Sequential Function Chart

With the graphical SFC (Sequential Function Chart) programming language, complex control sequences can be modeled intuitively and clearly – ideal for time-controlled and event-controlled processes.

For production recipes, machine state machines or process-controlled sequences:
SFC makes control logic visible, maintainable and scalable.

SFC maps control sequences as a chain of steps and transitions. The visual representation enables:

Simple project configuration and commissioning
Clear figure of state changes and production recipes
Offline and online display for seamless integration in engineering and diagnostics

SFC precisely controls CFC functions of basic automation:

Selective activation of operating states in individual steps; Recipe-driven processes: Define manufacturing instructions as event-based processes
Real-time monitoring in online mode for efficient debugging, SFCViewer and PAL module, Real-time monitoring in online mode for efficient debugging

With the SFCViewer and special PAL blocks, you can intervene manually in the sequence of your controller at any time. This allows you to enable, skip or reset individual steps – directly during operation and without any programming effort.

The integrated transition diagnosis enables a quick and targeted analysis of all transition conditions (transitions) within the sequential control. This allows the causes of process delays or unexpected process interruptions to be identified and corrected immediately.

The combination of additional step list and tracking view that can be switched on ensures an optimum overview of the entire process sequence.

The step list clearly shows all current and upcoming steps, while the tracking view displays the process in real time. This allows you to maintain a complete overview at all times – even with complex control sequences.