Burkert 6520 NAMUR Instructions De Service page 22

• Remote supply and data transmission in dual conductor technology with
PROFIBUS-PA
• Use of PROFIBUS-PA within areas with explosion risk in explosion
protection class Intrinsic Safety by the use of transmission techniques
according to
IEC 1158-2
• Simple linking of the PROFIBUS-DP and PROFIBUS-PA bus segments
using segment coupler
In the same way as for the use outside areas with explosion risk, the PROFI-
BUS-PA can also be used within the Ex area with protection class Intrinsically
Safe.
The design of non-intrinsically safe and intrinsically safe installations is carried
out according to the same open concept. Field devices can be combined
together to form different topologies ,and are completely supplied via the bus.
The devices can also be operated while in operation, and be connected or
disconnected within the potentially-explosive area [1].
EN 50170 Volume 2 and DIN 19245 Parts 1 to 4
General
Automation
PROFIBUS-FMS
universal
- wide application range
- Multi-Master communication
Fig. 1: PROFIBUS family [1]
[1] PNO company: Commissioning Handbook for PROFIBUS-PA, Version 1.1 of
22.09.1996
Operating instructions no. 800 608
Manufacturing
Automation
PROFIBUS-DP
fast
- plug and play
- efficient and economical
Process
Automation
PROFIBUS-PA
branch-oriented
- bus supply
- intrinsically safe
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