Siemens Simatic ET 200SP Manual page 18

TB, TT and IT system
The AI Energy Meter HF can be used in TN, TT and IT systems.
Measuring with AI Energy Meter HF
A typical supply network of a production plant is usually divided into three voltage ranges:
● The infeed of the entire plant
● The subdistribution, for example, to individual lines within the plant
● The end consumers such as the machines in the lines.
The following figure shows the measurement in an electricity supply network:
Figure 2-2
Advantages of the AI Energy Meter HF
The AI Energy Meter HF has the following advantages:
● Space-saving especially for use in control cabinet
● PROFINET IO or PROFIBUS DP (depending on the interface module in use)
● Multiple modules can be used with one interface module
● Extension of existing stations by components for energy recording
Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA
2.3 Special considerations for use on the PROFIBUS DP and PROFINET IO
Use of the AI Energy Meter HF
Product overview
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