本章用到的软件是博途15.1，根据实物与指令的结合讲解，PLC选择S7-1200
简单指令：
1、常开触点
PLC中的常开触点对应按钮的常开触点
2、常闭触点
PLC中的常闭触点对应按钮的常闭触点
3、线圈
PLC中的线圈对应接触器及中间继电器的线圈
现有三台电机，要求按顺序启动，逆序停止
第一台电机启动后，第二台电机才能启动，第二台电机启动后第三台电机才能启动。第一台没启动的话，第二台也启动不了。一定是按顺序的。
逆序停止时当三台电机全部启动后，按照逆序停止电机，也就是说第三台电机停止后第二台电机才能停止，第二台电机停止后第一台电机才能停止。
首先画出主回路（简单的画一下，没加热保护，有的断路器是自带保护的）
不用PLC的控制回路
I/O表
程序图
说明
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/65747.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
为什么挡风玻璃被砸保险公司不赔偿？就因为你说了一个“是”字
大家都知道平时我们开车在路上，难免会发生磕磕碰碰，最常见的问题莫过于发生汽车追尾和汽车剐蹭，这些都比较容易解决，买了保险，如果遇到这些问题，保险都可以很快搞定，但是有一种情况要当心…
-
中国明日之星100企业榜单及报告发布丨WIM2019世界创新者年会
在经历了全球性的金融危机之后，尽管2016年至2018年期间全球经济略有复苏，但仍呈现普遍放缓的态势。受全球经济疲软的影响，全球范围内投融资情况也不甚乐观，全球投融资金额和笔数的收…
-
华为朋友圈再壮大，联合18家车企成立“5G汽车生态圈”
作者丨程天琦 编辑丨何奇 永不“造车”的华为，车企朋友越来越多了。 4月24日，根据华为官方信息显示，华为联合一汽红旗、一汽奔腾、一汽解放、上汽乘用车、上汽通用五菱、广汽新能源、比…
-
9月起，全国严查这7种驾驶行为，随便一个就是扣6分罚200块_交通
如今道路上违章摄像头随处可见，平时开车在路上，最怕的是一不小心就违章了，加上“海燕系统”的实行，连老司机们都慌了。一本驾驶证总共就12分，一不留神就全没了，你说惊喜不惊喜，意外不意…
-
特斯拉全系车型免购置税 最高可免9万多_特斯拉汽车,新能源汽车,新能源,伊隆·马斯克,能源,MODEL X,进口车,上海
“ 【太平洋汽车网 新车频道】从工信部门得到最新消息，特斯拉国内在售的全系车型均已进入最新一期《免征车辆购置税的新能源汽车车型目录》，简而言之就是新购买的特斯拉全系车型…
-
巴适的很！威马EX5智行2.0版智能辅助驾驶体验
几天体验发现，威马EX5智行2.0版的Living Pilot虽有不足，比如过程中加速和制动比较急，过多的方向修正等，但整体表现已经非常不错。硬件方案和软件算法也没有因恶劣天气（大…
-
增程式动力，800km续航，32.8万元的理想ONE购车、养车成本如何？
30多万购买7座SUV，很多人会将丰田汉兰达作为第一选项，但是对于身处限牌城市的消费者来说，新能源绿牌也成为了限制他们购车的重要因素。30多万的预算购买新能源7座SUV的话，降低预…
-
4月SUV：自主疲软集体下滑 GLC入榜显高档强势
4月，国内SUV共销售642220辆，环比下降15.6%，同比下降14.7%，从而拖累SUV车型1-4月累计增速降至-12.5%。同时，入门市场“弱”、高档品牌“强”的分化走势…
评论列表（58条）
You’ve opened my eyes to new perspectives. Thank you for the enlightenment!
Discovering The Writing felt like finding the perfect match. The intellect and charm are a rare combo.
Charlotte Dog Park never fails to impress me with its spacious layout and all the happy dogs running around.
The post was a beacon of knowledge. Thanks for casting light on this subject for me.
Thanks for the hard work. I could almost see the sweat on the keyboard. Much appreciated!
This Writing is a treasure trove of knowledge. Thank you for The contributions!
The way you break down ideas is like a chef explaining a recipe, making hard to understand dishes seem simple.
Discovering The Writing has been a game-changer for me. The contributions are invaluable.
The work is both informative and thought-provoking. I’m really impressed by the high quality of The content.
I admire the way you tackled this hard to understand issue. Very enlightening!
The Writing is a constant source of inspiration and knowledge. Thank you!
The commitment to high quality content really shows. I’m always excited to read The work.
The attention to detail is remarkable, like a detective at a crime scene, but for words.
The elegance of The arguments is as captivating as a sunset. I could admire it all day.
A masterpiece of writing—you’ve covered all bases with such finesse, I’m left wanting an encore.
The post touched on things that resonate with me personally. Thank you for putting it into words.
A go-to resource, like a library but without the late fees.
The piece was both informative and thought-provoking. Thanks for the great work!
Bookmarking this! The practical advice is something I’ll definitely be coming back to.
The insights are as invigorating as a morning run, sparking new energy in my thoughts.
You’ve opened my eyes to new perspectives. Thank you for the enlightenment!
Opened my eyes to new perspectives, and here I was thinking I’d seen it all.
The elegance of The prose is like a fine dance, each word stepping gracefully to the next.
The post was a beacon of knowledge. Thank you for illuminating this subject.
The ability to present nuanced ideas so clearly is something I truly respect.
Engaging with The work is as thrilling as a spontaneous road trip. Where to next?
You have a knack for presenting hard to understand topics in an engaging way. Kudos to you!
Thanks for the hard work. I could almost see the sweat on the keyboard. Much appreciated!
Making hard to understand concepts readable is no small feat. It’s like you know exactly how to tickle my brain.
The breadth of The knowledge is amazing. Thanks for sharing The insights with us.
Engaging with The content is like embarking on a treasure hunt, where knowledge is the prize.
Thoroughly insightful read, or so I thought until I realized it was The expertise shining through. Thanks for making me feel like a novice again!
I’m bookmarking this for future reference. The advice is spot on!
The voice shines through The writing like a beacon, guiding us through the darkness of ignorance.
This post has been incredibly helpful to me. The guidance is something I’m truly grateful for.
Genuinely impressed by The analysis. I was starting to think depth had gone out of style. Kudos for proving me wrong!
You’ve presented a hard to understand topic in a clear and engaging way. Bravo!
I appreciate the balance and fairness in The writing. Great job!
Thank you for the hard work you put into this post. It’s much appreciated!
I was truly impressed by how deeply you delved into this topic. The hard work hasn’t gone unnoticed!
The dedication to high quality content shows. It’s like you actually care or something.
The analysis made me think about the topic in a new way. Thanks for the insightful read.
The attention to detail is remarkable. I appreciate the thoroughness of The post.
The piece was both informative and thought-provoking. Thanks for the great work!
The words are like a melody, each post a new verse in a song I never want to end.
You have a unique perspective that I find incredibly valuable. Thank you for sharing.
Thank you for adding value to the conversation with your insights.
Your insights have added a lot of value to my understanding. Thanks for sharing.
Incredibly informative post! I learned a lot and look forward to more.
Thoughtful analysis that made me think, which is quite the feat these days.
The insights are like a sunrise, bringing light and warmth to new ideas.
I’m so glad I stumbled upon this article. It was exactly what I needed to enjoy reading!
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your blog is a constant source of inspiration and knowledge. Thank you!
This post is a testament to your expertise and hard work. Thank you!
This post is a testament to your expertise and hard work. Thank you!
This post was a breath of fresh air. Thank you for your unique insights!
This article was a delightful enjoy reading. Your passion is clearly visible!