Stage 8 · Ask for evidence · 6 min
Separate request from evidence
I can allow valve travel time and alarm on missing feedback.
1. Why it matters
A drinks mixer can tell an ingredient valve to open while the valve stays stuck shut. If nothing checks, the batch is made without that ingredient.
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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