102 Journal on Processing and Energy in Agriculture 20 (2016) 2

Biblid: 1821-4487 (2016) 20; 2; p 102-105 Expert Paper UDK: 005.53 Stručni rad

COMPUTER AIDED DESIGN WITH EPLAN ELECTRIC P8 EDUCATIONAL

PROJEKTOVANJE PRIMENOM RAČUNARA KROZ PRIKAZ PROGRAMSKOG PAKETA EPLAN ELECTIC P8 EDUCATIONAL

Dragan MATIĆ*, Duško LUKAČ**, Vladimir BUGARSKI*, Filip KULIĆ*, Perica NIKOLIĆ* * University of Novi Sad, Faculty of technical sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia

**Rhenish faculty of applied sciences, Vogelsanger Str. 295, 50825 Köln, Germany email: dmatic@uns.ac.rs

ABSTRACT This paper presents design of electrical schematics and technical drawings by Eplan Electric P8 Educational. It is contemporary

software tool for computer added design (CAD) of control cabinets. Technical documentation is divided into schematics and reports. Schematics are based on the graphical symbols and reports are given in tabular or graphical form. Graphical symbols are presented with standardized symbols or device macros. Reports can be generated automatically based on schematic. Numerous types of reports are supported cable and terminal strip overview, cable and terminal diagram, PLC overview and diagram. Major national and international standards are supported. For efficient and quality schematic design users are advised to get proper training through Eplan Certified Student (ECS) or Eplan Certified Technician (ECT) programs.

Key words: project, schematic, Eplan.

REZIME Projektovanje sistema automatskog upravljanja obuhvata nekoliko ključnih aktivnosti. Neke od njih su: analiza tehnološkog

postupka, izbor merno-regulacione opreme (MRO) i izrada tehničkog rešenja. Ove aktivnosti su realizovane kroz odgovarajuću projektnu dokumentaciju. U ovom radu biće analizirano projektovanje upravljačkog sistema primenom programskog paketa Eplan Electric P8 Educational kao i postupak sertifikacije korisnika. Savremeni upravljački sistemi u procesnoj industriji su bazirani na programabilnim logičkim kontrolerima (PLC). Kako bi se ostvarila interakcija PLC-a sa posmatranim procesom neophodno je obezbediti povezivanje sa MRO kao i napajanje komponenata upravljačkog sistema. Ove veze predstavljaju se šemama električnog povezivanja. Jedan od najzastupljenijih programskih paketa za izradu šema električnog povezivanja je Eplan Electric P8. Tehnička dokumentacija se može podeliti u šematsku, gde su električne veze između elemenata predstavljene standardizovanim grafičkim simbolima i izveštaje, gde su informacije predstavljene u vidu tabelarnih formi. Generisanje izveštaja je automatizovan proces. Podržan je objektno orijentisan pristup gde se sve komponente mogu definisati pre same izrade. Komponentama se pristupa kroz odgovarajuće navigatore. Standardizovane grafičke komponente su date u formi simbola i makroa. Bazi makroa moguće je pristupiti preko Data Portal web aplikacije. Ovu bazu makroa obezbeđuju sami proizvođači opreme. Ukoliko makro nije dostupan moguće ga je kreirati na jednostavan način. Takođe je moguće dati prikaz materijala za izradu upravljačkih ormana. Ažuriranje dokumentacije i praćenje revizija je jednostavno. U koliko je projektant kvalitetno obučen skraćuje se proces projektovanja, a izrađena dokumentacija je visokog kvaliteta. Iz ovog razloga neophodno je izvršiti sertifikaciju korisnika koja kroz kurseve Eplan Certified Student (ECS) i Eplan Certified Technician (ECT).

Ključne reči: projekat, šema, Eplan.

INTRODUCTION The main purpose of the project in respect of the

organizational perspective, is to generate value for base organization (Erling, 2016). The traditional view of project success is associated with fulfilling time, cost and quality objectives (the iron triangle), (Carvalho et al., 2015). To achieve this goals computer aided design (CAD) software are helpful (Sang et al., 2016).

It is a priority to shorter production time needed for design of technical documentation and to reduce errors. Technical documentation of control system is based on several foundations: knowledge of system technology, specifications of sensors and actuators and technical design of control cabinets. Technology describes principle of production with process parameters like pressure, temperature, flow, level, etc. Based on the technological parameters and fluids nature specification of sensors and actuators is done. This equipment is installed in the field (Matić et al., 2015).

Modern control system (Nikolić et al., 2014), (Buraski et al., 2011) is based on PLC. PLC is organized in racks, has a central processing unit (CPU) and digital/analog input/output modules (I/O). PLC is installed in the control cabinet with auxiliary

equipment. All electrical equipment need to be powered, sensors need to be connected on the digital/analog inputs and actuators need to be connected to digital/analog outputs of the PLC. This connections are made by wire or cable. Before assembling a control cabinet and connecting PLC to filed equipment schematic must be made. Schematic is part of project documentation and it is done according to valid standard. It is created by technical staff aided by software tool. One of the most successful software tools is Eplan Electric P8 discussed in this paper.

MATERIAL This paper gives overview of Eplan Electric P8 Educational

(Gischel, 2013). Educational license is for non-commercial use only. This software tool is used for design of electrical schematic. The paper is a short tutorial and it is informative. Projects are created in compliance with actual IEC and SRPS standards. This paper is focus on Eplan Certified Student (ECS) program.

DISCUSSION Eplan Electric P8 runs on Windows operating system. When

Eplan is started user can select scope of menu which defines

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complexity of the workspace, fig.1. Expert modus provides access to most functions.

Fig. 1. Select scope of menu

The workspace has drop done menus and icons for function selection. The workspace can be exported and easily imported on other working station. The page area is were schematics are designed. Schematic is organized as a project. To create a new project select function Project/New as shown on fig. 2.

Fig. 2. Create a new project

Once the project is created schematic can be designed. Created project is based on chosen template. Schematic is based on standardized symbol data base. The symbol is inserted on the page by function Insert. The symbols are coded by short name and number. For example to insert circuit breaker into the page from symbol list user must select a graphical symbol with identification number 98 or name FA1. Device is referenced with device tag (DT) which takes alphanumeric value. The DT is unique for particular device. Connection points are numbered according to the part layout. Symbols are connected according to design by auto connect function. This is a big help to user as reduces a lot of manual work. Default type of connection is a wire. Wires can be numbered and labeled. Equipment can be powered by different voltage levels and types.

Eplan supports potential definition where user can named and colored different potentials. This makes schematic readable and reduces errors.

Fig. 3. Insert a circuit breaker into the page

Piece of schematic can be used through a macro. There are three types of macros divided by complexity: symbol, window and page macro. PLC modules are used with macros. Page macro can be placed on the page by function Page/Page macro/Insert. Page macro has extension emp. In the figure 4, selection of page macro is shown. Page macro presents one byte or eight digital inputs of a PLC I/O card with belonging schematic. In the fig. 5 is given overview of the page macro for power supply of PLC rack.

Fig. 4. Page macro of eight digital inputs I/O module

Fig. 5. Power supply of PLC rack

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To access predefined and placed devices and parts navigators are used. There are several types of navigators: Page, Device, Cable, PLC, etc. It is possible to define in advance all devices to be used in the project. To place predefined devices on the page device navigator is used. Devices are placed by drag and drop function. Project can be backup by using function Back up/Project. Projects name and its location are stated in the fields. There are several backup methods: save additionally, file of external editing and archive. Location of backup file can be selected, fig.6. Project is backup as one file with extension zw1. To access all project data, project management tool is used, fig 7. Through project management can be accessed to technical data, end user data, manufacturer data, etc.

A very powerful tool are reports. The reports can be generated automatically based on completed schematics.

There are big number of different reports type, here are listed a few: terminal and cable overview, terminal and cable diagram, PLC overview and diagram, etc., fig. 8. Report presents information in tabular and graphical form. In the fig. 9 is shown cable overview report. This report is based on the form TC F10 003. The cable overview is generated on the schematic. In the report are given: cable DT, source and target of the cable, cable type, number of conductors per cable, cross section and function text.

Fig. 9. Cable overview report

Fig. 7. Project management

Fig. 6. Back up projects

Fig. 8. Project reports and associated form types

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To access part data base Data Portal add-on is used. Data Portal is supported by parts manufacturers. Design of control cabinet in the sense of part placement on the mounting panel can be done by add-on Pro Panel, fig. 10.

Fig.10. Design of control cabinet

CONCLUSION This paper presents some basic advantages of Eplan Electric

P8 Educational. It is very powerful tool which shorts production time and partially atomizes a design process. Functions like reports, macros and parts make design process pleasant. For more efficient work users can be trained systematically through the ECS program. A trained user can produce schematics of high quality for a short period of time. Reports reduce manual work and eliminate errors. Macros are useful for repetition of schematic segments and device modules. Extensions like Data Portal and Pro Panel provide help for cabinet assembly. Quality and updated documentation shorter production time, expenses and stress. This advantages are valuable through the processes of design, assembly and operation of control cabinets.

ACKNOWLEDGEMENT: This work is part of the project “Sušenje voća i povrća iz organske proizvodnje kombinovanom tehnologijom”, the grant number: TR-31058, financed by “Ministarstvo prosvete, nauke i tehnološkog razvoja”, Rep. of Serbia.

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Carvalho, M., M., Patah, L., A., Bido, D., S. (2015). Project management and its effects on project success: Cross-country and cross-industry comparisons. International Journal of Project Management, 33, 1509–1522.

Erling, A., S. (2016). Do project managers have different perspectives on project management? International Journal of Project Management, 34, 58–65.

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Nikolić, P., Bugarski, V., Matić, D., Kulić, F. (2014). Modern supervisory control system in a pneumatic transport system: Practical realization. Journal on Processing and Energy in Agriculture (former PTEP), 18 (2), 91-93.

Matić, D., Bugarski, V., Kamenko, I., Nikolić, P. (2015). Automatic control of the air temperature for the fruit drier chamber. Journal on Processing and Energy in Agriculture (former PTEP), 19 (2), 80-82.

Sang, M., J., Jae H., L., Gyeong J., H., Hyo W., S., (2016). Automatic CAD model retrieval based on design documents using semantic processing and rule processing. Computers in Industry, 77, 29-47.

Received: 11. 03. 2016. Accepted: 07. 04. 2016.