4.3 Load Profile Datalogging
This type of datalogging stores data on each day at time 00:00. The parameters stored in this log include all
energies and maximum demands. This log stores data daily as well as monthly interval. Hence, daily and monthly
energy consumption can be logged. Furthermore, maximum power demand and maximum current demand during
each day and each month is also logged . This data can be used to study load behaviour over a period of time.
The daily data available to the user is maximum of one year interval and the monthly data for 14 years interval
assuming the log requested is after the starting date (requesting data before the starting date will result in modbus
exception message). 1 year after the starting date, the oldest logs of daily data are constantly replaced with latest
logs. 14 years after the starting date, all the load profile logs for that channel are cleared and logging is started
again.
This log can be selected or de-selected using memory location 46253, if it is selected, then energy, maximum
demand will be logged. The starting date of this datalog is stored in read only memory location 46255.
The user can access different parameters in this log by sending queries using following addresses.
Note: Changing the meter date resets the load profile log.
Parameter
Modbus Start Address Hex
High Byte Low Byte
Daily Energy Datalog Download Addr 01 CC
Daily Maximum Demand Datalog Download Addr 01 CE
Monthly Energy Datalog Download Addr 01 D0
Monthly Maximum Demand Datalog Download Addr 01 D2
TABLE 17: Addresses for Load Profile datalog access
Parameter
number
Description
01
02
03
04
05
Imp wa energy
Exp wa energy
Capacive VAr energy
Inducve VAr energy
Apparent energy
Parameter
number
Description
01
02
03
04
05
06
Imp wa Max demand
Exp wa Max demand
Capacive VAr Max demand
Inducve VAr Max demand
Apparent Max demand
Current Max demand
TABLE 18: Parameter number for Energy
datalog Load Profile
TABLE 19: Parameter number for max. Power
Demand datalog Load Profile
53
To Next Page
Loading...
