Interlogix VEREX Director - Manual (Page 287)

21-0381E v4.9.1 Welcome Report Control Admin Sys Config Tech-Ref 279
Converting Your Language into an Operator:
 On/While something is in Effect: Is an "AND"
operation;
 Except/Unless something is in Effect: Is an "AND
NOT" operation";
Tip: Use the "Toggle Invert" command to insert the
"NOT" function.
Brackets and Equation Processing
When segments are added (via "Insert Operation"),
they will be inserted on the left or right (per your
selection), and are bracketed together with it.
Brackets determine the order in which the equation
will be processed, with items inside brackets being
evaluated first (deepest nested brackets first, and
then moving outward from there). Try inserting two or
three dummy/temporary operations, and you'll see
how it works.
Example A: With "(Condition1 AND (Condition2 OR
Condition3))" the output will trigger only if Condition2
or 3 (or both) is in effect at the same time as
Condition1.
Example B: With "((Condition1 OR Condition2)
AND (Condition3 OR Condition4))" the output
will trigger if at least one item from each side of the
"AND" is in effect at the same time.
Example C: If you start with example B,
right-click Condition1, select "Insert
Operation on right" , and set it as an AND
function, you will have: "(((Condition1 AND
NewCondition) OR Condition2) AND
(Condition3 OR Condition4))".
The equation would be evaluated in this
order: 1) C1 AND New; 2) Result1 OR C2;
3) C3 OR C4; 4) Result2 AND Result3.
Note: The deepest-nested brackets are analyzed
first.
Equations with Cadence (pulsing)
To obtain a pulsing output, System - Cadence
functions must be "ANDed" with the portion of the
equation to which they apply. If all conditions of
the equation are to cause a pulsing output, the
cadence function should be set up first, with
everything else appearing within a pair of brackets
on the left or right.
Tip: "ANDing" different cadence selections (or
none) with the various segments of an otherwise
"OR" equation allows a single output to respond
differently to different types of events.
For one type of cadence for an entire equation
(for example):
 Set up a System - Cadence function first;
Also See: "Cadence (Getting the Output to Pulse On
and Off)", previous/above.
 Right-click within it, and select Add
Operation on right;
 Set up the second operation as desired,
being sure to use an "AND" operator;
 Insert any other operations by right-clicking
on segments to the right of the cadence
function (not within the cadence function
itself).
"AND/OR"s (Boolean Operators for Multi-Condition
Equations):
If "This" And/Or "That" is true
Choice This That Output Will trigger:
OR






When either condition (or
both) are true.
AND
 
Only when both are true.
NOR
 
Only when neither one is
true (i.e., both NOT true).
NAND






When either one or
neither of them are true,
but not both.
XOR




When one or the other is
true, but not both.
XNOR




When both or neither are
true, but not one or the
other by itself.
Tips: You're likely to use "AND" and "OR" the most.
To invert a selection (i.e., "trigger the output when something
is NOT true): Right-click the operator, and select Toggle
Invert. Note: If you end up with two "NOTs" inside the same
set of brackets, your equation will be automatically converted
to a simpler equivalent.
("NOT A" OR "NOT B" = A NAND B;
"NOT A" AND "NOT B" = A NOR B.)