Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Accumulative Timer, Bits Bits counters Counters

2. Programming Concepts

Accumulative 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. For accumulative timers, current value will not be cleared when timing is interrupted.

Timer T250 will be driven when X0 = ON. When X0 = OFFor the power is off, timer T250 will pause and retain the current value. When X0 is ON again, T250 resumes timing from where it was paused.

X0

TMR T250 K100

T250

Y0

T1T2 T1+T2=10sec

X0

	present	K100
T250 value
Y0

Timers for Subroutines and Interrupts

Timers for subroutines and interrupts count once when END instruction is met. The associated output coils will be ON if the set value is achieved when End instruction executes. T184~T199 are the only timers that can be used in subroutines or interrupts. Generals timers used in subroutines and interrupts will not work if the subroutines or interrupts are not executing.

2.11 C (Counter)

Counters will increment their present count value when input signals are triggered from OFFON.

	16 bits
			32 bits counters
	counters
Type	General	General	High speed
			C232(C233)~C242,
Counters	C0~C199	C200~C231(C232)		C243, C244
			C245~C254
Count	Count up	Count up/down		Count up
direction
Range	0~32,767	-2,147,483,648~+2,147,483,647		0~2,147,483,647
Preset	Constant K or	Constant K or data register D (Dword)
value	data register
register	D (Word)
				Counter will keep on
	Counter will	Counter will keep on counting when preset		counting when preset
				value is reached. The
Output	stop when	value reached. The count value will become
operation	preset value	-2,147,483,648 if one more count is added		count value will
				become 0 if one more
	reached	to +2,147,483,647
				count is added to
				+2,147,483,647

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