TOFF

TOFF (Timer Off Delay)

TOFF instruction counts downward time (Preset value) to set timer(S).


S	Timer device address to set
t	Preset value

Instruction		Device address													No. of Steps	Flag
Instruction		M	X	Y	K	L	F	T	C	S	Z	D	@D	Int.	No. of Steps	Error	Zero	Carry
TOFF	S	-	-	-	-	-	-	o	-	-	-	-	-	-	3	-	-	-
TOFF	t	-	-	-	-	-	-	-	-	-	-	o	-	o	3	-	-	-

When disabled, TOFF instruction decrements preset value (t) and when the accumulated value (ACC value) reaches 0sec, timer device(S) will be turned OFF.

You can set up the time base (t) in PLC Parameter.

According to Timer parameter, T0~T127 is 100ms and T128~T511 is 10ms.

(EX. TOFF T5 100 : 10,000ms = 10sec.)

The TOFF is a non-retentive timer. When the TOFF instruction is disabled, ACC value go back to preset value (t).

The range of preset (t) : 0 ~ 65535

Example)

If M00 is ON, T10 and Y20 are turned ON. When M00 is OFF, TOFF decrements the preset value (from 10 to 0sec) and when it reaches 0sec, T10 and Y20 are turned OFF.