Unitary

Pre-APOGEE

APOGEE

BACnet

PXC.A

Syntax

If (cond1.AND.cond2) then...

cond1,cond2

Defines a condition that is the result of a comparison between two values.

Use

  • Used to compare two logical conditions.
  • If both conditions are true, the result of the comparison is true.
  • A single statement can incorporate a combined total of 16 relational and logical operators.

See Table 1-1 for a comparison of conditions used with the .AND. logical operator:

Table1-1.  Truth Table for .AND. Logical Operator.

 

Condition 1 False

Condition 1 True

Condition 2 False

Result is False

Result is False

Condition 2 True

Result is False

True

Example

200 IF (TIME LT.19:00.AND.TIME.GT.5:00) THEN ON(LIGHTS)