Interlock control system
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As shown in the figure, could someone help explain the interlocking logic relationship? What do S, R, Q, and what mean? There are explanations on the forum, but they are quite technical and not easy to understand. Could everyone please explain them in simpler terms, using the examples shown in the diagrams? :P
I’m not involved in this; I suggest checking the design documents, which are available in this resource room. A meter technician should have it. The values indicated by each developer may vary, so it’s best to follow the original instructions.
If you don’t even know basic logical operations like triggers, how can you be in the third grade of elementary school? Even if they’re not majoring in control, engineering students basically have to learn digital logic, right?
This post was last edited by myface on 2018-5-3 09:15. S: Set; R: Reset; Q: Output. And: AND. That’s all I can explain here; it would be pointless to copy out a long passage. It is recommended that the original poster read a basic book on PLC configuration, as these symbols are the same everywhere. If there’s really something you don’t understand, mention the specific points that are unclear to you. Everyone on the forum is very helpful; otherwise, if you ask questions in such a general way, and moreover basic ones, how can they answer them?
It seems there’s something wrong with the reset of this SR flip-flop
Is this the operation interface? Was even the control principle shown to the operators?
Once any of the conditions for shutdown due to pressure, temperature, or liquid level is met, the corresponding action will be carried out; to return to normal operation, a reset confirmation is required.
Stop beating around the bush; get to the point if you have a question. I’m a beginner too
If you don’t even understand the most basic things, learn on your own instead of taking tutoring; otherwise, it’s better not to work in this field