Page 64 of 97
Title FireVu Detector Standalone Installation Manual
NetVu Ltd.
No 1 Thellow Heath Park, Northwich Road, Northwich, Cheshire. CW9 6JB
Expression: The first column in the page is used to enter the details of the alarm input or trigger
which will cause the associated actions in the same row to take place.
All devices (physical or virtual) which can trigger events are named. One example is
LOCAL_INPUT_1, which is physical alarm input number 1, connected to the main board of the
detector.
Actions (active): The second column in the page is used to enter the required action desired when
the expression in the left-hand column is true (active).
Actions (inactive): The third column in the page is used to enter the required action desired when
the expression in the left-hand column is not true (inactive).
You can have more than one action, by separating the actions with a semi-colon.
The 'left-
hand side' of the expression can be any unique label. In the above example “A”, “B”, “C”
etc are used but the label can be anything as long as it is unique and does not clash with other
labels.
Clear: Clears all currently programmed alarm expressions.
Restore: Restores all previously cleared alarm expressions.
Validate: Checks for any illegal values / none existent variables / names.
Commit: Saves the listed expressions.
Import: Allows expressions to be imported from a JSON file. This facilitates copying expressions
made on another unit.
Export User : Exports user-created expressions to a JSON file.
Export All : Exports all expressions to a JSON file.
Show Wizard expressions: displays expressions which have been created by a wizard.
Alarm
– Activity page
This Web-page enables cameras to be configured to automatically detect any movement or
changes within the video scene and trigger a number of operations such as an increase in
recording rate.