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

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

2.9 S Relay
Initial step relay	Starting instruction in Sequential Function Chart (SFC).
	S0~S9, total 10 points.
Zero return step relay	Returns to zero point when using IST instruction in program. Zero
	return step relays not used for IST instruction can be used as
	general step relays.
	S10~S19, total 10 ponits.
Latched step relay	In sequential function chart (SFC), latched step relay will be saved
	when power loss after running. The state of power on after power
	loss will be the same as the sate before power loss.
	S20 ~ S127, total 108 points.

General purpose step relay General relays in sequential function chart (SFC). They will be

	cleared when power loss after running.
	S128 ~ S911, total 784 points.
Alarm step relay	Used with alarm driving instruction API 46 ANS as an alarm
	contact for recording the alarm messages or eliminating external
	malfunctions.
	S912 ~ S1023, total 112 points.
2.10 T (Timer)

The units of the timer are 1ms, 10ms and 100ms and the counting method is counting up. When the present value in the timer equals the set value, the associated output coil will be ON. The set value should be a K value in decimal and can be specified by the content of data register D.

The actual set time in the timer = timer resolution× set value

Ex: If set value is K200 and timer resolution is 10ms, the actual set time in timer will be 10ms*200 = 2000ms = 2 sec.

General Timer

The timer executes once when the program reaches END instruction. When TMR instruction is executed, the timer coil will be ON when the current value reaches its preset value.

When X0 = ON, TMR instruction is driven. When current value achieves K100, the assocailte timer contact T0 is ON to drive Y0. If X0 = OFFor the power is off, the current value in T0 will be cleared as 0 and output Y0 driven by contact T0 will be OFF.

X0
	TMR	T0		K100
T0
	Y0		10 sec

X0

	present	K100
T0 value
Y0

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