t Owner manual

84 Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
Chapter 3 Energy Data Collector Configuration
Energy Add-On Instruction Factors for Electric Inputs
Energy Factor Tag Description
Set_Meter_Pulse_Factor The kWh value used to scale the input pulses. The value 1.5 represents 1.5 kWh per pulse.
Set_Demand_Interval The value, in minutes, used to calculate the End of Demand Interval (EOI). This value is used only if the Val_End_of
Demand_Type is 2.
Set_Demand_Delay The time value used to reset the end of interval after the Set_Demand_Interval value has been exceeded without a
utility contact or master end of demand contact closure. The value must be in the range of 0…90 seconds.
Set_End_of_Demand_Interval_
Type
The value that defines how the End of Demand Interval (EOI) is triggered.
1 = A local digital input connected to an electric utility meter EOI contact (Inp_End_of_Demand_Utility_Contact).
2 = An internal PLC timer (Demand_Interval _PLC Timer) that is typically used when an electric utility meter EOI
contact is not available.
3 = A master command input (CMD_Master_End_Of_Demand_Interval) typically from a central controller that is used
to synchronize multiple electric meter EOIs.
Set_High_Demand When the demand (kW) value exceeds the Set_High_Demand, the High Demand Fault is set.
Set_Critical_Demand When the demand (kW) value exceeds the Set_Critical_Demand, the High Critical Fault is set.
Energy Add-On Instruction Factors for Gas, Propane, Fuel Oil, Steam, Air and Water Inputs
Energy Factor Tag Definitions
Set_Meter_Pulse_Factor
(1)
(1) The Set_Meter_Pulse_Factor applies only to Energy_xxx_Digital Add-On Instructions. Analog inputs must be scaled to represent flow by using the
engineering units in the table.
The consumption value of each input pulse.
For example, a value of 1.5 for the Energy_Gas_Digital Add-On Instruction, represents 1.5 therms per pulse.
Set_Calc_Interval The time interval, in minutes, used to calculate the average energy flow.
For example, an interval value of 5 will calculate the average energy flow every 5 minutes.
Set_High_Flow When the flow rate value exceeds the Set_High_Flow value, the High Flow Fault is set.
Example 1
: A value of 500 will set the High Flow Fault in the Energy_Gas_Digital Add-On Instruction when the gas flow
rate exceeds 500 therms/hr.
Example 2: A value of 500 will set the High Flow Fault in the Energy_Air_Analog Add-On Instruction when the air flow
rate exceeds 500 cfm.
Set_Critical_Flow When the flow rate value exceeds the Set_Critical_Flow value, the Critical Flow Fault is set.
Example 1
: A value of 750 will set the Critical Flow Fault in the Energy_Gas_Digital Add-On Instruction when the gas
flow rate exceeds 750 therms/hr.
Example 2: A value of 750 will set the Critical Flow Fault in the Energy_Air_Analog Add-On Instruction when the air flow
rate exceeds 750 cfm.
Energy Add-On Instruction Default Consumption Unit
Air cf (cubic feet)
Fuel Oil, Propane, Water gallons
Gas therms
Steam lbs (pounds)
Energy Add-On Instruction Default Flow Rate Unit
Air cfm (cubic feet per min)
Fuel Oil, Propane, Water gpm (gallons per min)
Gas therms/hr
Steam lbs/hr
Energy Add-On Instruction Default Flow Rate Unit
Air cfm (cubic feet per min)
Fuel Oil, Propane, Water gpm (gallons per min)
Gas therms/hr
Steam lbs/hr