[CnsmPrd21] Consumption per period
Program block, name / node subtype: [CnsmPrd21] Consumption per period
Library hierarchy: Universal functions
Family: CnsmPrd
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Configurator
Program blocks are stored in the library without I/Os. Use the auto-create and auto-connect functions to create I/Os and/or to connect them to the interface blocks, e.g., R_A, CMD_B. Alternatively, take the I/Os from the folder containing the predefined I/Os in the library and/or from the plant and connect them to the interface blocks.
CnsmPrd21 reads the truncated present value (property ID 4432) of an accumulator object and calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, CnsmPrd21 saves it and displays it as a consumption from the last period.
The values for the current consumption from the present period and from the last period are saved persistently.
CnsmPrd21 can be used as an energy meter because it reads the value from an accumulator object and displays it as a real value with an analog calculated value.
A period is not a "moving" period. A period is a static period that is derived from the date and time:
A period of one hour is, e.g., between 06:00 and 07:00.
A period of one day is between 00:00 and 24:00.
A period of 15 minutes is between 06:00 and 06:15, then between 06:15 and 06:30, etc.
This program block has the following optional functions:
Option: Consumption per 15 minutes
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last 15 minutes).
Option: Consumption per hour
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last hour).
Option: Consumption per day
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last day).
Option: Consumption per week
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last week).
Option: Consumption per month
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last month).
Option: Consumption per year
It calculates the difference between the current consumption since the beginning of the period and the saved consumption from the last period. At the end of the current period, it saves it and displays it as a consumption from the last period (last year).
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Consumption per year Elements that belong to this option: Consumption per year (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per year (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
Consumption per month Elements that belong to this option: Consumption per month (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per month (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
Consumption per week Elements that belong to this option: Consumption per week (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per week (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
Consumption per day Elements that belong to this option: Consumption per day (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per day (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
Consumption per hour Elements that belong to this option: Consumption per hour (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per hour (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
Consumption per 15 minutes Elements that belong to this option: Consumption per 15 minutes (Present period) | ACalcVal: Analog calculated value | Trend type: 3 Consumption per 15 minutes (Last period) | ACalcVal: Analog calculated value | Trend type: 4 |
The calculated consumptions for the current period and for the last period are stored persistently.
CnsmPrd21 can also be used in a device chart of a meter.