Manual VIPA System 300V Chapter 3 Profibus DP
HB130E - IM - Rev. 08/26 3-3
Basics
Profibus is an international standard applicable to an open fieldbus for
building, manufacturing and process automation. Profibus defines the
technical and functional characteristics of a serial fieldbus system that can
be used to create a low (sensor-/actuator level) or medium (process level)
performance network of programmable logic controllers.
Together with other fieldbus systems, Profibus has been standardized in
IEC 61158 since 1999. IEC 61158 bears the title "Digital data com-
munication for measurement and control - Fieldbus for use in industrial
control systems".
Profibus comprises an assortment of compatible versions. The following
details refer to Profibus DP.
Profibus DP-V0 (Decentralized Peripherals) provides the basic functionality
of DP, including cycle data exchange as well as station diagnostic, module
diagnostic and channel-related diagnostic.
Profibus DP is a special protocol intended mainly for automation tasks in a
manufacturing environment. DP is very fast, offers Plug'n'Play facilities and
provides a cost-effective alternative to parallel cabling between PLC and
remote I/O. Profibus DP was designed for high-speed data communication
on the sensor-actuator level.
The original version, designed DP-V0, has been expanded to include
version DP-V1, offering acyclic data exchange between master and slave.
DP-V1 contains enhancements geared towards process automation, in
particular acyclic data communication for parameter assignment, operation,
visualization and interrupt handling of intelligent field devices, parallel to
cycle user data communication. This permits online access to station using
engineering tools. In addition, DP-V1 defines interrupts. Examples for
different types of interrupts are status interrupt, update interrupt and a
manufacturer-specific interrupt.
If you’d like to use the DP-V1 functionality you have to make sure your DP
master also supports DP-V1. More detailed information about this is to be
found in the documentation of your DP master.
General
Profibus
DP-V0
Profibus
DP-V1
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