Ganz Security ZN1A-B4DMZ56U-1 GXi Series VCA Interface Manual - Page 60

Was Clause, Previous Clause

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Ganz GXi Series VCA Interface Manual V3.05.31.18 Was Clause The 'was' clause is triggered if the input clause was triggered at the specified time in the past. This has the effect of applying a time delay to its input clause. The example below shows the effect of applying a 'was' clause to the output of a presence rule. The logical rule is triggered if the presence rule was triggered five seconds earlier. Previous Clause The 'previous' clause will trigger if its input clause is triggered at between the current time and a fixed offset in the past. The result is that short events will be extended by the specified time interval. The following example shows the effect of using a 'previous' clause with a five second interval to process the output of a presence rule. The input event lasts for two seconds, so the resulting logical rule event lasts for seven seconds. 05-2018-A 59 | P a g e

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05-2018-A
Ganz GXi Series
VCA Interface Manual V3.05.31.18
59 |
P ag e
Was Clause
The 'was' clause is triggered if the input clause was triggered at the specified time in the past. This has
the effect of applying a time delay to its input clause.
The example below shows the effect of applying a 'was' clause to the output of a presence rule. The
logical rule is triggered if the presence rule was triggered five seconds earlier.
Previous Clause
The 'previous' clause will trigger if its input clause is triggered at between the current time and a fixed
offset in the past. The result is that short events will be extended by the specified time interval.
The following example shows the effect of using a 'previous' clause with a five second interval to process
the output of a presence rule. The input event lasts for two seconds, so the resulting logical rule event
lasts for seven seconds.