Siemens SINUMERIK 840D sl Function Manual page 199

05.08
S DP master, class 2 (DPMC2):
Devices for configuration, commissioning, operator control and monitoring
during bus operation.
Examples: Programming units, operator control and visualization devices
2. Slaves (passive devices)
These devices may only receive, acknowledge and transfer messages to a
master when so requested.
Examples: Drives, I/O modules etc.
PROFIsafe
For PROFIsafe, it involves a PROFIBUS profile for fail–safe data transfer between
fail–safe components (F master and F slave) along PROFIBUS DP.
The PROFIsafe profile is characterized by the fact that the safety–related functions
are implemented in the safe terminal nodes, i.e. the F/CPUs, the distributed slaves
and the actuators/sensors/field devices using the standard PROFIBUS functions.
The useful (net) data of the safety function plus the safety measures are sent in a
standard data telegram. This does not require any additional hardware compo-
nents, since the protocol chips, drivers, repeaters, cables can still be used as they
are. This means that both standard components and F components can be used
on a PROFIBUS system.
SINUMERIK Safety Integrated supports PROFIsafe V1.
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
Connecting Sensors/Actuators
7.2 Connecting I/O via PROFIsafe
7-199