Siemens SENTRON PAC4200, Manual, Page: 125 / 252

Parameterizing
9.2 Parameterizing the operator interface
SENTRON PAC4200
Manual, 09/2008, A5E02316180B-01
125
9.2.5 Power demand
Settings for the load profile.
Call: "SETTINGS > POWER DEMAND."
POWER DEMAND
SUBPERIOD Period for calculating the load profile data according to the
"fixed block" or "rolling block" method.
SENTRON PAC4200 supports the fixed block method as a
special case of the rolling block method. The most important
distinguishing feature is the number of subperiods.
The length of the demand period is defined as the product of
the length of a subperiod and the number of subperiods.
Length
demand_period
= n * length
subperiod
; n = number of
subperiods
SUBPERIOD TIME Length of the subperiods:
Range: 1 ,2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 min
Default value: 15 min
SUBPERIOD # Number of subperiods
Range: 1 to 5
Default value: 1
The number "1" defines the fixed block method.
The numbers "2" to "5" define the rolling block method.
SYNC. SOURCE Source of the synchronization pulse for synchronizing the load
profile recording.
Range: NONE, BUS, DIG. INPUT, INT. CLOCK
NONE Synchronization is switched off.
BUS Synchronization via the
communication interfaces.
DIG. INPUT Synchronization via the digital
input.
INT. CLOCK Synchronization via the internal
clock.
Default : INT. CLOCK
The digital input must have been parameterized for this
purpose before you can synchronize via this input
("SETTINGS > INTEGRATED I/O > DIGITAL INPUT",
"ACTION" field, value = "DEMAND SYNC"). The "SYNC.
SOURCE" field is automatically reset to "NONE" if another
function is assigned to the digital input.
See also
Load profile (Page 29)