Catalog ST PCS 7.1 - September 2005

■ Overview
SIMIT is a powerful simulation platform which is integrated into
the SIMATIC PCS 7 engineering by means of open interfaces,
but which remains open for functional expansions as a result of
its modular design. You do not need to be a specialist to generate
and apply simulations with SIMIT. It is merely necessary to
use SIMIT’s graphic desktop – all mathematical and IT procedures
of a simulation are carried out invisibly by SIMIT in the
background.
As a test platform for SIMATIC user software, SIMIT provides a
high scope of performance: it can be used on the one hand to
automatically configure signal tests, or also to simulate processes
and complete plants of any complexity in real-time.
SIMIT provides the appropriate simulation environment whether
you are interested in a simple key-triggered PLC signal test, testing
of the field level, physical simulation of the process response
for a complete plant test, or for operator training.
SIMIT is designed such that its functionality and scope can be
specifically adapted to individual requirements. The basic system
already provides powerful simulation functions. Hardware
and software modules can be used to specifically expand the
SIMIT functionalities.
Simulation is supported by appropriate automated functions. For
example, importing of the symbol table or a list of signal names
generated using Excel is sufficient for automatic configuration of
the signal links. The associated control and display elements are
also generated automatically. Sample solutions created using
the PCS 7 Import/Export Assistant (IEA) can be imported into
SIMIT to generate equivalent simulation patterns.
■ Function
A simulation model is produced with SIMIT simply by "plugging
together" individual components. These components are selected
from a library, positioned on a chart, connected together,
and parameterized.
Simulation
SIMIT: Simulation-based engineering
Engineering on the PC with SIMIT
The SIMATIC user program generated in SIMATIC PCS 7 is
loaded into the PLC simulation S7-PLCSIM, and receives the
simulated I/O signals from SIMIT via the PLCSIM coupling. The
interface is configured automatically in SIMIT by importing the
symbol table from SIMATIC PCS 7. SIMIT can also generate the
corresponding simulation environment automatically using the
PCS 7 Import/Export Assistant (IEA). Simulation examples
matched to example automation solutions are used for this. The
complete interaction between automation and process (model)
is completed by means of a process model.
If the PCS 7 operator station (WinCC) is coupled to PLCSIM, the
complete automation function from the sensor to the automation
and visualization systems and back again to the actuator can already
be tested on the PCS 7 engineering system in the technical
office without the actual existence of the automation hardware.
PCS 7 engineering PCS 7 HMI
Signals
Hardware
configuration
SIMIT
Devices (IEA)
Actuators
& sensors
Process
User
software
Siemens ST PCS 7.1 · September 2005
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