User's Manual

Engineering system
Engineering Process Safety
Introduction
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Siemens ST PCS 7 · November 2007
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■ Benefits
Safety Integrated for Process Automation permits complete inte-
gration of safety engineering into the SIMATIC PCS 7 process
control system. The Basic Process Control System (BPCS) and
Safety Instrumented System (SIS) melt together into a uniform
and innovative complete system. The advantages of this fusion
are quite clear:
• One common controller platform
• One common engineering system
• No separate safety bus - standard and safety-related commu-
nication take place on the same fieldbus (PROFIBUS with
PROFIsafe)
• Mixed operation of standard and safety-related I/O modules in
ET 200M and ET 200S remote I/O stations
• Uniform data management - no complex data exchange be-
tween BPCS and safety system
• Integration of safety-related applications into process visual-
ization on the operator station
• Automatic integration of safety-related fault messages with
time tagging into the process control system
• Integration of safety-related hardware into the SIMATIC PCS 7
asset management for diagnostics and preventive mainte-
nance
The SIMATIC PCS 7 engineering system is a universal tool
equally suitable for BPCS and safety applications.
Using the S7 F Systems engineering tool, you can parameterize
the AS 414F/FH and AS 417F/FH automation systems as well as
the safety-related F-modules of the ET 200M and ET 200S I/O
systems.
Using Continuous Function Chart (CFC) and predefined function
blocks from the F-block library of S7 F Systems, you can config-
ure safety-related applications simply, efficiently and without
weary acquaintance.
However, this is even simpler, more convenient and faster using
the SIMATIC Safety Matrix based on CFC. The configuration tool
functioning according to the principle of a Cause&Effect matrix
automatically creates complex safety programs once you have
assigned the events (causes) occurring during a process to ex-
actly defined reactions (effects).
© Siemens AG 2007