D1349. (Range: 20ms~32767ms)

„When Mark function is executed and the ramp-down stop pulses (DD1232/DD1234) are specified, PLC will execute ramp-down stop with specified pulses after Mark is detected. However, if DD1232/DD1234 are less than the specified ramp-down time (D1348 / D1349), PLC will fill DD1232/DD1234 with the value of ramp-down time. In addition, if DD1232/DD1234 is more than the half of total output pulses, PLC will modify DD1232/DD1234 to be less than half of the total output pulses.

„Ramp-down stop pulses (DD1232/DD1234) are 32-bit value. Set value K0 will disable the Mark function.

„Y0,Y2 relative parameters for Mask and Alignment Mark function:

Parameter			Ramp	Pulse number	Pulse number	Output
	Mark	Input			for ramp-down	pause	Pause
Output	flag	points	down	for masking	of Mark	(ramp	status
			time	output
					function	down)
Y0	M1156	X4	D1348	D1026, D1027	D1232, D1233	M1108	M1538
Y2	M1158	X6	D1349	D1135, D1136	D1234, D1235	M1110	M1540

Program example 1:

M0	SET
		M1156
	DMOV	K10000	D1232
M0	DPLSR K100000 K1000000			K20	Y0
	FEND
M1000
I401	INCP	D0
	IRET
	END
Explanations:

„When M0 is triggered, Y0 executes pulse output. If external interrupt is detected on X4, pulse output will perform ramp down process for 10,000 pulses and then stop. M1108 will be ON to indicate the pause status (ramp down). If no interrupt is detected, Y0 pulse

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