User Guide

Program Methodology—Relational Operators
Siemens Building Technologies, Inc. 1-13
Greater than (.GT.)
Unitary pre-APOGEE APOGEE BACnet
   
Syntax
if (value1.GT.value2) then...
value1,
value2
These values are defined as analog or digital numbers,
local variables, or point names.
Use
Compares two values to determine if the first value (value1) is
greater than the second value (value2). The comparison is true if
value1 is greater than value2.
Example
250 C IF THE ROOM TEMP IS GREATER THAN
260 C 80, THEN SET THE SET POINT TO 70
270 C
280 IF (RMTEMP.GT.80.0) THEN RMSET = 70.0
APOGEE PPCL User’s Manual
1-14 Siemens Building Technologies, Inc.
Less than or equal to (.LE.)
Unitary pre-APOGEE APOGEE BACnet
   
Syntax
if (value1.LE.value2) then...
value1,
value2
These values are defined as analog or digital numbers,
local variables, or point names.
Use
Compares two values to determine if the first value (value1) is less
than or equal to the second value (value2). The comparison is true if
value1 is less than or equal to value2.
Example
300 C IF THE ROOM TEMP IS LESS THAN OR
310 C EQUAL TO 80, THEN SET THE SET POINT
320 C TO 70
330 C
340 IF (RMTEMP.LE.80.0) THEN RMSET = 70.0