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Goals and Symptoms
Customer is logging value X every Y minutes
Value X is reset back to 0 after it has been logged.
How can the user keep a running total of that value?
Facts and Changes
StruxureWare Power Monitoring (SPM) or ION Enterprise (IONE)
Causes and Fixes
A cumulative usage or totalizer is needed.
Use an arithmetic module with the following formula:
S1 + PR1
Where S1 is X
Where PR1 is the previous result from R1.
Set the CalcNow of the arithmetic module to the pulse of quantity X's reset.
Assume the following:
Data value X is reset every 15 minutes after logged.
At the end of 15 minutes X = 5
At the end of 30 minutes X = 2
At the end of 45 minutes X = 11
At the end of 60 minutes X = 7
Arithmetic Module's formula would output the following:
At the end of 15 minutes R1 = 5
At the end of 30 minutes R1 = 7
At the end of 45 minutes R1 = 18
At the end of 60 minutes R1 = 25