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How do I read this logic diagram?

2020-10-27View Original

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How do I read this logic diagram? What do the cross-references mean? What do A001.003 and S7, along with 18.3, 18.11, and 20.5, mean?
Reply #22020-10-28
There’s also this diagram; could you explain it in detail?
Reply #32020-10-28
This diagram is incomplete; it’s not clear what S stands for – it seems to refer to signals from other sources. The values provided are reference values only, and there isn’t enough information to understand the logical relationships
Reply #42020-10-28
This diagram is incomplete; it’s not clear what S stands for – it seems to refer to signals from other sources. The values provided are reference values only, and there isn’t enough information to understand the logical relationships
Reply #52020-10-28
Such legend pages contain detailed explanations; just by looking at this single image, one can see the time function blocks, RS function blocks, and so on
Reply #62020-10-28
It can be seen that this is an edge-triggered block, an RS flip-flop, and a delay-activated block; however, I’m not sure what the output of this circuit will be, which makes it a bit confusing for me
Reply #72020-10-28
It can be seen that this is an edge-raising block, an RS flip-flop, and a delayed activation block; the truth table output requires the assistance of other signals
Reply #82020-10-29
Behind it, a TON circuit with an RS flip-flop is used, along with a final AND gate. When the previous value changes from 1 to 0, the output remains at 0 for five seconds; even if the previous value returns to 1, the output will still stay at 0 for those five seconds. The interlock output must remain at 0 for at least five seconds

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