Installation manual
CNC 8055
CNC 8055i
PLC RESOURCES
9.
SOFT: V02.2X
·441·
Timers
9.5.1 Monostable mode. Input TG1
In this operational mode the timer status is kept at the high logic level (T=1) from the moment the
TG1 input is activated until the time indicated by the time constant elapses.
If the timer is initialized with values TEN=1 and TRS=0, the timer will be activated when a leading
edge is produced at input TG1. At that moment, the timer status output (T) changes states (T=1)
and the timing starts from "0".
Once the time specified by the time constant has elapsed, timing will be considered as having
finished. The timer status output (T) changes status (T=0) and the elapsed time will be maintained
with the time value of the timer (T).
Any changes at the TG1 input (up or down-flank) while timing, has no effect.
After timing is completed, a new up-flank at the TG1 input will trigger the timer on again and its time
count will start from zero again.
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