Fluid Management System

Fluid Management System CAREER EPISODE 1 INTRODUCTION CE 1.1: Project title Fluid Management System was completed in my last year of Bachelor Degree program. I completed my Bachelors of Engineering Technologist in Mechatronics from Chisholm Institute, Dandenong, Australia. My first career episode is based on this project experience that I gained and performed for the fulfillment of my work placement. The project was completed in 13 weeks, from July 2015 to October 2015. I was assisted and guided by Prof. Francis Percy, lecturer of Advance PLC. BACKGROUND CE 1.2 Nature of project My project water management system operated on six different modes, operator can switch between different modes with the help of control panels that are mounted on each operating mode switch. It has 2 modes for each operational mode i.e. Automatic and Manual mode. 1 is used to represent Automatic mode and 2 for Manual mode. There are also auto-manual switch selectors. The mode is chosen based on the way user wants to operate. For this purpose, SCADA PLC programming is done to provide user friendliness. CE 1.3 The pump MDC 118 operates when the tank 1 or 2 is filled from the holding tank whereas MDC 103 operates when filling it between tank 1to tank 2 or vice-versa. The six operational modes are: Operation mode 1 fills tank 1 from holding tank through SV321 value (energized) and SV322(deenergized). Operational mode 2 fills tank 2 from holding tank through SV321 and SV322 valves (deenergized). Operational mode 3 fills tank 1 which has an analog sensor to manage the start and stop level for the filling with exact value from tank 2 through SV323 deenergized valve and SV324 energize value. Operational mode 4 fills tank 3 which has a digital and capacitive sensor to manage the start and stop level for the filling with capacitive sensors, LSL 532 and LSH 531 from tank 2 through SV323 energized valve and SV324 deenergize value. Operational mode 5 fills the holding tank to tank 1 and at the same time, transfers tank 1 to tank 2 through SV321 (energized), SV322 (de-energized), SV323 (de-energized) and SV324 (energized). It also maintains a set point for filling the tanks. Operation mode 6 fills the holding tank to tank 2 and at the same time, transfers tank 2 to tank 1 through SV321 (energized), SV322 (energized), SV323 (energized) and SV324 (de-energized). It also maintains a set point for filling the tanks. CE 1.4 Objectives To prove my overall understanding on automation system, I had to complete a project. I chose a project that was based on how the automation system works in manufacturing industry of advance PLC department. And as per my project requirement I had to perform PLC and SCADA programming. Based on the two choices given to me, from Fluid management system and Pressure management system, I chose Fluid management system. The objective was to make a complete a fully automated fluid management system using PLC programming with an HMI/SCADA in 13 weeks duration. It should consist of 3 water tanks, 2 pumps, number of 2 3 way valves using Allen Bradely software IFIX SCADA software and various fluid level measuring instrument. It was further required to: Program PLC for six operating modes While implementing all the hardware like fault lights operating lights SCADA programming Interfacing. CE 1.5 The chart of organizational structure CE 1.5 Duties I studied and researched the basic architecture of the fluid management system which included PLC CPU (Allan Bradley), Device Net Scanner and Flex I/O, RSlogix 5000(PLC programming software), HMI interact and software. I prepared the fluid management trainer system Device Net Network Set up. I created the PLC CPU DeviceNet scanner Module interface I create the mapping DeviceNet Nodes Input and outputs to the DeviceNet Scanner Module input and output registers. Performed commissioning and testing of a PLC system Coded the PLC programming for the water station for six different operating modes. Represent all the different modes to supervisor, explaining them how it works. Diving and providing time slots to team members. Maintaining balance and peace to avoid conflict among each other. Kept good relations with supervisor. Reporting the development of the project to the lab supervisor and coordinator. PERSONAL ENGINEERING ACTIVITY CE 1.6 The project I have done related to the educational qualifications that I have obtained in my degree course. The relationship between the different modules and project processes is explained below: PLC (Program logic control): Here, I learned how to write PLC program with Allen Bradley software by using RS logic 5000. This skill was helpful in completing my programming design for water station. Instrumental Principal: This module gave me the knowledge about sensors, how they work and wiring of the sensors, how you can program them. For this project, I have used electronics level sensor LK31 and Impeller flow meter. Electronics level sensor determine the level of fluid according to the capacitive measuring principal. Industrial Networking: My project involved the knowledge of DeviceNet and scanner which was learnt from this module. Project management: Project management module skills were completely applied at all the stages of project. The project was also divided in to two parts. All the tasks were scheduled and divided accordingly. I applied various techniques to practical implementation that learnt from project management. Mathematics and Fluid Mechanics: My project involved a lot of calculation for example, the calculations to find torque, force, and power for the motor along with the calculations done to find the physical parameters of components. I also did the calculations to select the pulley and belt as well. Professional Engineering Technologist: During the project life cycle, while working with Water station, I had to rely on the communication skills. The work experience gained during this project demonstrated how important the communication skills are to the professional engineering technologist. CE 1.7 As a group project, I had to separate the system which contains two main part PLC programming and SCADA programming. I decided to complete the PLC programming and assigning my mate mater the SCADA programming. In PLC Program subroutine, to make the programming easy for controlling, for finding faults and for easy access to different part of programming, I had to split the main routine into different subroutine. This process can be seen below:   Ã‚   Figure 1 PLC Program design methodology CE 1.8 To prevent the occurrence of PLC program interlocking, this technique of energization of one contractor prevents the energization of other until it is in use. This method is called interlocking and I used interlock as a pre-requirement of the task to run the program. Various safety factor and other reasons such as Pump/Motor Faults, pressure requirement of system etc. are considered to run the function of PLC properly. It also makes the programming part easy, for this only writing the code logic of interlocking at one place is required and the same code is used as a pre-requirement of task at another place. Figure 2 logic of interlock in one place and use interlock as pre-requirement of task CE 1.9 Considering the program logic interlock as Pump fault. It means, that if there is no pump fault, then the PLC will start running normally. Once the PLC starts running, it starts to operate in mode 1. In programming mode one, filling the tank 1 from holding tank through SV 321 valve (energized) and SV 322 valve (de-energized) is done. For the PLC program to be permissive, i.e. each process condition undertaken is called a permissive. For example, consider permissive to be a burner control for large combustion furnaces. To start the burners in a large furnace safely, the control system requests permission from several process switches, including high and low fuel pressure, air fan flow check, exhaust stack damper position, access door position, etc. Every process condition that it undergoes is called a permissive. In the below diagram, it is control to fill the tank 1 by tank level permissive, if water level is below 10cm it will start filling tank until to reaches 13cm. Figure 3 PLC program permissive CE 1.10 Once the PLC program was completed and along with all the DeviceNet IOs pre-commissioned, registered and labelled in the PLC controller memory I started to design each operating modes. I started with operating mode 1. Once the programming of operation mode 1 and 2 was completed and it started working as intended, I could test the rest of the inputs in the system which were the water level sensors. While programming I constantly referred to operating mode table that I made using various engineering tools. Once the basic idea was plotted in the table format, the programming of remaining operating modes was successfully completed and also some extra additional features were added. Figure 4 Operating mode table CE 1.11 In the system architecture, there is a PLC CPU, DeviceNet Scanner and Flex I/O, RS logic 5000, PLC program and SCADA IFIX program. DeviceNet is a network system that is used in the automation industry to interconnect control devices for data exchange. In the water management system, there is a DeviceNet scanner node. In a typical configuration, the scanner module acts as an interface between DeviceNet devices and the programmable controller. The scanner module communicates with DeviceNet devices over the network to: Read inputs from slave devices Write outputs to slave devices Communicate with peer devices. DeviceNet nodes setup as follows: Node 0: 1794-SDN Compact Logix DeviceNet Scanner/Master Module used for DeviceNet network control and data exchange with the PLC CPU. Node 1: Allen Bradley Flex IO distributed IO system. Node 2: Allen Bradley DeviceNet interface Stack Light system. Node 4: Allen Bradley Variable Speed Drive used for speed control of pump MDC118 CE 1.12 I started performing test runs at the final stage, which includes: Checked all the cable connections between the PLC and the plant are complete, safe, and to the required specification that meets the local standards. Checked that all the incoming power supply matches the voltage setting for which the PLC is set. Checked all protective devices are set to their appropriate trip settings. Checked that emergency stop button. Checked that all input/output devices are connected to the correct input/output points and giving the correct signals. And checked the FLEX I/O system that contains a network adapter, terminal bases, and I/O modules. CE 1.13 After performing the above troubleshooting, the only problem I faced during the implementation of the whole system was that the Emergency stop button wasnt working. To solve this issue, I took various steps. I started by checking the connections. The first module is 1794-ADN DeviceNet Gateway module which is used to communicate and transfer data between the DeviceNet Master Module and the Flex IO modules 2 4. And the module the next 3 modules in order from 2 to 4 are 1794-IB32 Digital Input Module 1794-IE4XOE2 Analog Input/output combination module 1794-OB16 Digital Output Module. I checked the digital and analog input connection with emergency button with help of my lab supervisor and realized the problem was regarding the analog and digital input only, so I tried to resolve it by doing a research and taking suggestions from supervisors. SUMMARY CE 1.14 I successfully achieved all the objectives of the project within specified time limit and I gained good knowledge from this project as I did intense research about sensors and PLC programing for my project in the form of literature review. This had added many useful engineering techniques to my knowledge and enhanced my problem solving and analytical skills. In addition to that, I also implemented and used my engineering knowledge to make this project successful. I used concepts of various Engineering techniques and PLC programing which I had studied during my course of Bachelor of engineering technologist in Mechatronics. I presented a project thesis and seminar on my work on submission of my project.

Photography in Flux Essay -- Digital Photography Pictures Technology E

Photography in Flux It is no secret that digital photography is very rapidly finding a niche in modem society, in both the professional realm as well as in the home. The advent of newer, faster, and more embellished technologies have placed the power of photographic production in the hands of the common person. An art form that formerly was left to the charge of few skilled professionals has been forever changed by these technologies. Certainly, this evolution of sorts has its strengths as well as its drawbacks. What advantages does a photographer have with digital technology that he or she might not have with a traditional camera? What are the disadvantages? And what does this technology mean for the future of the photography trade? First, what exactly is the fundamental technological difference between digital photography and conventional film? In Tom Ang's The Art of Digital Photography, he says that "the key difference is the light-sensitive medium used to capture the image" (10). Okay. Well what does that mean? Images in traditional film are created when "silver salts suspended in the emulsion convert the amount of light falling on them into a latent image" (Ang 10). When film is developed, the chemical processes that occur magnify the changes to produce a viewable image. By contrast, digital cameras have an electronic sensor that converts the light falling on it into an electrical charge, which is then processed by electrical circuitry and turned into a code that can be stored, transported, copied, etc. Advantages Essentially, once an image exists in digital form, it can either be tweaked to adjust even its most indiscernible features or it can be entirely morphed into something altogether different. There ... ...exis.com>. Ippolito, Joseph A. Understanding Digital Photography. Clifton Park, NY: Thomas/Delmar Learning, 2003. Meyer, Pedro. "Traditional Photography vs. Digital Photography." ZoneZero: From Analog to Digital March 1, 2001. 14 Sept. 2004 <http://www.zonezero.com/ editorial/marzoO l /march. html>. Potts, Mary Anne. "Q&A: The Pixel Pro." National Geographic Adventure Magazine June/July 2003. 15 Sept. 2004 <http://www.nationalgeographic.com/adventure/ 0306/gn_a.html>. Sand, Michael L. "Metamorphoses: Photography in the Electronic Age." Aperture 136 (1994): 3. Smurthwaite, Nick. "Faking It." Design Week April 1998: 17-19. LexisNexis Academic. Parks Library, Iowa State U. 15 Sept. 2004 <http://www. lexisnexis.com> Ziegler, Katleen and Nick Greco. Digital Focus: The New Media of Photography. Southampton, Pa.: Dimensional Illustrators, 1997.

Explore how Carol Churchill presents woman in the role of mother in “Top Girls”

In the first act, Churchill has created a surreal environment for all of the women. We find, during the course of the meal, that all of the women have things in common. Each of the women had children apart from Isabella. Lady Nijo and Griselda however, had to live without knowing their children because of their husbands, in both cases the husbands removed the children. Dull Gret is slightly different, she experienced living with her children and bringing them up, however her oldest and youngest were killed during war. Pope Joan does not know what happened to her baby, as she was stoned to death as soon as she gave birth, she assumes they killed it. Marlene, the leader of the women had a completely different story to tell, however she does not talk of it during Act One. Marlene became pregnant at 17 and let her sister, Joyce adopt the baby because at the time Joyce could not become pregnant. Marlene has since, had two abortions. Griselda, Lady Nijo and Marlene are all similar in the fact that they all had to sacrifice their children for a particular reason. Griselda sacrificed her children to make the man she loved happy. Griselda does not arrive to the meal until quite late, the other women are all drunk and merry and Griselda appears un noticed. She appears polite but shy and does not want to make a fuss but eventually gives into a pudding, â€Å"Oh if everyone is. I don't mind. † Marlene automatically puts her in the spot light by introducing her as having the â€Å"fairy-story† life. All of the women become interested in Griselda's story and begin questioning it. Griselda, whilst talking appears still faithful to the Marquis, â€Å"But of course a wife must obey her husband. And of course I must obey the Marquis. Throughout the story of Griselda's life, Marlene acts as if she is almost showing off that she already knows the story, â€Å"Oh, you wait. † This shows that Marlene feels a need to be included and in control at all times. Unlike Lady Nijo, Griselda spent six weeks with her first born, a girl, Nijo finds this hard to believe, â€Å"Much better to do it straight away . † Only Nijo truly understands Griselda's life and she has been put in the same position, Marlene finds it an outrage that she let the Walter take her baby, â€Å"Walter was bonkers† and obviously, it will be hard for Gret to accept as she brought up her own children, â€Å"Bastard†. Even when everybody else is being un fair and negative about Walter, Griselda remains with her upbeat attitude, whilst still shy she shows her feelings. Griselda takes up much of the conversation when she arrives, and when this conversation has ended she doesn't talk much more. Throughout Act One and throughout Griselda's life story Lady Nijo listens, and doesn't talk an awful lot about her background and history. She talks about her past in and amongst everyone else's conversation, although they listen to her, they do not pay as much attention to her as they do to Griselda. Lady Nijo does not appear as hurt and as faithful to her children as Griselda did to hers, this is probably because Griselda spent a short time with her children and Nijo did not. Lady Nijo's first baby was Akenbono's, a girl and he received it and brought it up with his wife. Her second, was to an unknown and the third and fourth children were Ariake the priests. Nijo never saw her third child after it was born and admits feeling nothing at all for her third son, her fourth child. I think that this is because Ariake had died before the birth and she was still grieving him, â€Å"I didn't want to see anyone. In Act Two Scene Two we are introduced to Marlene, a character brought in from Act One, Joyce, Marlene's sister, Angie, Joyce's daughter and Marlene's niece and Kit, Angie's friend. The following scene concentrates mainly on Marlene's niece, Angie and her younger friend, Kit. We begin to realise that Angie maybe slightly â€Å"simple† and troubled as she talks to Kit about controlling objects with her mind and things falling from the walls in her house, â€Å"Last night I was in bed and suddenly a picture fell down off the wall. The pair continually ignore Angie's mother, Joyce, shouting them from the house. This shows disrespect of the children to their mother. The childlike attitude of the children continues throughout the play, they continue to ignore the mother shouting and continue bantering as children would, â€Å"I don't want her to like me. † This eventually progresses into Angie suggesting that Joyce is not her biological mother, and Marlene, her aunt, is. â€Å"I think I'm my aunts child. I think my mother's really my aunt. For a girl of Angie's mentality to suggest something as complex as this must suggest that her and Joyce do not have a loving, sharing relationship, however, Angie's only explanation for this suggestion is â€Å"my mother hates her. † We learn further on in Scene Two that Joyce does not think very highly of Angie â€Å"I don't know who'd have her, mind. † This seems stranger for a mother to say to another child about her own daughter. This is possibly where Churchill is trying to insinuate that, at heart, Joyce does not care for her child as much as a normal mother would. Showing cracks in the couples, mother daughter relationship. Another loss of respect between Joyce and Angie is shown when Joyce calls her a â€Å"Fucking rotten little cunt. † And states â€Å"You can stay there and die†, this either shows that Joyce is now sick of Angie not listening to her or if she just does not have enough respect for her. Act Three actually happens a year before Act Two happens. Therefore the old dress that Angie puts on in Act Two, is the dress that Marlene gives her as a present in Act Three. Marlene and Joyce seem to have an awkward relationship, they are constantly bickering when Marlene first arrives, â€Å"I don't mind seeing you. â€Å"Great, I feel really welcome. † The pair wait until Angie has gone to bed before talking about her and her life, Angie refuses to go to sleep fore quite a while because her aunty is there, but eventually she gives in. Joyce then begins to talk about Angie, â€Å"I don't know how you could leave your own child. â€Å", Marlene does not react badly to this vici ous statement, she simply replies, â€Å"You were quick enough to take her. † I feel that this shows that Marlene does not know how much Joyce has done for her. She obviously does not appreciate that Joyce has brought Angie up the best that she could so that Marlene could move away and concentrate on her career. Joyce begins to take ownership of Angie as the argument continues, showing that she has a bond with her child, motherly love. â€Å"Course I do, she's my child. † Instead of moving away and getting a job and making money, Joyce took Marlene's baby and gave it a life. The relationship between Marlene and Joyce begins to break up as the two begin to blame each other for the mistakes they have made in life, â€Å"I did get pregnant and I lost it because I was so tired looking after your fucking baby. The Act ends with Joyce and Marlene apologising and Joyce going to bed, leaving Marlene alone to have another drink. Angie then wakes up calling for her mother and walks downstairs, when Angie realises that its Marlene sat there and Joyce has gone to bed she only mutters two words, â€Å"frightening† â€Å"frightening† . This symbolises Angie's weirdness and simple mindedness. Is she speaking about the conversation between Joyce and Marlene or is she speaking about the fact that she thought Marlene was her mother ?

Searching for a Sugar Man Directed by Malik Bendjelloul

Searching for Sugar Man, a 2012 documentary directed by Malik Bendjelloul, contains many documentary-type aesthetics. The film tells the tale of an American musician named Sixto Rodriguez whose music encouraged the anti-Apartheid movement in South Africa. The characters within the film are all real people based off of a real-life situation. This particular film contains many on-camera interviews in order to get that documentary type feel. The film shows interviews from a construction worker, to all of Rodriquez’s daughters. Along with these interviews are also on-screen texts used to show the history of Rodriguez. Some on-screen texts display the interviewees names or some display the date and place where Rodriguez was. In one interview,†¦show more content†¦Many, of the people directly address the camera. Since they are being interviewed, they are either looking directly at the camera, or they are looking at the person interviewing them. There are countless aerial views of cities, mountains, ect. All of these create a sense of---- Every aesthetic used creates a sort of oddness and curiosity that presents the viewers with an elements of surprise everywhere you turn. Bernie is a film based in a small town in Texas called Carthage where the main character Bernie, whom is played by Jack Black, is the talk of the town. This film takes on a somewhat documentary-type feel because it includes many on-camera interviews among townspeople. Many of the townsfolk being interviewed have strong opinions on Bernie and a â€Å"mean old lady† named Marjorie Nugent. Most of the townspeople being interviewed are actually real people from Carthage, Texas. The interviewees give the overall film a sense of realism not only because they play the part of an East Texan well, but also because they have Texan accents to go along with it. Even though Bernie seems like a tall tale, it is actually based upon a true story. The light, happy, and perky innocence of Bernie Teide creates the audience to believe no such man could do any harm. The colors used to portray the town are all bright, happy, and colorful. The aesthetics of the town are used create the feel of a happy small town leading to believe that there’s no way aShow MoreRelated The American Folk Music Legend Sixto Diaz Rodriguez1245 Words   |  5 PagesThe producer of his second album, Steve Rowland who worked with famous artists such as Jerry Lee Lewis, The Cure, Gloria Gaynor etc... Described him as his most memorable artist, â€Å"a prophet, way beyond a musical artist.† Searching for Sugarman (2012) Directed by Malik Bendjelloul [Film]. UK: Studio Canal, Sweden: Sony Pictures Classics. The lyrics of his songs are shaped around his political sense of injustices of an oppressed society with a desperate ability to face the cruel world in which he was