“Create an SFC for a clean-in-place cycle: start from a ready step, then pre-rinse, caustic wash, final rinse, and complete, advancing on RinseDone, WashDone, and FinalRinseDone signals.”
Read the decisions behind it.
Keep the cycle in a ready step until an operator starts it.
Give rinse and wash actions their own steps for clear operator review.
Use a final complete step so downstream equipment can see the cycle finished.
Use this pattern for a single-vessel CIP cycle when each phase has a dependable completion signal.
Other examples in this family.
Common questions
What is a CIP SFC?
It is a sequential function chart that shows the ordered cleaning steps, their actions and the conditions that move the cycle forward.
What signals should advance a CIP cycle?
Use measured or verified conditions such as elapsed wash time, conductivity, temperature, flow confirmation or a tank-level signal.
Can a CIP chart include safety interlocks?
Yes. Describe the permissives and interlocks so they can be represented as transition conditions or actions.