3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
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PROFIBUS data transfer
6
6.1
Integration of the circuit breakers into a communication system
There are diverse possibilities for integrating the SENTRON circuit breakers into a
communication system. A shared profile (type and content of the data transfer) for
SENTRON WL and SENTRON VL also enables the use of identical programs at the
automation level and the PC level.
6.2
Communication
The PROFIBUS DP modules COM15 for the SENTRON WL and COM20 for the
SENTRON VL have been briefly introduced in the earlier chapters. Both modules are the
interfaces between the circuit breakers and the information world. From the perspective of
PROFIBUS DP, the COM15 and COM20 behave identically here. This has the advantage
that for all circuit breakers from 16 A to 6300 A, a shared GSD file (generic station
description) can be used for integration into PROFIBUS DP systems. A distinction cannot be
made and need not be made. With an identical PROFIBUS DP profile, it is possible to
identify the addressed circuit breaker in detail (e.g. device description, order number, test
date, etc.).
Another significant advantage of a shared communication profile is the use of identical
software for automation systems and PCs, and for operator control and monitoring software
like WinCC and PCS7.
The figure below shows the different communication options in a chart.