Stage 20 · Reuse tested control logic · 8 min
One definition, separate instances
I can run two instances of one block and prove their memory stays independent.
1. Why it matters
Two pumps need the same tested Start and Stop rules. Each needs its own memory, so pressing one pump’s button never changes the other.
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- The idea in plain words
- See it happen, scan by scan, in Siemens and Rockwell
- Vendor notes
- On site
- Try it on the rig
- Check your understanding