User manual

Instruction Set

Timer 3-6

timer instructions continued...

Instruction Description

Retentive Timer On

RTO

Status Bits:

EN - Enable

TT - Timer Timing

DN - Done

If the input conditions go true, timer T4:10 starts incrementing in 1-second intervals as long as

the rung remains true. When the rung goes false, the timer stops. If the rung goes true again,

the timer continues. When the accumulated value is greater than or equal to the preset (10), the

timer stops and sets the timer done bit.

Timer Reset

RES

If the input conditions go true, timer T4:1 is reset. This instruction resets timers

and counters, as well as control blocks. This is necessary to reset the RTO

accumulated value.

RETENTIVE TIMER ON

Timer T4:10

Time Base 1.0

Preset 10

Accum 0

RTO

Rung

Condition

ACC

Value

RTO

Status

False 0000 Reset

True 1 1 0 increase Timing

False 0 0 0 maintains Disabled

True 1 0 1 >=preset Done

T4:1

(RES)