Tips And Tricks - Siemens Simatic ET 200SP Manual

Tips and tricks

F.1 Tips and tricks
Processing and visualizing energy data
On the basis of an application example we show you how the measured values of the
AI Energy Meter can be processed further and visualized.
You can find this application example on the Internet
(http://support.automation.siemens.com/WW/view/en/86299299).
Overview of the measuring data
We provide you with an overview of the assignment of the measured values to the user data
variants and data records in an Excel file.
You will find the Excel file on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109755917).
Time-of-day synchronization and time stamp
In an application example we show you how to synchronize the time with the AI Energy
Meter HF and work with measured values with time stamps.
You can find this application example on the Internet
(http://support.automation.siemens.com/WW/view/en/109754890).
Measured values in STEP 7 as of V5.5
Measured values are represented as negative values in STEP 7 as of V5.5 if the value range
of the integer format (32767 dec) is exceeded. This is not an error in the measured value.
Solution: Select hexadecimal representation.
Conversion of 64-bit floating-point numbers
If you cannot process 64-bit floating-point numbers in your automation system, we
recommend conversion to 32-bit floating-point numbers. Note the conversion can cause loss
of accuracy. For a description of the conversion of the 64-bit floating-point numbers (data
type LREAL) into 32-bit floating-point numbers (data type REAL) please refer to the Internet
(http://support.automation.siemens.com/WW/view/en/56600676).
See also
FAQ (http://support.automation.siemens.com/WW/view/en/109755917)
Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA
F
269