PROFIBUS Communication modules
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SIPROTEC PROFIBUS-DP - Communication profile
C53000-L1840-B001-03
1.1 Communication module types and hardware revisions
1.1.1 Communication module types
Two communication modules are available for the connection of PROFIBUS-DP to the
SIPROTEC devices:
RS485
bus interface
PROFIBUS module with isolated RS485 interface.
This module also is called PSE module (Communication module PROFIBUS slave
electrical) subsequently.
Fibre-optical
bus interface
PROFIBUS module with fibre-optical interface.
An OLM (Optical link module) for electrical to optical conversion of PROFIBUS signals
is integrated on this communication module and two optical channels (each with Send
and Receive) are utilizable.
It is possible to build up PROFIBUS nets in a redundant optical ring topology with that.
This module also is called PSO module (Communication module PROFIBUS slave
fibre-optical) subsequently.
Technical data The technical data of the above-mentioned PROFIBUS communication modules are
summarized in chap. 5.
1.1.2 Hardware revisions
There exist two different hardware revisions for PROFIBUS communication modules:
• up to HW revision 3:
delivery up to the beginning of year 2004
• from HW revision 4:
replacement for modules up to HW revision 3, delivery from beginning of 2004
The communication modules from HW revision 4 are function compatible to the mod-
ules up to HW revision 3.
Please note the dependency of the PROFIBUS-DP firmware versions with the HW
revisions described in chap. 1.1.3.
The hardware revision of the PROFIBUS communication modules is also recogniz-
able in build-in condition at the rear of the SIPROTEC device at the labelling of the
communication module mounting bracket:
• up to HW revision 3: identification “P-Slave”
• from HW revision 4: identification “Profibus”
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