t Owner manual

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