User Guide

Command Syntax
Siemens Building Technologies, Inc. 3-89
Example
200 C
202 C PDLMTR COMMAND INFORMATION:
204 C
206 C - HISTORICAL WEIGHTING FACTOR - 30%
208 C - CALCULATION INTERVAL - 1 MINUTE
210 C - PREDICTION WINDOW - 15 MINUTES
212 C - THE TIME VERSUS DEMAND SECTION OF
214 C THE ACTIVITY REPORT PLOT HAS A
216 C FULL SCALE OF 500 KILOWATTS.
218 C - WARNING MESSAGES ARE ENABLED TO
220 C BE SENT TO ALARM DEVICES.
222 C - THE DEFAULT VALUES OF THE TWO
224 C METER POINTS (METER1 AND
226 C METER2) ARE 100 KILOWATTS AND
228 C 50 KILOWATTS RESPECTIVELY.
230 C
250 PDLMTR(1,30,1,15,500,1,METER1,100,
METER2,50)
Notes
• Only one PDLMTR command can be defined per meter area.
• For APOGEE field panels, one PDLMTR command can be
defined per program.
• With pre-APOGEE firmware, one meter area can be defined in a
field panel.
• If a LPACI point is used in a PDLMTR statement, then PDL
should be restarted for that meter area after the LPACI is reset.
See also
PDL, PDLDAT, PDLDPG, PDLSET
APOGEE PPCL User’s Manual
3-90 Siemens Building Technologies, Inc.
PDLSET (PDL, setpoints)
Unitary pre-APOGEE APOGEE BACnet
  
Syntax
PDLSET(area,exceed,set1,time1,...,set7,time7)
area Meter area.
• In order for the program to operate correctly, the
same numeric value must be used for the meter area
parameter in the PDLDPG, PDLMTR, and PDLSET
statements.
• This parameter is an integer.
exceed DO point which is turned ON if the actual floating window
peak exceeded the setpoint at any time during the preceding
interval. This point is reset to OFF at the end of each setpoint
interval.
set1
through
set7
Demand setpoint (in kilowatts) that is not to be exceeded.
• This parameter can be a decimal, integer, point
name, or a local variable.
time1
through
time7
The time at which the corresponding setpoint ends.
• This parameter is usually entered as a clock time in
military format (7:30 p.m. = 19:30). It can also be
entered as a decimal, integer, or a local variable.
• Times must be in ascending order.
Use
The PDLSET command designates the peak demand limiting (PDL)
levels and ensures that the PDL levels for a meter area are not
exceeded during the time those setpoints are in effect.
Demand predictions made by the PDLMTR command are compared
with the appropriate setpoints defined by the PDLSET command.
The PDLSET command then determines the number of kilowatts (if
any) that must be shed or restored for the meter area.