Operator Conditional Statement - Link4 iGrow 1800 Installation And User Manual

2 OPERATOR CONDITIONAL STATEMENT

One of important concept to keep in mind is that each conditional statement there is
typically one operator. In the example above, the operator was the "greater" ( > ) operator.
The ACCs structure also allows for statements with NO operator, or TWO operators. 3 or more
operators are not possible.
The No operator case is actually a shorthand version of the > 0 statement. For example,
a digital input is either 0 or 1. So you could write
When Digital 1 is > 0 ......
or just write When Digital 1 ........
In other words, just omit the > 0 portion of the statement.
The 2 operator condition is fairly common in controls. They are usually in the format of
greater than _____ AND less than ______. Here is an example:
Let's say you have a Vent, that you want to open to 25%, but only when it's not too dry
(>30% RH) nor too humid (<90% RH) outside. Conditions must be met for 10min to be valid.
Continuing from above examples, and add a new control statement:
As usual, add an operand, however this time chose the number operand first.
Then choose the less than operator
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