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Recording water usage for each calendar day on S7-1200

Created by: msoeren at: 3/9/2013 12:14 AM (5 Replies)

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3/9/2013 12:14 AM	Rate (0)
msoeren Posts: 6 Rating: (0)	Hello good people. I wonder if anyone has a good tip or a great example, for recording e.g water usage for each calendar day.In practive this could be any incoming pulse, but it must be calculated for each day, and then for eac month... All tips appreciated. Best regards P.Sorensen
msoeren Posts: 6 Rating: (0)
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3/9/2013 9:26 AM	Rate (0)
Homeroid_BL Posts: 211 Rating: (6)	Hello! Create two-dimensional array (1..12,1..31) forDINT or REAL type to put your DAILY_VALUE. Read RTC to find MONTH and DAY, and HOUR. Then useField Write instruction to do this: If (HOUR=0), make a one-cycle pulse to put DAILY_VALUE to a field location (MONTH, DAY). When needed to calculate month sum or average, use loop instruction TOTAL=0 fori = 1 to 31 TOTAL =TOTAL + VALUE(Seleceted_month, i) next i If average is needed AVG=TOTAL/n (n=30 forarpil,june, sept, nov),28/29 for Feb, 31 for rest) Best regards!
Homeroid_BL Posts: 211 Rating: (6)
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This contribution was helpful to 1 thankful Users msoeren

3/10/2013 2:04 PM	Rate (0)
msoeren Posts: 6 Rating: (0)	Hello again. What if to use a counter and move the counted_value for each day, and then move the value for each month ? Anyone has a good example on how to acomplish this? I would be very greatful for any reply. Best Regards P.Sorensen
msoeren Posts: 6 Rating: (0)
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3/15/2013 7:07 PM	Rate (0)
msoeren Posts: 6 Rating: (0)	Hello again. I have been able to extract month or date from RD_LOC_T and conv it from USint to Dint to get EITHER month or date. And i have created a twodimensional array , corresponding from 1..12,1..31 for month and day. But i am not able to get fieldwrite to accept recording actual values in to the array, i get the error message access to multidimensional arrays is not permitted at point. This is the member field. (No problem using single array for e.g day or month alone. And i still cant figure out how to separate RD_LOC_T to month,day.Or combine 2 separate readouts to get the value for the index field. If anyone have a good tip or a advise on how to overcome this i would be very thankful. Best regards P.Sorensen
msoeren Posts: 6 Rating: (0)	Last edited by: msoeren at: 3/15/2013 7:07 PM
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3/15/2013 9:06 PM	Rate (0)
Homeroid_BL Posts: 211 Rating: (6)	Hi! Here is a program (TIAP V11 SP4 Upd4) that AT THE END OF EACH DAY writes ProcessVariable at proper filed location. Just January and February but You will figure out the rest. Best regards! Attachment Example.zip (583 Downloads)
Homeroid_BL Posts: 211 Rating: (6)
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3/15/2013 9:45 PM	Rate (0)
msoeren Posts: 6 Rating: (0)	Thank you so much, i do not know what to say, but many thanksBest regards P.Sorensen
msoeren Posts: 6 Rating: (0)
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