Programming A 4 Floor Elevator With Siemens Simatic Step7 And Logo Soft Comfort

US $35.00

Dallas, Texas, United States
Jan 29th

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Product details: programming a 4 floor elevator with SIEMENS SIMATIC STEP7 & LOGO! Soft Comfort Software Author: Seyedreza Fattahzadeh- copyright 2013 Binding:E-book in PDF format would be shipped in a CD ROM Format:: PDF file Numberof pages: 180 ISBN:978-0-9839005-4-2 There is a quotation which was originally stated by Confucius, I would like to present it here as a very practical statement on how the human mind approaches the learning process I hear, and I forget I see, and I remember I do, and I understand --- Confucius (551–479 BCE) Well, by writing small programs to learn how to use the PLC instructions is for the time you are taking an introductory course in a collage to learn how to start programming a PLC to do the exercises , BUT when you are applying for a job as a PLC programmer, the employer will NOT ASK you to write a simple PLC program just to "START", and "STOP" a 3 phase electro motor, on the contrary , he will give you a Project scope and will expect you to read it, understand it , and if you do not have any good question to ask, TO DO IT. We know that a Project Scope or a Functional Specification defines in detail how a system is supposed to operate when it is done completely! I have come up with a solution for those who have the primary knowledge on programming a PLC but need to learn how to take a relatively complex project Scope and turn it into a working PLC control program. The text assumes you have a little background with PLCs- perhaps you have worked with other PLCs from other manufactures or you have helped to install and wire PLCs. Perhaps you are a mechanical or Process Engineer and you need to learn how to program a typical PLC and do some serious control programming similar to ones usually employers will ask electrical techs or Engineers to do in a PLC automation field. In dealing with 4 Floor elevator project, the whole idea is to generate a ladder logic program to control 7 mechanical limit switches to detect the exact location of the car, 10 push-buttons to detect which keypad number is pushed to direct the car to that particular floor, 4 limit switches to control the sliding car door when it is closed or opened, and 4 limit switches to turn alarm when any of the floor door is open accidentally. Hence control ladder logic program has to control total of 25 mechanical limit switches in harmony! + 24 output port terminals to control two DC motors , hoist and car door, 9 LED indicators to display which push-button key is depressed, 3 outputs to display which floor # is the car parked at, 2 flicking LEDs to show direction of the car, 2 LED indicators to control car's inside lighting and alarm, and finally 1 trigger signal output to activate home made announcing system when the car is reached to the destination floor. Total of 21 outputs!. All these input / outputs must be controlled by the PLC in order the system to function right. I assume he who can come up with a solution for this project, can do any other project which is even much more complex than this EASILY!. Generating a ladder logic program for this project requires you to know what you are doing other wise, it would not work. You have to make use of basic function blocks such as, flags, latches, timers, counters etc. The text comes with full explanation of each step of programming and full schematics of circuits of the PLC and I/O modules wiring diagrams as well. In PLC programming business, you have to have a complete self confidence on yourself that "you can do it" when applying for a job. You can only emit that self confidence when you believe in yourself truly, BUT how can you achieve that self confidence? By defending your programming knowledge not just by talking, BUT by proving it. You must show your future employer that you can handle the job of writing at least a fairly complex program in few hours. That knowledge can not be achieved unless you had done a few successful projects already. You can go out and order a hardware such as my well designed elevator hardware from some company located in CHINA for some thousands of dollars and develop a program for that OR you can purchase my e-Book and just use a typical simulator software and write your own program, simulate it and then compare it with my solution and LEARN! Your learning process will start as soon as you even start reading the problem specification. And then in your resume, you can add the sentence " I am looking for an entry level job in programming PLCs and the most complex program I did, was to write a control program for a "4 floor elevator with SIMENS SIMATIC S7-300 & LOGO!....which it worked according to its predefined hardware specification.". And watch your employer's face and reaction when he is reading your RESUME… Project Scope Goal of this project is to design and implement a control program to operate a 4 floor elevator system with all input and outputs mentioned. Overview Each floor is to have its own illuminated push-button to call the elevator to a demanded floor. The elevator door is to be emulated with the use of a 3 V DC motor that opens, and stays open, and reverses after few seconds at each floor after being called. Nowadays, HMIs, 3 phase motors, and AC motor inverters have lot's of application in PLC automation industry. In chapter 3, I thought maybe it was not a bad idea to add those elements to my project and re-write the whole control program to include them in the system. So I replaced the DC motor with a small 3 phase moto with a gear box. To change the direction of the motor from CW to CCW or vice versa, I used an AC motor inverter to my system to let me 1- To get the 3 phase motor to operate from 1 phase power supply 2- to change the motor direction to either CW or CCW under PLC's control software. Bunch of figures in the text show how to do it. Studding the text further, show you how finally previous hoist motor is replaced with a 3 phase motor. Human Machine Interfaces (HMI) are devices that let operators to check present condition of the operating machine, and if needed, impose new setting in the operation of the machine at hand. In chapter 4, I selected a typical PanelMaster HMI device to add to the elevator system. Chapter 4 explains how to connect the device to a typical PC to generate the screen program to show the mechanical operation of the elevator and the status of the limit switches and floor numbers and such. Just by checking the explanation of the demo program and usage of the PM Designer software (included in the CD ROM) you can learn how to add a typical HMI device to your own projects. Lot's of document and explanation about The DELTA's typical AC motor Inverter show you how to implement that device and use it in your projects and develop the required control PLC program. Beside the development of the two full control programs for two different models of Siemens PLCs, I also designed few other hardware circuits for the structure of the Elevator system. These extra hardware designs were: 1x Cabin display PCBs used to display stop floor numbers + 6 push-buttons 4 x floor display PCBs used to display each floor number + 1 key push button Hoist motor and cabin sliding door drivers Design of a voltage level shift circuit to interface TTL logic gates to 24 V DC coming from PLC Interfacing a home made elevator floor announcing circuit to PLC Full schematics of all hardware used is included in the book including the mechanical wiring of the PLCs and their related modules. Control FBD / LDA software developed for LOGO! has consisted over 100 blocks whit full explanation of the instructions used to do different tasks in whole program. Full explanation of the solution program in about 20 pages of the text. Control LDA / STL software developed for S7-300 has consisted over 140 networks with full explanation of the instruction used to do different tasks in whole program. Full explanation of the solution program in about 60 pages of the text. Topics covered in the text are: Chapter 1 Presentation of the 4 floor Elevator with LOGO! software Comfort V. 7.0, Binary-coded decimal, Cabin display and Keypad hardware , Cabin sliding door dc motor controller schematic, Cabin lift dc motor controller , Project description, List of Equipments ,Main power supply circuit , Control hardware circuit, List of input / output and flags ,LOGO! Software Program. Chapter 2 voltage divider circuit, installing an elevator floor announcing , The schematic of all other hardware used in this project is given: keyboard pad, DC motor controller .etc. if you wish, you can even build your own elevator hardware similar to ours or even tailor it to the one with more features you like. You can learn to master your programming knowledge just by simulating yours and checking out its performance and comparing it against my solution. This way you can improve your programming knowledge! And if you stuck at any step, you can check out my solution against yours and use the explanation to understand the reasoning behind Chapter 3 Connecting an HMI & AC motor drive to the PLC, and Explanation of the solution program. Chapter 4 What is a "Human Machine Interface (HMI)" device? ,How to setup and connect a PanelMaster LCD (HMI) to the PLC ,A practical example of controlling a 3phase motor with a PLC, Developing our first control program for the HMI device ,Developing an "HMI" screen program for the elevator project. Chapter 5 Variable frequency drivers (VFD), A little back ground on 3 phase motors and AC motor drivers,Relation between synchronous & rotor speed and the slip, Setting parameters of a typical AC motor driver .Questions and answers related to this project. Concerned about the content quality of my books, check my feedbacks received from my happy Ebay customers. I have been developing and selling these books since year 2000 Feedback issue Placing Feedback is a system within Ebay to help buyers and sellers alike. We encourage feedback & detailed sellers ratings. When you receive your item, please check it completely and if you have any comment or concern, and when you are happy with your purchase, please take a time and leave feedback and detailed sellers ratings. Once I can receive your positive feedback, I am pleased to do the same for you. Advantages of Ebooks 1- This Educational Ebook would be shipped in a CD ROM to your address and of course at less than half price of print ersion. So since it comes in a CD ROM, shipping charge would be much less than regular price. 2- Ebook readers have the ability to enlarge fonts past standard large print size. 3- Production of Ebooks do not consume paper ,ink, etc but you can print any of pages of the book with your own printer. Please Note that this Ebook is in PDF format hence once your payment is made, the PDF file will be shipped to your PAYPAL account address unless noted on the PAYPAL invoice/payment otherwise Shipping: I am using Kunaki cd / dvd manufacturing / publishing and shipping company to fulfill and ship my sold items to buyers around the world and this company does not provide service to some Asian and African countries. Please check with me ahead of time if you would like to purchase any of my products to be shipped to your address located in any of those two continents. Upon shipment of your item, you will be provided with tracking number (if it is shipped to states inside US) for other countries , only Order number, shipping status, shipped to address and shipped on date info via air mail, is going to be provided. If for some unknown reason, your item is stuck in your country's customs office, or lost, I shall not be held responsible. It will take about 7-10 business days for USA, up to 12 for most other Countries. please note that this auction is only for an Ebook in PDF format + two control ladder logic programs developed for the project for SIEMENS SIMATIC S7-300, and LOGO! PLCs and some PDF documents for the application of PanelMaster HMI and DELTA's AC Motor controler, which will be shipped in a CD ROM. It does not include any other software or anything ELSE. Please ask any question you have before you BID Thanks for checking and have a good luck Please be informed I do have total of 9 titles related to programming PLCs or design and implementation of industrial projects as following: PLC programming e-Texts: 1- Introduction to programming Allen-Bradley series of PLCs (second edition) Binding: E-book/PDF file Number of pages: 226 2- Programming with SIMATIC S7 300/400 Programmable Controllers Binding: E-book/PDF File Number of pages:374 3- Programming SIEMENS SIMATIC S7-200 PLCs using Step7-Micro/Win software Binding: PDF/PDF File Numberof pages: 250 4-Introduction to programming a SIEMENS LOGO PLC Binding:E-book/PDF file Number of pages: 205 Design and implementation of industrial projects: 5- Programming a 4 floor elevator with SIEMENS SIMATIC STEP7 & LOGO! Soft Comfort Software Binding:E-book/PDF file Number of pages: 130 6- Programming SIEMENS LOGO PLC as a dyeing machine temperature controller. (Circuits and programs for SIEMENS LOGO, LOGO TD, and a typical analog transmitter) Binding: E-book/PDF file Number of pages: 70 7-Implementing an Automated Parking System using a PLC Binding: E-book /PDF file Number of pages: 116 8-implementing a PLC-based temperature controller with PID algorithm Binding: E-book/PDF file Number of pages: 122 9-Programming a Traffic Light Control System using SIMATIC S7-300 PLC WinCC and HMI displays Binding: E-book /PDF file Number of pages: 160

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Controller Platform

S7/300