Specifications

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28 PHOENIX CONTACT
Bro_Safety_Info_DE_Rev01.indd 24-25Bro_Safety_Info_DE_Rev01.indd 24-25
Profisafe –
Safe I/O modules for the
control cabinet
Depending on the bus coupler used, the
Profisafe modules of the Inline installation
system can be operated on Profibus-DP and
Profinet solutions so that these networks,
too, profit from the advantages of the safe
Inline modules. Within the Profisafe system,
safety functions with the following
requirements can be realized this way:
• Up to category 4 according to EN 954-1
• Up to SIL 3 in accordance with EN 61508
and EN IEC 62061
• Up to PL e in accordance with
EN ISO 13849-1.
An Inline station can be made up of safe and
standard modules here, whereby a variety of
function terminals are available to the user.
The station is configured with fine granularity
with digital and analog inputs or outputs.
Black channel mechanism
In order to be able to transmit safe and standard data via a
bus cable, the Profisafe protocol is exchanged between the
safe control system and the safe I/O components via a "black
channel". Here, the safety telegrams with their independent
safety mechanisms are embedded in a standard telegram of
the Profinet system and are only unpacked in the respective
safety terminal.
Safety
application
Standard
application
Standard
application
Safety
application
PROFIsafe
layer with
V1 mode or
V2 mode
"Black
Channel"
PROFIsafe
layer
PROFIsafe
layer
Communi-
cation
protocol
Communi-
cation
protocol
1:1 communication relationship
PROFINET IO, PROFIBUS DP, backplane buses
EN_DE_neu_Safety_9+28-29.fm Seite 2 Montag, 2. Juni 2008 3:00 15
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