Picture Perfect 4.6 User Manual - UTCFS Global Security Products

Chapter 8
Device management
127
Parent input groups
Keep the following in mind, when working with Parent Input Groups:
• An input group that is connected to a parent input group becomes an input of that parent
input group, and is subject to the parent’s Boolean or non-Boolean settings.
• Each input group can have up to three input groups as its parents, and each input group can
be the parent of any number of input groups. An input group cannot be its own parent.
• A tree-like hierarchy of input groups can be built, with each input group propagating its state
changes on to its parent input group. Do not create a circular hierarchy, where A is a parent of
B, and B is a parent of A.
• An input group’s alarm and output groups are not affected by its association with a parent.
They all work independently.
Note:
Changes to parent input groups through schedules only take effect on the child input groups after the controller
has been reset.
Example of a parent input group
A high-security vault is equipped with three motion detectors and a security guard patrols the vault
periodically. Any one of the motion detectors must be able to activate the alarm, but the alarm must
be disabled during the patrol.
This scenario can be resolved as follows: (See Figure 53, Example of a Parent Input Group on
page 128)
1. Assign the three motion detectors (inputs 1, 2, and 3) to a Motion input group. This input
group would have a boolean type of Any, so any single motion detector could activate this
group.
2. Assign Motion the parent input group of Vault. No alarms or outputs are associated directly
with Motion.
3. Assign Vault the appropriate alarm and output groups desired for motion being detected in
the vault area, and assign it a boolean type of All.
4. Associate a toggle reader (see Toggle on page 179) with an input group called Control. The
toggle reader is the only input in this group. Control is a Trigger on Input (Individual) input
group which is non-boolean, so a badge swipe through this reader toggles the input group’s
state on or off.
5. Assign Control the parent input group of Vault. No alarms or outputs are associated directly
with Control.
Vault’s only inputs are its child input groups, Motion and Control. Both of these must be activated to
trigger the alarm, since Vault’s boolean type is All.
When the vault is unpatrolled, the toggle reader is used to toggle-on Control, meaning that this input
group is activated. If any of the three motion detectors should activate, the Motion input group is
triggered (since its boolean type is Any). The Vault input group then receives the activated state
change of Motion. When that happens, the All condition of Vault has been met, and the associated
alarm and output groups are triggered.