User Documentation

118
Devices – Energy Analyser D550
2008050000/03/02-2018
INFOBEREICH
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4.3.3 Introduction
4.3.3.1 Data memory
• TheEnergyAnalyserD550hasaashmemoryof128MByte.
• Of this, approx. 112 MByte are available to the user as data memory.
• Homepageadd-onsorlesloadedtotheEnergyAnalyserD550viaFTPreducetheavailabledatamem-
ory.
Initsdeliverycondition,withthefactorydefaultdatamemorycongurationsettings,theEnergyMeter
750 can save the following quantities of data:
Estimated memory capacity for records
• Measured value, mean value, minimum value and maximum value each requires 4 bytes of memory.
• A dataset without measurement values requires 24 bytes of memory.
• A dataset with one measurement value requires the following per record: 24 bytes + 4 bytes = 28 bytes.
• A dataset with one mean value requires the following per record: 24 bytes + 4 bytes = 28 bytes.
• A dataset for a mean value with minimum and maximum values requires the following per record:
24 bytes + 4 bytes + 4 bytes + 4 bytes = 36 bytes.
Example: Measurement value records for the voltage in L1.
Time basis = 60 seconds.
Dataset = 24 bytes + 4 bytes measurement value, i.e.: Dataset = 28 bytes
Required memory per day (86400 seconds): Per day, 86400 / 60 = 1440 datasets are saved.
1440 datasets x 28 bytes = 40320 bytes of memory required per day.
Required memory per month: 40320 bytes x 31 days = 1249.92 kB required memory per month.
Required memory per year: 1249.92 kB x 12 months = approx. 15 MB required memory per year.
4.3.3.2 Error message
• The Energy Analyser D550 display shows the error message “Error CF”.
• Cause
The calibration data cannot be read from the memory without error.
• Remedy
Send the device to the manufacturer forinspection and testing.
4.3.3.3 Jasic
• 7 Jasic programs can be executed simultaneously in the Energy Analyser D550.
• 128 kByte of memory is available for each program.
• Jasic programs are easily created with the graphic programming integrated into ecoExplorer go.