Preview

Selection, Hardware and Software Requirements of a PLC

Good Essays
Open Document
Open Document
1572 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Selection, Hardware and Software Requirements of a PLC
Understand the selection, hardware and software requirements of a PLC

P1

There are 3 types of PLC, unitary, modular and rack-mounted. A unitary PLC is a stand alone unity, it has no room for expansion and works on its own. They are useful for automating activities such as stress testing. For example the stress testing of a hoist, instead of paying someone to manually control the hoists up and down movement leaving time in between each motion a PLC could be used instead. It could be set up to perform a number of cycles of movement of the hoist by the use of limit switches at the top and bottom of its movement to detect when to change direction. The time to wait between movements can be set so that the motor doesn't get strained. Other safety features could be added, for example, a set of sensors could be installed around the hoist to stop it's movement if some one comes too close to it. It would also be easier to set the parameters of the test and change them easily for testing a different hoist or piece of equipment. It would have to keep its functionality to a small scale as it can't be upgraded at all. A large variety of inputs and outputs could be used as most PLCs support analogue and digital. This would mean you could have temperature sensors in use on the analogue and through-beam sensors on digital. It is likely that this type of PLC would be mounted somewhere near the object it is controlling, most likely to a nearby wall.

A modular PLC allows for other modules to be connected to it increasing its functionality such as position sensing, stepper and servo motion control and packaging and press controls. Where it may have only had the ability to handle a certain amount of functions adding more increases this. The two or more connect together and act as if they still just one. This would be useful for a company that uses a greater amount automation than the above company, perhaps for a conveyor belt system that is wanted to be upgraded in the future

You May Also Find These Documents Helpful

  • Powerful Essays

    cma case

    • 20824 Words
    • 137 Pages

    ability to develop new building automation equipment and tools and an initial version of a…

    • 20824 Words
    • 137 Pages
    Powerful Essays
  • Good Essays

    Next pc is a uk based retailer that sells moderately price clothing for men, women and children. It also specialize in housewives and furnitures through 500 stores primarily in uk and irelandl. It also franchise more than 200 stores in asia nad Europe counties.…

    • 1551 Words
    • 7 Pages
    Good Essays
  • Satisfactory Essays

    ET2750

    • 545 Words
    • 2 Pages

    The PLC business is a 6.5 billion dollar industry that is growing at 20% per year. There are about 110 programmable controller venders, over 1000 vendors offering PLC add-in boards and other peripherals, and over 2000 companies developing PLC solutions.…

    • 545 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Some industrial applications are automated manufacturing machinery to power hand tools. High pressure hydraulic fluid can be transmitted through a network of hoses to operate motors, actuators, and cylinders which then cause a robot to operate.…

    • 952 Words
    • 4 Pages
    Powerful Essays
  • Powerful Essays

    Organizational Review of Plant Automation Group It is intended that this organizational review, will provide the Districts with a better understanding of the changing process computer hardware and software support needs. Also to review the department location for the Plant Automation Group (Group), and develop recommendations on the proposed reporting relationships. ¨ Review the background information. ¨ Identify the primary and secondary functions of the Plant Automation Group ¨ Review possible location of the Plant Automation Group.…

    • 1682 Words
    • 7 Pages
    Powerful Essays
  • Best Essays

    NEXT PLC is a retailing company that primarily operates in the UK, and has been trading for almost 150 years; however, the brand itself was first created in 1982 (Next plc, 2010a). The company offers a range of clothing, accessories, home ware and footwear. The company’s headquarters is located in Leicester, UK and is currently run by Chief Executive Simon Wolfson. NEXT distributes through three main channels: NEXT Retail, operating in more than 500 stores around the UK and Ireland, NEXT Directory, a website and catalogue list for over 2 million active users. And NEXT International, with chains of over 180 stores worldwide including an international website. However, NEXT also have three more distribution channels which include designing, wholesaling and customer service management. They come under Next Sourcing, Lipsy and Ventura respectively.…

    • 1596 Words
    • 7 Pages
    Best Essays
  • Good Essays

    Aasos

    • 271 Words
    • 2 Pages

    - Provides all the crucial information on ASOS plc required for business and competitor intelligence needs…

    • 271 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The objective of such an analysis is to investigate how the organisation needs too form its strategy in order to develop opportunities in its environment and protect itself against competition and other threats (Lynch, R 1997).…

    • 810 Words
    • 4 Pages
    Good Essays
  • Good Essays

    3.1 Be able to identify and use the appropriate accounting system to meet specific organisational requirements. 3.2…

    • 527 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    • It got good response form WHO , Global Business Council for HIV / AIDS and other NGOs, thus making it as a socially responsible organization in Global business .…

    • 1721 Words
    • 7 Pages
    Powerful Essays
  • Best Essays

    Schools are constantly looking for ways in which to improve. Research has revealed several attributes of a school that proves to lead towards student learning and higher achievement including strong leadership, clear and shared mission, vision, values, and goals, collective inquiry, action oriented, collaborative teams that work interdependently, a focus on student learning and results oriented. These ideas are represented within a Professional Learning Community (PLC). To become a PLC, a staff must make changes in their actions and work together focusing on student learning. PLC’s have evolved out of failed school reform measures. It attempts to make permanent changes to a school’s culture to affect change in student achievement.…

    • 2737 Words
    • 11 Pages
    Best Essays
  • Powerful Essays

    A G Barr plc manufactures, distributes and markets drinks, primarily carbonated soft drinks. Based in Glasgow, it has been manufacturing soft drinks in Scotland since 1875. Its most famous product, Irn-Bru, was first produced in 1901. Barr’s became a public limited company in 1965. The business has always been associated with the Barr family and members of it own the majority of shares in the company. However, Robin Barr, the chairman, is the only member of the Barr family still directly employed in the business. Barr’s has a deliberate policy of focusing on the drinks market. It does not produce any other type of product and has no interests in any other fields of business activity. It describes itself as an ‘independent, consumer led and profitable public company, engaged in the manufacture, distribution and marketing of branded soft drinks’.…

    • 2075 Words
    • 9 Pages
    Powerful Essays
  • Powerful Essays

    Conveyor Belt

    • 7352 Words
    • 30 Pages

    Scientific automation includes integration of additional functions in the software PLC. In addition to sequential control, motion control and control technology, the software PLC also includes measurement technology and other components…

    • 7352 Words
    • 30 Pages
    Powerful Essays
  • Good Essays

    Cloverleaf Plc Case Study

    • 1119 Words
    • 5 Pages

    Cloverleaf plc was a UK­based supplier of bottling plant used in production lines to transport and fill bottles. Two years ago it opened an overseas sales office targeting Germany, France and the Benelux countries. It estimated that there were over 1,000 organisations in those countries that had bottling facilities, and that a key sales push in northern Europe was therefore warranted. Sales so far had been disappointing with only three units having been sold. Expectations had been much higher than this, given the advantages of their product over that produced by their competitors. Technological breakthroughs at Cloverleaf meant that their bottling lines had a 10 per cent speed advantage over the nearest competition with equal filling accuracy. A key problem with competitor products was unreliability. Down time due to a line breakdown was extremely costly to bottlers. Tests by Cloverleaf engineers at their research and development establishment in the UK had shown their system to be the most reliable on the market. Cloverleaf’s marketing strategy was based around high quality, high price competitive positioning. They believed that the superior performance of their product justified a 10 per cent price premium over their key competitors who were all priced at around £ 1 million for a standard production line. Salespeople were told to stress the higher speed and enhanced reliability when talking to customers. The sales organisation in northern Europe consisted of a sales manager with three salespeople assigned to Germany, France and the Benelux countries respectively. A technical specialist was also available when required. When a sales call required specialist technical assistance, a salesperson would contact the sales office to arrange for the technical specialist to visit the prospect, usually together with the salesperson. Typically, four groups of people inside buying organisations were involved in the purchase of bottling equipment,…

    • 1119 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Modularity

    • 513 Words
    • 3 Pages

    In industrial design, modularity refers to an engineering technique that builds larger systems by combining smaller subsystems.…

    • 513 Words
    • 3 Pages
    Good Essays