Algorithm to convert programmable logic controller Ladder Logic Diagram models to Petri Net models

2015 ◽  
Author(s):  
Z. Aspar ◽  
Nasir Shaikh-Husin ◽  
M. Khalil-Hani
Keyword(s):  
Petri Net ◽  
Programmable Logic Controller ◽  
Programmable Logic ◽  
Logic Diagram ◽  
Ladder Logic

scholarly journals Algorithm to Convert Signal Interpreted Petri Net Models to Programmable Logic Controller Ladder Logic Diagram Models

2018 ◽  
Vol 10 (3) ◽  
pp. 905
Author(s):  
Z. Aspar ◽  
Nasir Shaikh-Husin ◽  
M. Khalil-Hani
Keyword(s):  
Petri Nets ◽  
Petri Net ◽  
Programmable Logic Controller ◽  
Conversion Process ◽  
Programmable Logic ◽  
Logic Diagram ◽  
Speed Up ◽  
High Level ◽  
Ladder Logic ◽  
Matrix Calculation

<span>Signal Interpreted Petri Nets (SIPN) modeling has been proposed as an alternative to Ladder Logic Diagram (LLD) modeling for programming complex programmable logic controllers (PLCs) due to its high level of abstraction and functionalities. This paper proposes an algorithm to efficiently convert existing SIPN models to their LLD models equivalences. In order to automate and speed up the conversion process, matrix calculation approach is used. A complex SIPN model was used to show that existing conversion technique must be expanded in order to cater for a more complex SIPN models.</span>

scholarly journals Four Junction Traffic Light Controller using PLC (S7-200)

2020 ◽  
Vol 1 (2) ◽  
pp. 21-29
Author(s):  
Nyan Phyo Aung ◽  
Mo Mo Myint Wai ◽  
Lwin Lwin Htay
Keyword(s):  
Control System ◽  
Road Traffic ◽  
Light Signal ◽  
Programmable Logic ◽  
Light Control ◽  
Traffic Light ◽  
Light System ◽  
Logic Diagram ◽  
Traffic Light Control ◽  
Ladder Logic

Advance of a road traffic light control system using Programmable Logic Controller is the principal of the system. This system can be divided into two parts which are hardware and software. The hardware part for this system is a model of four -way junction of a traffic light. The Red, Yellow and Green are installed at each lane to represent as a traffic light signal indicator. This switches and lamps are linked to PLC. The PLC receives signal which is coming from the inputs (sensor and switch) and drives the units (lamps or relays). In the system, Siemens s7-200 PLC is used as the main controller of the traffic light system. The Step7 Micro Win software can be developed the ladder logic diagram which can control the traffic light for proposed system. So, the traffic light system can be successfully controlled by PLC.

A Project-Based Approach to Teaching Programmable Logic Controller Course

2013 ◽  
Vol 765-767 ◽  
pp. 854-857
Author(s):  
Guo Yan Ren ◽  
Guo Mei Ren ◽  
Yi Tang
Keyword(s):  
Manufacturing Industry ◽  
Programmable Logic Controller ◽  
Programmable Logic ◽  
Programmable Logic Controllers ◽  
Sequential Control ◽  
Engineering Problems ◽  
Approach To Teaching ◽  
Engineering Projects ◽  
Ladder Logic ◽  
Logic Controllers

Sequential control using ladder logic, Programmable Logic Controllers (PLCs), and operator interfaces are commonly used in the manufacturing industry today. The introduction course of programmable logic controller is a course that needs a lot of practice. We present a project-based approach to teaching it by introducing real engineering projects into the process of theory teaching. The students show more enthusiastic during learning course and their abilities of solving engineering problems are greatly enhanced.

scholarly journals PLC based Multi-Floor Elevator Control System

2015 ◽  
Vol 4 (3) ◽  
pp. 202
Author(s):  
Shrey Gupta
Keyword(s):  
Control System ◽  
Programmable Logic Controller ◽  
Programmable Logic ◽  
Protective Devices ◽  
Anticlockwise Direction ◽  
To Come ◽  
Primary Focus ◽  
Ladder Logic

This paper presents programmable logic controller based elevator control system. Primary focus is on using programmable logic controller to build the elevator model. To control the motion of the elevator through various levels DC geared motor is used. Push buttons are used to give signal to the elevator to come to the desired floor, traversing up and down. Moreover DC relays are used as switches, not protective devices, to drive the motor in clockwise and anticlockwise direction. Ladder logic is used for the model implementation.

Programmable Logic Controller Program Design Method Research Based on PLC

2015 ◽  
Vol 713-715 ◽  
pp. 1281-1284
Author(s):  
Li Wei Wang
Keyword(s):  
Petri Net ◽  
Program Design ◽  
Design Method ◽  
Programmable Logic Controller ◽  
Programming Method ◽  
Engineering Method ◽  
Programmable Logic ◽  
Practical Engineering ◽  
Working Principle ◽  
Plc Programming

The working principle of Programmable Logic Controller (PLC) is introduced. Three kinds of PLC programming method, logic based method, function based method and Petri Net based method are emphasized. The example is also given. It also points out that function based PLC programming method is a practical engineering method.

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