Codesys Sfc Example Apr 2026

The SFC's showed:

The SFC was in with a coil halfway submerged.

But then... nothing.

This is how industrial programmers think. Not just "code that runs"—but .

The Pickle Paradox System: Industrial Pickling Line (Acid Bath for Steel Coils) Controller: CODESYS SoftPLC v3.5 SP20 Part 1: The Problem Engineer Lena Vasquez stared at the production log. Line 7, the steel coil pickling line, had just scrapped its third $40,000 coil of the week. The sequence: Load coil → Dip in HCl acid → Rinse → Dry → Unload . codesys sfc example

At 3:47 PM, a bearing seized on the acid bath agitator. The temperature spiked to 110°C. Acid_Temp > 95C triggered a pre-programmed fault.

In CODESYS SFC, she right-clicked Step 20 and selected . She created an Action named Acid_Emergency . She set its qualifier to N (Non-Stored, executes while step is active) and S (Set/Stored for emergency). The SFC's showed: The SFC was in with

She slammed her fist on the desk.

Lena needed an .