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
-
一溜到底的SUV车型中，有哪些不错的选择
大家有没有发现，最近汽车的设计开始朝着溜背式发展，特别是这两年，溜背式SUV格外火热。曾经第一辆溜背式SUV宝马X6推出时，很多消费者还认为设计过于怪异，而现在新出的SUV不改个溜…
-
本田大空间面包车 7座两种布局 尾门对开很实用 1.5T动力澎湃
本田汽车可以说知名度非常高，旗下的车型也是丰富至极，其中在国内备受欢迎的两款MPV车型也是如鱼得水，每次销量都创新高，但有一款被誉为最实用的本田大空间面包车，想必大部分车友还未成见…
-
国产特斯拉Model 3起售价略高，很多人可能会去买BBA
今天，特斯拉公司宣布将在中国上海超级工厂生产Model 3标准续航升级版车型，并开放车辆预订，订金2万元，起售价为32.8万元，比该车型进口版便宜4.9万元。 Model 3标准续…
-
超越理想，小鹏IPO单股定价11-13美元，估值达86亿美元
【编者按】造车新势力进入IPO季，小鹏汽车并未缺席。从最新情况来看，其估值高于理想、次于蔚来，这与其头部造车新势力的地位相匹配。不过，上市并非终点，而是开始。对于小鹏汽车而言，挑战…
-
音频 | 蔚来4年亏损400亿是谣言？&82家企业抱团布局自动驾驶
本音频由车动力与心跳FM联合推出，转载请注明出处！ 亏损大、隐忧多，蔚来能否实现触底反弹？ 9月23日，蔚来汽车第二季度财报的公布引来轩然大波。有媒体报道称，自蔚来创立以来，其累计…
-
汽车保养小妙招：生活用品秒变保养用品，让爱车玻璃天天通透如新
导读：汽车保养小妙招：生活用品秒变保养用品，让爱车玻璃天天通透如新。 大家好，又到了跟大家一起聊聊汽车的时间了。每当我们坐在车里面，其实最主要的还是视觉角度，车子视觉角度宽敞，开起…
-
实拍雷克萨斯UX！紧凑级SUV颜值担当？
雷克萨斯UX是雷克萨斯品牌全新的紧凑级SUV，使用TNGA架构打造，平台代号为GA-C，这辆车未来也将取代CT车系成为雷克萨斯品牌最入门的车型，售价区间为26.8-37.1万元，今…
-
2020款福特探险者价格曝光顶配Platinum型号价格近6万美元
【福特探险者】 【佰咖汽车·海外新车资讯】2020款福特探险者是技术含量最高、最先进的一代，其动力系统在一代又一代探险者中也是最令人印象深刻的。福特在今年年初透露这款三排跨界车的起…
评论列表（57条）
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!