Rockwell Automation Energy Management Accelerator Toolkit Quick Start - Manual (Page 390)

390 Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
Chapter 12 Demand Control
The Load UDT is used to store the main load attributes for each load.
Name Data Type Description
Name STRING Load Description
Number DINT Load Number
Priority DINT Load Priority 1…16 (Priority 16 loads are shed
first)
kW_Rated DINT User Input (0…65535)
kWh_Sheddable DINT kW_Rated * PM.Period_Remaining_Sec/3600
Inp_Status BOOL Status of load from discrete input 0=Off 1=On
Avail BOOL 0=Override, 1=Normal
Shed_State BOOL Shed (on) Normal (off)
Out_Shed BOOL 1=Shed Load
Intlk_State BOOL 1=Interlocked (Load not available to shed)
Intlk_Bypass BOOL User command to bypass all interlocks
Alm_FailToShed BOOL Load Shed Failed Alarm
Val_Status DINT Status Value used to drive status indicators on
the faceplate
Off_Delay_Sec DINT Min time on before shedding User Input
(0…3600 s)
On_Delay_Sec DINT Min time off before restarting User Input
(0…3600 s)
Max_Off_Time_Sec DINT Max time per hour shed User input (0…3600 s)
Alm_DelayTimer TIMER Failed to Shed Alarm Delay Timer
Off_Delay_Timer TIMER Min time on before shedding timer
On_Delay_Timer TIMER Min time off before restarting timer
OneHourTimer TIMER Rolling One Hour Timer to limit the amount of
time per hour the load is shed
Max_Off_Timer TIMER Maximum Off (Shed) timer
Min_Since_Shed_Timer TIMER One minute timer used to count the minutes
since shed
Minutes_Since_Shed COUNTER Incremented each time the minutes since shed
timer is done
storagebits BOOL[32] Miscellaneous storage bits used for
programming