VEGA VEGACOM 557 Profibus FMS - Manual (Page 44)

44 VEGACOM 557 Profibus FMS
Supplement
5 Supplement
5.1 General information on PROFIBUS
Note:
This chapter is an excerpt of the PNO documentation PROFIBUS, and is to be used only as an
informational aid.
General automation
Profibus FMS
(DIN 19 245 T1 + T2)
EN 50 170
Application-specific
profiles:
Textile industry
Drive engineering
Sensor and actuator technology
PLC
Low-voltage switchgear
Production automation
Profibus DP
(DIN 19 245 T1 + T3)
EN 50 170
Quick
data exchange
with the
decentralised
peripherals
Process
automation
Profibus PA
(DIN 19 245 part 4)
Intrinsically safe
transmission technology
acc. to
IEC 61158-2
PROFIBUS consists of three versions for
different applications:
Profibus FMS
The FMS services (Fieldbus Message Speci-
fication) open a wide application range, offer
considerable flexibility, and ensure that com-
prehensive communication tasks with cyclical
or acyclical data traffic can be managed at
medium speed.
Since 1990, Profibus FMS is published as
standard in DIN 19 245, part 1 and part 2.
Along with the European Fieldbus standardi-
sation, Profibus FMS will be integrated in the
European Fieldbus standard EN 50 170.
Profibus DP
This speed-optimised Profibus version (DP =
decentralised periphery) is especially suit-
able for communication between automation
systems and the decentralised peripherals.
Profibus DP is based on DIN 19 245 part 1
and user-specific extensions determined in
the German standardisation draft DIN 19 245
part 3 (published 1993). Along with the Euro-
pean Fieldbus standardisation, Profibus DP
is integrated in the European Fieldbus stand-
ard EN 50 170.
Profibus PA
Profibus PA (PA = process automation) is the
Profibus version for applications in process
automation. Profibus PA uses the intrinsically
safe transmission technology determined in
IEC 61158-2, and enables remote power
supply to the participants via the bus on a
two-wire cable.
Profibus PA enables the connection of sen-
sors and actuators to a common bus cable
(also in hazardous areas).
Instrument profiles determine the instrument-
specific functions.