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Alarm Operators

Operators enable you to give an alarm conditions a basis for comparison. You can use any of the following operators:

Operator
Definition
Example
==
equals (Note: the equals operator will not issue an alarm unless the price specified is reached).
TIME==13:00
>=
greater than or equal to
SPZ4>=475
<=
less than or equal to
USZ4<=450
!=
not equal
FORM1!=100
>
greater than
SPH5>SPZ4
<
less than
SPZ4<SPH5

The equal sign by itself carries out the task of assignment. For example, when you create a formula, i.e.,

FORMULA_NAME=SPZ4+SPH5

the equal sign assigns the expression to the formula name. By contrast, two equal signs together causes the program to compare, which is what you want an alarm to do. For example, if you want to know when it is one oclock, you set a time alarm as follows:

TIME==13:00

This alarm compares the system time to 13:00. When the two are equal, the alarm is issued.