관도와 펌프 �流程图中怎么表示控制？PID图中有没有PLC？
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신bie一枚明明是学机械的但是毕设要画PID图不用特别规范的那种。图中的设备都已经找到图例了但是不会画各种仪表也不会画表示通过仪表控制设备的图例如我想用温度传感器接收信号传输给PLC然后通过PLC控制阀门开关量这种控制该怎么画呢？求大佬们搭救！
나가 질문한 게시판이 틀나가了吗是我提问的版面不对吗？
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