Expert
Logger
Bandwidth
: Sets the "monitoring window" for forms of monitoring:
Band
violation
and
steady condition
. In
Band monitoring/violation
, the "mon-
itoring window" is symmetrical to the threshold. The value entered acts as
a subtraction to the window with
band monitoring
in positive and negative
directions, and as an addition with
band violation
.
Example: Threshold = 50, bandwidth = 3
→
means the range from 47 to
53 is monitored.
Delay
: The alarm condition must be me during the specified time to trigger
an alarm. The option is an alternative to the
Hysteresis
option and is espe-
cially suitable for suppressing false alarms for brief signal distortions with
high amplitudes. Both options can be combined.
Latching
: The alarm is latched (continues to alarm) even when the alarm
condition is no longer met. Enabling
Latching
changes the field label in
Reset trigger for latching. The alarm resets when a reset event occurs, e.g.
a
rising edge
in the given channel. The
Reset priority
option causes an
alarm to reset when the alarm condition is still met.
4.11.7
Pulse generator
This software channel can be used in two different modes:
l
Free running
: Continuous pulses are generated at a fixed repetition rate
(
Cycle time
) and at a set
Pulse width
.
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Delphin Technology AG
Januar 2018
Expert
Logger
Manual