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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Aplikace řídicího systému Simatic pro řízení balícího stroje / Application of the Simatic control system for the packaging machine control

Urbánek, Tomáš January 2014 (has links)
Masters thesis deals with the SIMATIC, which is the process control system from Siemens. Simatic belongs to the group of so-called programmable logic controllers (English Programmable Logic Controller). It is a microcomputer that processes the instructions in real time. I have designed a control algorithm and HMI visualization in my Masterś thesis. Moreover,my attention is focused on PLC S7 - 300. The S7-313C is used for implementations. The proposed solution has been tested and operated in real conditions
2

Automatic Status Logger for a Gas Turbine

García, Edith January 2007 (has links)
<p>The Company Siemens Industrial Turbo Machinery AB manufactures and launches in operation among other things gas turbines, steam turbines, compressors, turn-key power plants and carries out service for components for heat and power production. Siemens also performs research and development, marketing, sales and installations of turbines and completes power plants, service and refurbish.</p><p>Our thesis for the engineering degree is to develop an automatic status log which will be used as a tool to control how the status of the machine is before and after technical service at gas turbines. Operational disturbances will be registered in a structured way in order to get a good possibility to follow up the reliability of the application.</p><p>An automatic log function has been developed and will be activated at start, stop and shutdown of the turbine system. Log files are created automatically and get a name with the event type, the date and the time. The files contain data as timestamp, name, measured values and units of the signals which are going to be analyzed by the support engineers. They can evaluate the cause of the problem using the log files.</p>
3

Automatic Status Logger for a Gas Turbine

García, Edith January 2007 (has links)
The Company Siemens Industrial Turbo Machinery AB manufactures and launches in operation among other things gas turbines, steam turbines, compressors, turn-key power plants and carries out service for components for heat and power production. Siemens also performs research and development, marketing, sales and installations of turbines and completes power plants, service and refurbish. Our thesis for the engineering degree is to develop an automatic status log which will be used as a tool to control how the status of the machine is before and after technical service at gas turbines. Operational disturbances will be registered in a structured way in order to get a good possibility to follow up the reliability of the application. An automatic log function has been developed and will be activated at start, stop and shutdown of the turbine system. Log files are created automatically and get a name with the event type, the date and the time. The files contain data as timestamp, name, measured values and units of the signals which are going to be analyzed by the support engineers. They can evaluate the cause of the problem using the log files.
4

Automatic Status Logger For a Gas Turbine

Jonas, Susanne January 2007 (has links)
<p>The Company Siemens Industrial Turbo Machinery AB manufactures and launches in operation among other things gas turbines, steam turbines, compressors, turn-key power plants and carries out service for components for heat and power production. Siemens also performs research and development, marketing, sales and installations of turbines and completes power plants, service and refurbish.</p><p>Our thesis for the engineering degree is to develop an automatic status log which will be used as a tool to control how the status of the machine is before and after technical service at gas turbines. Operational disturbances will be registered in a structured way in order to get a good possibility to follow up the reliability of the application.</p><p>An automatic log function has been developed and will be activated at start, stop and shutdown of the turbine system. Log files are created automatically and get a name with the event type, the date and the time. The files contain data as timestamp, name, measured values and units of the signals which are going to be analyzed by the support engineers. They can evaluate the cause of the problem using the log files.</p>
5

Ανάπτυξη εφαρμογής βιομηχανικού αυτοματισμού με ρομποτικές τριβο-πολυμερείς αρθρώσεις

Βασιλόπουλος, Κωνσταντίνος 07 June 2013 (has links)
Η διπλωματική εργασία συνίσταται στην κατασκευή και τον έλεγχο της κίνησης ενός ιδιόμορφου ρομποτικού βραχίονα προορισμένου να υλοποιεί ελαφρού τύπου εργασίες. Η διάταξη περιλαμβάνει τις τριβο-πολυμερείς αρθρώσεις συνδεόμενες μεταξύ τους μέσω ελαφρών σωλήνων αλουμινίου, τους βηματικούς κινητήρες, καθώς και τις κάρτες οδήγησής τους, τους αισθητήρες μέτρησης γωνίας περιστροφής των αρθρώσεων και τον προγραμματιζόμενο λογικό ελεγκτή (PLC) για τον έλεγχο της κίνησης του βραχίονα. Επίσης, χρησιμοποιείται το λογισμικό SCADA WinCC Flexible για την επικοινωνία του χρήστη με τη διάταξη. Βασικός σκοπός της εργασίας είναι ο έλεγχος κίνησης του ρομποτικού βραχίονα Robolink μέσω βηματικών κινητήρων, οι οποίοι με τη σειρά τους ελέγχονται από το PLC. Ο ρομποτικός βραχίονας Robolink είναι ένας βραχίονας από ελαφριά υλικά, σχεδιασμένος για ελαφριές εργασίες με μεγάλες δυνατότητες σε ταχύτητα αλλά σχετικά μικρή ακρίβεια στην επίτευξη θέσης στο χώρο. Ο Robolink είναι ένας βραχίονας διαμορφώσιμος από το χρήστη, ο οποίος μπορεί να επιλέξει το μήκος των μελών του και συνεπώς την απόσταση μεταξύ των αρθρώσεων, ενώ διατίθεται με διάφορους βαθμούς ελευθερίας, ανάλογα με τις ανάγκες της εφαρμογής. Στη συγκεκριμένη εφαρμογή ο βραχίονας διαθέτει 4 βαθμούς ελευθερίας, δύο περιστροφικούς περί άξονα και δύο περιστροφικούς σε επίπεδο. Η κίνηση του βραχίονα γίνεται μέσω νηματόσχοινων τα οποία κινούν τις αρθρώσεις του και συνδέονται μέσω ειδικών τροχαλιών με τους βηματικούς κινητήρες. Η ανίχνευση της κίνησης γίνεται με κωδικοποιητές (encoders) που βρίσκονται πάνω στο βραχίονα και δίνουν την πληροφορία για τη γωνία περιστροφής κάθε άρθρωσης στο PLC. Τα σήματα των κωδικοποιητών διαβάζονται μέσω της κάρτας μέτρησης FM 350-2 του PLC. Η κάρτα FM 350-2 έχει τη δυνατότητα να μετρά παλμικά σήματα μεγάλης συχνότητας, όπως είναι αυτά των κωδικοποιητών, καθώς και να ενεργοποιεί κάποιες ψηφιακές εξόδους ανάλογα με τον αριθμό των σημάτων που έχει δεχθεί. Το PLC λαμβάνει από τη μονάδα FM 350-2 την ακριβή γωνία περιστροφής κάθε άρθρωσης του βραχίονα και ελέγχει την ενεργοποίηση και φορά περιστροφής κάθε ενός από τους τέσσερις βηματικούς κινητήρες, ελέγχοντας κατ’ επέκταση την κίνηση του βραχίονα. Για τη λειτουργία της διάταξης, ο χρήστης μπορεί να επιλέξει ανάμεσα σε 4 δυνατές λειτουργίες κίνησης του βραχίονα. Οι λειτουργίες αυτές είναι: Χειροκίνητη κίνηση με αναλογικά-γραμμικά ποτενσιόμετρα, κίνηση με χρήση οθόνης αφής, κίνηση προκαθορισμένης επίδειξης και κίνηση επιστροφής στη θέση αναφοράς (Reset). / --
6

Automatic Status Logger For a Gas Turbine

Jonas, Susanne January 2007 (has links)
The Company Siemens Industrial Turbo Machinery AB manufactures and launches in operation among other things gas turbines, steam turbines, compressors, turn-key power plants and carries out service for components for heat and power production. Siemens also performs research and development, marketing, sales and installations of turbines and completes power plants, service and refurbish. Our thesis for the engineering degree is to develop an automatic status log which will be used as a tool to control how the status of the machine is before and after technical service at gas turbines. Operational disturbances will be registered in a structured way in order to get a good possibility to follow up the reliability of the application. An automatic log function has been developed and will be activated at start, stop and shutdown of the turbine system. Log files are created automatically and get a name with the event type, the date and the time. The files contain data as timestamp, name, measured values and units of the signals which are going to be analyzed by the support engineers. They can evaluate the cause of the problem using the log files.
7

Řídicí systém autoklávovacího procesu / Control system of the concrete batch process

Macej, Maroš January 2012 (has links)
The work presents a control system for energy savings using the recycling of steam in autoclaving process of porous blocks. This work describes a manufacturing process of porous. The control system is based on programmable controllers from Siemens series S7-300, then is applied to the TIA Portal software for the programming of these units. Lastly, the work comprises of process simulation, control system and its subsequent visualization.
8

Přenos a využití procesních dat (PLC) v systému řízení výroby / Transfer and utilization of process data (PLC) in production control system

Kupčík, Michal January 2011 (has links)
This work explains to reader the difficulty of production scheduling and why is much advantageous using proper system for this work. Next he reads about complexity of production management and about necessity of linkage between all levels of company’s IT systems. We are going to use three different approaches for getting Siemens controller’s data out and for two of them we are going to describe general procedure, how we gets a data files, which are openable in classic table processor like MS Excel and which contain user’s choosen variables including their actual values. Finally reader will be familiarized with SimRead program, which serves for reading variable’s values in combination with Simatic standart communication blocks.
9

Zpracování a vizualizace průmyslových signálů s využitím PLC systémů / Industrial Signal Processing and Visulalization Using PLC Systems

Hauer, Petr January 2013 (has links)
This master’s thesis aims to familiarize with the types of signals used in industrial automation technology. Below are the methods for their processing and transfering to the PLC control system It is described method of processing these signals using an industrial controller of the S7 - 300 and a program for creating visualizations SIMATIC WinCC V7.0. The second part of the master’s thesis deals with the implementation of the control software of a specific technological process.
10

Stanovení způsobu a prostředků měření geometrie zakládaného kusovitého produktu na skládkách / Definition of the Method for Measurement of Bulk Materials Geometry on the Stockyards

Nešpor, Tomáš January 2014 (has links)
This thesis is concerning about measurement of bulk materials geometry on the stockyards. In the first part of the document is summarized basic allocation of stockyard types, stockyards architecture and methods of bulk materials stacking. Furthermore there are allocated particular stacking and recovering technologies of bulk materials on the stockyards. The experimental part of the thesis is concerning about introduction to measurement of bulk materials geometry and its state consequently selection and description of measurement devices intended to forenamed purpose. The experimental part of the thesis is dedicated to determination of algorithms for measured data processing on a combined stacker/reclaimer machine; consequently it is dedicated to software equipment of data gathering PLC system. At the last part of the thesis a description of designed input data simulation and visualization which displays gathered data by PLC system are stated.

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