Bus Systems; Profibus Dp - Siemens SENTRON VL Series System Manual

Saving costs
The benefits of the SENTRON circuit breakers result both from their modular design and
compact construction. This saves costs for work processes in planning and trade, and for
switchgear manufacturers and plant operators. It also saves space and energy.
Easy planning
This results from the use of the SENTRON circuit breakers and the SIMARIS deSign
planning tool, which enables the solution of previously tedious and difficult processes,
primarily for planning offices but also for control cabinet builders.
System solutions
Embedding of the SENTRON circuit breakers into a higher-level communication system
makes it possible to parameterize the circuit breakers via PROFIBUS DP, Ethernet or the
Internet, or to optimize the entire power distribution system by means of an integrated
power management system.
1.2

Bus systems

Bus systems are used to connect distributed devices with various levels of intelligence. Bus
systems differ in their topologies and mechanisms, with some designed for quite specific
application cases, and others aimed more at open applications.
Bus systems in automation
The most important bus systems in the areas of automation and power distribution are
described below:
● PROFIBUS DP
● Ethernet
● Modbus RTU
1.2.1

PROFIBUS DP

Definition/standard
PROFIBUS DP is an open, standardized and multi-vendor fieldbus system. It is standardized
in compliance with IEC 61158/EN 50170 and is thus the ideal basis for the high data
exchange requirements in the area of distributed I/O and field devices. To-date (July 2007),
more than 1,100 manufacturers offer in excess of 1,700 products and the user organizations
in 23 countries support the users of more than 4 million installed PROFIBUS nodes.
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
Introduction and overview
1.2 Bus systems
11