SFC Visualization (SFV)
3
Introduction
You can use the "SFC Visualization" software package to configure SFC visualization in
WinCC and to perform operator control and monitoring of SFC charts and SFC instances in
the WinCC runtime system.
What is SFC?
SFC (Sequential Function Chart) is a sequential control system that is used for control flow-
oriented process control.
A sequential control system is a controller with automatic, step-wise execution. It switches from
one state to the next depending on conditions.
Note
In this manual, we generally refer to the SFC charts and SFC instances as SFCs, unless these
objects need to be distinguished in the respective context.
What does the SFC Engineering System offer?
The engineering system allows you to create SFC charts, SFC types and SFC instances,
compile and download them to the CPU, and test and commission them.
In order to be able to use the SFCs in the runtime system, you must transfer them to the runtime
system from the engineering system using the "AS-OS-Engineering" software package. You
can also transfer charts individually. You transfer the SFCs with their OS comments and
configured messages. Mechanisms are stored with the messages that enable you to directly
access the SFC that the message pertains to.
You can also perform the following actions:
● Configure the display of SFCs
● Configure global operator authorizations for the SFCs and specific operator authorizations
for each SFC
● Place objects in the WinCC display for calling the SFCs
You will find more information in the
SFC Sequential Function Chart
Manual in the SIMATIC
STEP 7 User Manual and in the corresponding online help.
What does the Runtime system for SFC offer?
The runtime system enables simultaneous operator control and monitoring of any number of
SFCs.
SFC Visualization (V9.0)
Programming and Operating Manual, 05/2017, A5E41356392-AA 9
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