Cooperative Control -B Y -Event; Programming Examples - Notifier 1010 Installation And Programming Manual

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OOPERATIVE ONTROL
The Null Control-By-Event
The simplest type of Control-By-Event is the Null, which means empty. For initiating devices, the
Null is denoted by entering ( ) as the Control-By-Event. In response to an alarm on a device
programmed with a Null Control-By-Event, the 1010/2020 will do the following:
• Initiate a System Alarm condition (Alarm LED flashes and the piezo sounds).
• Activate no control modules or software zones (no output appliances will sound and no
output relays will be activated due to the fact that there are no entries in the Control-By-Event for
this initiating device).
For Output Devices, the Null is denoted by entering OR( ) or ( ).
Note: Entering just an open bracket "(" is equivalent to entering "OR (". A control module
programmed with a Null Control-By-Event will not be activated unless it is included in the Control-
By-Event of a software zone or initiating device.
C.B.E P
ROGRAMMING
C.B.E Equations
The examples below illustrate the effective use of Control by Event Equations, and the flexibility to
carry out any function.
Combinational Logic
Example # 1:
L1D1, L1D2, and L1D3 activate Z1.
L1D4 activates Z2.
If Z1 activates,
L1M1 will activate.
If Z2 activates
L1M4 will activate.
The equation AND(Z1 Z239) requires
both to be active for an output.
Because reverse zone 239 has a NOT operand,
it is active as long as L1D4 is NOT active.
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XAMPLES
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