t Owner manual

442 Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
Appendix D Digital and Analog Energy Add-On Instructions
To calculate the average flow rate, Val_xxx_Per_Calc_Interval, the logic uses the Set_Calc_Interval, in minutes, to
configure the sample interval. A MUL instruction converts the sample interval in minutes to milliseconds for the
Avg_Flow_Interval_PLC_Timer preset. At the end of interval, Val_Total_xxx is compared to the previous interval's
Val_Total_xxx and the flow rate, Val_xxx_Per_Min or Val_xxx_Per_Hr, is calculated.
The average flow rate, Val_xxx_Per_Calc_Interval, is calculated by dividing the flow rate (in minutes) by the
Set_Calc_Interval, which you previously entered.