17 Advanced functions
17.5 Event triggers
FLUXUS G831ST-HT
2021-06-01, UMFLUXUS_G831ST-HTV1-0EN
130
Definition of the switching delay
• Enter a time interval after which the event trigger has to switch in case the event occurred.
• Press ENTER.
• Enter a time interval after which the event trigger has to be deactivated in case of a measurement failure.
• Press ENTER.
17.5.1
Apparent switching delay
The measured values and totalizer values will be displayed rounded according to the set number of decimal places. The
limits, however, will be compared to the non-rounded measured values. This might cause an apparent switching delay
when the measured value changes marginally (less than the visualized decimal places). In this case, the switching
accuracy of the event trigger is higher than the accuracy of the display.
17.5.2
Reset and initialization of the event triggers
After an initialization of the transmitter all event triggers are deactivated.
Event triggers whose switching condition is still met will be activated again after 1 s. This function is used to reset event
triggers of the type
HOLD
if the switching condition is no longer met.
If a measurement is stopped, all event triggers will be deactivated and the corresponding process outputs will be de-
energized, independently of the programmed idle state.
17.5.3
Event trigger during the measurement
An event trigger with the switching condition
MAX (x>limit)
,
MIN
(x<limit)
,
Within range
or
Out of range
will
be updated max. once per second to avoid a constant switching of the event trigger (i.e. fluctuation of the measured
values around the value of the switching condition).
An event trigger with switching condition
ERR (x=fail)
will be activated during a measurement failure.
An event trigger of the type
Non-hold
will be activated if the switching condition is met. It will be deactivated if the
switching condition is no longer met. The alarm remains activated for at least 1 s even if the switching condition is met for
a shorter period of time.
An event trigger of the type
Hold
will be activated if the switching condition is met. It remains activated even if the
switching condition is no longer true.
An event trigger of the type
Hold for a while
will be activated if the switching condition is met. In the menu item
Hold
interval
the time is defined when deactivation takes place.
Options\Event trigger\Rx Enable\Source item\...\Glitch interval
Options\Event trigger\Rx Enable\Source item\...\Failure delay
