Rockwell Automation Energy Management Accelerator Toolkit Quick Start User Manual
Page 391

Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
391
Demand Control Chapter 12
The PM UDT is used to store the main load attributes for each load.
Most of the demand controller tags will be added as program scope tags. However, there are a few tags that will be added as
controller scope, shown in the figure below. The power monitor message tags are required by the Message instruction to be
controller scope. The FP_DMD tag has been configured as controller scope to minimize the length of the tagnames used in
the HMI.
Name
Data Type
Description
MeteringIteration
REAL
Read from PowerMonitor Demand Results
element
Predicted_Demand_KW
REAL
Read from PowerMonitor Demand Results
element
Present_Billing_Demand_KW
REAL
Set to the max of interval demands during the
on-peak time-of-use periods in the current billing
month
Real_Power_Demand
REAL
Read from PowerMonitor Demand Results
element
Period_Remaining_Sec
REAL
Seconds remaining in the current interval
Interval_Elapsed_Time
REAL
Read from PowerMonitor Demand Results
element
Real_Time_Clock
DINT[7]
Read from PowerMonitor Date and Time
Configuration element
Demand_Period_Min
DINT
Read from PowerMonitor Advanced
Configuration element
Number_of_Demand_Periods
DINT
Read from PowerMonitor Advanced
Configuration element
Billing_End_Date
DINT
Monthly billing date
End_Of_Interval
BOOL
Set for one scan at the end of each 15-minute
interval
Alm_Comm
BOOL
Loss of Communication Alarm
Alm_Cfg
BOOL
Invalid Demand Configuration Alarm
Interval_Timer
TIMER
15 minute interval timer, synchronized with the
interval elapsed time in the PM once per interval
Billing_Start_Init
TIMER
Present Billing Demand Initialize Timer
Comm_Timer
TIMER
Communication Alarm Timer