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bg9.png By replying, you can see the answers to the previous session. (Multiple-choice question) When selecting the I/O components of a programmable controller, one must consider ( ). A System scale； Requirements for parameter B ； C Signal Types ； System requirements for D. The answer is B\C\D. The question for this issue is as follows: (Single-choice question) A control system uses a proportional-integral controller, and someone employs a trial-and-error method starting with proportionality and then adding integration to tune the parameters of the controller. If the value of the proportionality is already fairly appropriate, then when integrating this effect, ( ) A. the proportionality should be reduced appropriately; B. the proportionality should be increased appropriately; C. there is no need to change the proportionality; D. it cannot be determined. —————————————————————————————————————————————————————————————— Scoring criteria: 2 Wealth for an incorrect answer; 3–6 points for an *incomplete* correct answer; 8 Wealth for a correct answer accompanied by a detailed explanation; 10–15 Wealth for a correct answer with additional *complementary* explanations. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings