3WL air circuit breakers
3.1 Introduction and overview
3WL/3VL circuit breakers with communication capability - PROFIBUS
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System Manual, 03/2011, A5E01051353-02
PROFIBUS DP connection
The circuit breaker is connected to PROFIBUS DP via the RS485 interface of the COM15
module. It is possible to run networking/communication at a higher level (intranet/Internet)
using the Breaker Data Adapter PLUS.
3.1.1
The CubicleBUS
Within the integrated and modular architecture of the SENTRON WL, the CubicleBUS
connects all intelligent components within the SENTRON WL and enables simple and safe
connection of other external additional components. The CubicleBUS is already prepared in
all complete circuit breakers with the trip units ETU45B and ETU76B
(CubicleBUS integrated). Only in conjunction with COM15 and BSS is all data available and
usable via the CubicleBUS.
Retrofitting components
The high modularity of the system allows retrofitting of communication functions (e.g.
metering function) at any time. Retrofitting of a SENTRON WL that does not yet have
communications capability (e.g. change from ETU25B to ETU45B, BSS and COM15 with
CubicleBUS) is also possible on-site in the plant. All modules on the CubicleBUS can access
the available source data of the circuit breaker direct and thus ensure extremely high-speed
access to information.
In addition, the connection of external add-on modules to CubicleBUS allows low-cost
solutions for connecting further communication-capable devices in the switching station.
The figure below shows the system architecture of the SENTRON WL that with the
CubicleBUS enables simultaneous communication via PROFIBUS DP.
The breaker can be parameterized via the Ethernet interface with the help of BDA PLUS.