User Guide

Program Methodology—Order of Precedence
Siemens Building Technologies, Inc. 1-45
Table 1-5. Order of Precedence for PPCL Operators.
Precedence
Level
Command Syntax
1 (Highest) Parentheses (expression or value)
2 Alarm priority
ALMPRI(pt1)
Arc-tangent
ATN(value1)
Complement
COM(value1)
Cosine
COS(value1)
Natural antilog
EXP(value1)
Natural log
LOG(value1)
Sine
SIN(value1)
Square root
SQRT(value1)
Tangent
TAN(value1)
Totalized value
TOTAL(pt1)
3 Root
(value1.ROOT.value2)
4 Multiplication value1 * value2
Division value1 / value2
5 Addition value1 + value2
Subtraction value1 - value2
6 Equal to
.EQ.
Not equal to
.NE.
Greater than
.GT.
Greater than or equal to
.GE.
Less than
.LT.
Less than or equal to
.LE.
7 And
.AND.
Not and
.NAND.
8 (Lowest) Or
.OR.
Exclusive Or
.XOR.
APOGEE PPCL User’s Manual
1-46 Siemens Building Technologies, Inc.
Resident Points
Resident points provide time-based and system status information.
These points are used to determine the time, date, month, and day
of the month, or to monitor alarms, modes of operation (DAY or
NIGHT), and communication between nodes.
• The value of a resident point can be tested or assigned to other
points.
• Resident points are predefined and maintained by the device.
Since each device maintains its own set of resident points, a
resident point cannot be used across the network.
NOTE: Do not use resident points in TABLE commands.
PPCL supports the following resident points:
• Alarm count (ALMCNT)
• Alarm count 2 (ALMCT2)
• Battery status ($BATT)
• Decimal time (CRTIME)
• Day (DAY)
• Day of the month (DAYOFM)
• Communications link (LINK)
• Month (MONTH)
• Node number (NODE0 through NODE99)
• Peak Demand Limiting point ($PDL)
• Seconds counter (SECNDS)
• Seconds counters (SECND1 through SECND7)
• Military time (TIME)
Each resident point is described in more detail on the following
pages.