Tag
#pid
2 topics across all disciplines.
Reading a P&ID — the drawing every discipline works from
How a P&ID differs from a PFD, decoding instrument tags and bubbles, following a control loop across the sheet, and the details that decide what gets built.
Control loops and PID — what the three terms actually do
How a feedback loop works, what proportional, integral and derivative each respond to, why controller action is the error that breaks loops completely, and how to tell a tuning problem from a valve problem.