How to Program a Siemens S7-300 Programmable Logic Controller

Do you have a Siemens S7-300 Programmable Logic Controller that you are not familiar with but you need to program it NOW! Following is a quick set of instructions I have put together to help you get started programming a Siemens S7-300 PLC.

After loading the programming software and connecting a Siemens MPI cable between your programming computer and the PLC, open SIMATIC Manager by clicking the icon on the desktop. The STEP 7 Wizard: "New Project" window will open. It is easier to use the Wizard to setup communications with your PLC, but I chose to take the scenic route. I figured I would learn more this way. So, close the STEP 7 Wizard window by clicking Cancel. If there are any other windows or projects open, close them. We want to start with a totally new program.

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Create a new project by clicking the new project button on the toolbar in the upper left corner of your screen.

How to Program a Siemens S7-300 Programmable Logic Controller

The New Project window opens. Here you will see any existing programs located on your computer. Near the bottom of the window, you will see the Name: input form. Type whatever you want to name your new project and click OK.

A new window will open showing the name of your project at the top. You will also see your project in the window on the left hand side of the screen at the top. Right click your project and choose "Insert New Object". Choose the device you will be programming. We will be using the SIMATIC 300 Station so choose that selection.

You will now see SIMATIC 300 appear in the right window of your screen. It should be highlighted blue. Click anywhere in the window to make the blue go away. Double click SIMATIC 300 and it will move to the left window and "Hardware" will appear in the right window.

Double click "Hardware" and two (maybe three) new windows will open. On the left will be SIMATIC 300 - (the name of your project). The window on the right will be the catalog of parts.

Look in the right window, the parts catalog, and click the plus sign beside SIMATIC 300.

Click the plus sign beside RACK - 300. Click and drag the Rail onto the left window. You will now see the Slots window appear. This is where we will place our PLC components.

We will first choose our CPU. Looking at the parts catalog, in the SIMATIC 300 tree, choose the CPU that you are using. We are using the CPU - 300 so click the plus sign beside that choice.

Now look at the front top left of your PLC. This is where you will find the PLC model. I will use CPU313C-2 DP as an example since this is the model PLC that I use.

Find this CPU in your parts catalog and click the plus sign. You will now see some part numbers.

Look back at your PLC. Locate the door covering the MPI port. This will be the bottom left side of the PLC. At the bottom of the door you will find the part number. The part number for the PLC I am using as an example is 313-6CF03-0AB0.

Find this part number in the parts catalog. You will notice this is another folder. Open it and you will see V2.0 and V2.6. Look back at the PLC, open the door covering the MPI port, and right above the MPI port you will see V2.6.3.

Go back to the parts catalog and click V2.6. Notice how a slot in the left hand window will highlight green. I believe it will be slot #2. (Slot #1 is reserved for power supplies.) This is where you will drag and drop your CPU. (Notice the software will not let you put the CPU in any other slot but slot #2.)

When you release the mouse button over slot #2, a new window will open, "Properties - PROFIBUS interface". Click new, a new window opens, click Ok, and then click OK again. We are not setting up a network at this time.

You will now see your CPU and associated hardware listed.

Double click in the Slot that list your DI16/DO16 (Digital Input/Digital Output).

A window with three tabs will open. The first tab will be General, the second tab will be Addresses and the third tab will be Inputs.

Open the tab "Addresses". We need to change the default addresses. Do this by unchecking the System Default button and changing 124 (or whatever address you have) to 0. Do this for both the Inputs and Outputs.

We now need to change the Node Address. Go back to the window where you double clicked DI16/DO16 and double click in Slot 2, the CPU 313-2DP slot.

The Properties - CPU 313C-2DP window will open.

Look down the window a little over half way and find the Interface area and click on Properties. Another window, "Properties - MPI interface CPU 313-2DP" will open.
Change the address to meet your specific criteria. I know that my laptop, which I am using to program my PLC, is always addressed as 1 and my target PLC is usually addressed as 2. You will probably be the same.

Now click MPI(1) and click OK. Click OK again to close the Properties window.

Save and Compile by clicking the icon located on the left of the toolbar.

Download the hardware configuration to the PLC by clicking the download icon located on the toolbar.

A window titled "Select Target Module" should open. Click OK.

Another window titled "Select Node Address" will open. You should see listed your node address for the PLC you are working with as you configured it in a previous step. If not, click view and click on whatever node address appears and click OK.

Switch back to SIMATIC manager (by clicking the tab on the taskbar).

Click on Options. Choose Set PG/PC Interface. Choose PC Adapter (Auto).

Click Properties. A new window will open, displaying either Automatic Bus Profile Detection or Local Connection. Click Local Connection and choose USB. Now choose Automatic Bus Profile Detection and change the address to 30. You can check your connection now by clicking Start Network Detection. If a new window opens displaying Network Type = MPI, Transmission Rate = 187.5kbps, you have established communications with your S7-300. Click Close. Click OK. Click OK.

It is now time to start programming. Looking at the SIMATIC Manager window, click the plus sign located beside SIMATIC 300(1), click the plus sign beside CPU 313C-2DP, click the plus sign beside S7 Program(1). Now click on Blocks and you will see System data and OB1 appear in the right window on your screen.

Double click on OB1 and a new window will open named Properties - Organization Block

Here you can choose how you want to program, in LAD (ladder), STL (statement list), or FBD (function block diagram). Choose which you want to use and click OK.

Double click OB1 again and the LAD/STL/FBD programming window will open.

You can now start programming.

I have these same instructions with pictures on my website at http://www.saturdayafternoonhobbies.com

How to Program a Siemens S7-300 Programmable Logic Controller

My name is Robert K. Moore and I am an instructor at Piedmont Technical College. I teach electronics and Mechatronics Technology classes. My hobbies include working with a 1962 Chevy II convertible, hunting fossils, particularly sharks teeth and working with electronics. Visit my site for more articles about these topics. http://www.saturdayafternoonhobbies.com

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List of Scholarships for High School Seniors Graduating in 2012

Finding the best list of scholarships for high school seniors graduating in 2012 is easy if you know a few basic techniques. It is important to recognize the types of qualifications required for different scholarships before beginning your search. Grade point average (GPA), athletic or other in-school extracurricular participation, church or other civic group volunteer work, letters of recommendation, and personal essays are all important elements in successful scholarship applications.

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Many companies -- McDonald's, IBM, Wal-Mart, just to name a few -- offer scholarships to the children and other close family members of existing employees. Diversity awards are designed to encourage under-represented groups of people to attend and graduate college. Most diversity awards only require one parent have a non-caucasian background, so biracial students often qualify.

List of Scholarships for High School Seniors Graduating in 2012

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List of Scholarships for High School Seniors Graduating in 2012

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Law School Requirements - What You Need to Do to Get Into Law School

Are you planning on heading off to law school in the near future?

If you answered yes, there are a few things you should know before you go. The following is a brief list of the typical law school requirements that you will encounter when you begin to apply.

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First, do you have a degree from an accredited undergraduate institution in the United States? If yes, you are fine - but if you answered no, you have some homework to do. The best use of your time in this situation will be to contact the Law School Admissions council and enlist their assistance in officially recognizing your degree. They in effect will be telling the law schools that you apply to that your undergraduate degree is valid.

Law School Requirements - What You Need to Do to Get Into Law School

Second, have you taken the LSAT? or have you registered to take the exam soon? All American Bar Association (ABA) accredited law schools require you to take the LSAT exam. To register for the exam visit the website of Law School Admissions council. You'll need to leave plenty of time between when you take the test and when your applications are do back to your prospective schools. Finally, not all law schools in the United States require the LSAT. Several law schools that are accredited by bodies other than the ABA require no LSAT. The most prominent of these schools are the Massachusetts School of Law and the Concord Law School in California.

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If you pay attention to these three factors you will be in great shape and well on your way to starting your career as a lawyer. Good luck!

Law School Requirements - What You Need to Do to Get Into Law School

Jeffrey Weir is a consultant, author and law school expert. His site about law school requirements has helped countless students prepare for law school.

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Teaching Jobs Overseas - Experience the Difference

International schools are gaining global recognition as more and more of their students, both expat children and, increasingly, local children achieve places at some of the most respected universities around the world. It is partly for this reason that the number of international schools is growing at a dramatic rate; more than doubling in the past ten years to a present total of 5,374 schools.

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"The reason why international schools have gained such global respect is due to the quality of the teaching they provide," continues Andrew. "Our challenge is to keep finding experienced, passionate, capable people who are also interested in teaching jobs overseas. Most teachers who do go out to work in international schools fall in love with the experience and end up staying much longer than they first anticipated. It's not just because of the chance to travel and to experience life in other countries. It's also the opportunities for professional enhancement, the development of teaching skills, and the experiences gained from working with children and teachers from many different countries."

Teaching Jobs Overseas - Experience the Difference

Here are some of the comments from people who have had teaching jobs overseas for a number of years: Dominic Crompton taught primary at the Colegio Anglo Colombiano School in Bogota, Colombia and is now deputy Headteacher at Skilts special school in Redditch, England. He says: "Without doubt, it's an experience I would recommend to anyone. It is impossible not to bring something back that is of great value, professionally and personally. Professionally you are so employable, especially if you return with experience of developing curriculum and with leadership and international links."

Jeff Burt taught physics to secondary children at Brent International School in the Philippines, then went on to the British International School in Istanbul, Turkey and is now in Sri Lanka at the Overseas School of Colombo. He is there with his wife and two teenage daughters. "Looking back, the whole international teaching experience has been amazing," he says. "I've taught Australian and American style curriculum, IGCSE (International GCSE) and IB (International Baccalaureate). You have to be prepared to adapt to new content and assessment styles as well as look at your own teaching methodology. The IB programmes are substantially different to the National Curriculum for England and Wales and can be quite demanding when you first start them, but they are very interesting to teach and incredibly good for your professional development."

And Janice Ireland is a teacher from Wales who taught in international schools in Kuwait, Cairo, Libya and The Netherlands for twelve years before returning to education in the UK. "I knew I wanted to work in an international school and waited for what I thought was the right time for my children," explains Janice. "My son was in university at the time and my daughter came with me and did her A-levels in the same school as I worked. She absolutely loved it! As a single working woman, I cannot even compare the differences to life back home in Swansea. It's been a really good thing for me and my family and I would absolutely recommend it. The people who work in international schools are incredibly positive, interesting, confident, independent people. They are really open, friendly and interested in you as a person; I think that's the type of person who is attracted to working abroad. The multi-cultural work environment of an international school opens your mind up to so many other possible ways of viewing situations, of considering the individual needs and circumstances of others, and of valuing differences."

Teaching Jobs Overseas - Experience the Difference

Findteachingjobsoverseas.co.uk provides services to teachers trained in countries with English as a first language. Particularly the UK and USA but also Australia, and New Zealand amongst others. Our website provides information to help find teaching jobs overseas and teaching jobs Europe.

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Can I Go to School While on Unemployment?

It may sound too good to be true but, yes, you can go to school while on unemployment.

Going to school while on unemployment is the perfect time to advance your career. So decide what schooling and training matches your needs. As soon as you have submitted your unemployment application, begin exploring financial aid options, federal grants, and scholarships.

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Filing for Unemployment

Can I Go to School While on Unemployment?

You can fill out an unemployment application online. Eligibility varies by state, so contact your local Employment Security Department. Before you are officially on unemployment, most states require that you first be determined unemployed through no fault of your own. You must also meet the requirements for wages earned during a four to five calendar quarter before filing a claim. When applying you should have a school or training program in mind.

After initially applying for unemployment, fill out a Training Benefits application. These benefits will allow you to continue to receive unemployment throughout your school program. Some states still require students who wish to go to school while on unemployment to be both available and seeking for work in order to receive training benefits.

Government Help and Aid

President Obama urged an unemployment reform in May 2009. This reform allows more funds for those pursuing an education while unemployed. Speaking of unemployment, he said, "It should offer folks educational opportunities they wouldn't otherwise have and give them the measurable and differentiated skills they need to not just get through these hard times but to get ahead when the economy comes back."

The government encourages people to go to school while on unemployment. Many states offer programs to help you receive career training while unemployed. These programs are generally for jobs that are in high demand. Check with your state unemployment office to find out how they can help you.

The U.S. Department of Education is also working closely with colleges and universities to help unemployed students meet their financial obligations. So talk with your college or university to find out how they can assist you.

The Federal Pell Grant Program is one way the government is aiding people going to school while on unemployment. Students can receive up to ,350 for educational costs. Such costs include tuition, books, and housing. They also offer help to those in school with dependents. The exact amount you will receive is determined upon completing an application. These grants are available to unemployed students seeking an undergraduate degree or certificate.

While collecting unemployment, you can go to school. The U.S. government wants you to be better trained and better equipped for your career. There are many programs and benefits available to help finance your higher education. Take advantage of these schooling opportunities while unemployed.

Can I Go to School While on Unemployment?

Dave Freeman is a staff writer at GetRetrained.com. GetRetrained.com is linked with hundreds of schools throughout the nation. After you have chosen a new career path to begin, we connect you with training programs in your area. Our exhaustive list allows you to view several schools and review what they have to offer. From helping you select another career path, to linking you with a school in your area, to helping you find a job, we at GetRetrained.com are here for you every step of the way.

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