
Introduction
1.3 Functionality of the acquisition component
SIMATIC Energy Manager PRO V7.1 - Acquisition
6 System Manual, 07/2018, A5E38952756-AB
Functionality of the acquisition component
Note
Energy Manager Basic/PRO
This manual is valid for both Energy
Manager Basic and Energy Manager
PRO. To make the
manual easier to read, the term Energy
Manager PRO is used instead of
Manager Basic/PRO.
The Energy Manager PRO Acquisition or acquisition component is installed as a separate
application and provides the requirements for acquiring data from the field and / or process
level.
In case of multiple locations, depending on the network configuration, one Energy Manager
PRO acquisition component should be used for each location. In the Energy Manager PRO
Acquisition component acquisition values are stored, compressed values are transferred via
the Intranet / Internet to the Energy Manager PRO Server into the database.
Compression functionality
The acquisition component automatically compresses the acquisition values of a datapoint
that are smaller than or equal to one day. Acquisition values that are larger than one day are
stored without compression directly at the Energy Manager PRO Server into the database.
The compression levels 1 minute, 15 minutes, 1 hour as well as 1 day are selected
automatically when a datapoint is created, but can be deselected, if necessary, via the
"Compression" button. Entry values are compressed to the selected compression levels and
saved in the database. This means that incoming 1-minute values, for example, are
compressed to 15-minute values, 1-hour values and 1-day values and the compressed
values are saved in the database. Further compression levels can be selected additionally.
Minimum, maximum, average, sum and power
The acquisition component automatically calculates for each compressed value the
minimum, the maximum, the average, the sum and the power and stores these values in
addition to each compressed value into the database. Important for the correct calculation of
the statistical values is a corresponding definition in the "Type" field at the datapoint (Power,
Energy, Counter Value, Process Value). The statistical values are visible in the measured
value editor. The time stamp is also specified for each statistical value.
Details about this are available in the Operation Manual "SIMATIC Energy Manager PRO
V7.1 – Operation" in section "Opening the measured value editor".