PLC 110 · PLC Control I
Session 1 · Hour 1 · The scan is the law
Instructor cue 코일은 오른쪽에 앉는다.
90 minNow Open · 5 min left · next Demo
I show · you follow · check
The lecturer shows once. You copy the same move next.
The scan is the law
The screw is not the snapshot. Read. Run. Write.
Name the three beats of a scan
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Read inputs. Run the ladder. Write outputs.
Image memory is the snapshot, not the screw.
Top to bottom. Left to right. Coil on the right.
One Y. One coil. Two homes is a lie.
Kill power. Then pull a module.
Name X and Y before a wire.
CheckPoint at power, CPU, in, out, memory. Walk a scan. Find a double coil and give it one home. A live module swap is a bite. Two coils on Y20 is a lie.