aPLC控制开关量的能力是很强的。所控制的进出点数,少的十几点、几十点,多的可到几百、几千,甚至几万点。由于它能联网,点数几乎不受限制,不管多少点都能控制。 PLC controlling switch quantity ability is very strong.Controls the turnover points, few several, several dozens, many may to several hundred...
甲、乙、丙三条生产线制造同样的产品，其产能比为3∶2∶1，产品的次品率分别为2%、3%和4%。现将三条生产线某日制造的产品混在一起，随机抽取一件进行检验，并发现其为次品。问该件产品由丙生产线制造的可能性是多少？
How manydidthy ps by?A.plceB.placesC.a place 相关知识点: 试题来源: 解析 【解析】答案:B核心短语/词汇:How many多少(提问数量pass by 路过句子译文:他们路过多少地方?解析:此题考查How many的用法。How many多少,提问数量,后面接名词复数形式;而且place“地方”的复数是places。所以答案为B。
I.啄木鸟诊所。(Plcose)/Adon^3(tεI/s)/B(him)/C 1. .)2.HOW⋅many(pcoplcs)/A=(coming)/B(10)/Cdos_(PBC) ()3. (have)/A Let'(have)/A=(sin^2pisinC)/B(pan)((10)/C)himi)4. Please don't tell AB(he)/C()
1. How many plcewomen(policewoman) can you see in the office? 相关知识点: 试题来源: 解析 答案见上 结果一 题目 1. How many poicewomen(policewoman) can you see in the office? 答案 答案见上相关推荐 11. How many poicewomen(policewoman) can you see in the office?
after so many years my costumer ask me to connect one more master to s7-200 plc via profibus. The plc already has one EM277 to communicate to a master and now one more master has to be connect. Of course two masters can not be on the same network so I think the only ...
As you can see, timers are critical in many industries such as manufacturing assembly lines, chemical processing, batch operations such as paint manufacture, and others. In this article, I will describe various timer types and functions, giving examples of each as I go. So strap in, and let...
【简答题】How many types of business letters mentioned in the Teaching video 1?教学视频1中提到了商务信函有几种类型?如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 复制链接 新浪微博 分享QQ 微信扫一扫 微信内点击右上角“…”即可分享 反馈 收藏 举报参考答案: 10 复制 纠错...
Basic PLC operation goes through these steps: Detect the state of input devices connected to the PLC There are two types of data inputs: discrete and analog Discrete Discrete input refers to data when it is in one of two states such as on or off, 1 or 0, open or closed. Examples...
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