Siemens 7SJ85 - Protection Communication; Overview; Protection-Communication Structure

Protection Communication
Overview
Protection communication includes all functionalities required to exchange data via the protection interface
(PI). It manages one or a maximum of 2 protection interfaces. The Protection communication is generated
with the configuration of the channels as a protocol.
You can find detailed information in the section Protection interface in chapter 3.5.3.1 Overview of Func-
tions.
Protection-Communication Structure
The following Protection communication functions are visible:
•
Topology recognition
•
Remote data
The following figure shows the structure of Protection communication:
[dwstrufg-171012-01.tif, 1, en_US]
Figure 3-36 Protection-Data Communication Structure
Interface to VI 3-Phase Function Group
Binary signals, measured values, and other data are automatically exchanged between the Protection-data
communication and the VI 3-phase protection function group.
Interface to Motor Function Group
Binary signals, measured values, and other data are automatically exchanged between the Protection-data
communication and the Motor protection function group.
Remote Data
The Remote data functionality is applied if you route a specific signal or a measured value to the protection
interfaces. The protection interface then attends to the transmitting and receiving of such signals. The
maximum amount of remote data is defined by the available bandwidth.
3.5
3.5.1
3.5.2
System Functions
3.5 Protection Communication
SIPROTEC 5, Overcurrent Protection, Manual 111
C53000-G5040-C017-8, Edition 07.2017