Author: Seyedreza Fattahzadeh
Product Group : eBook
Format: PDF file
Number of pages:122
ISBN:978-0-9839005-7- 3
In this text, my primary focus is on to design and to implementation of a temperature controlling system based on complex Proportional Integral Derivative (PID) algorithm. Based on a defined project specification, we would see how SIMATIC S7-300 PLC hardware and its related developed control programs could be designed to implement a temperature control system that uses a close loop process control to maintain the temperature of a dyeing machine tank based on a predefined time temperature table. The main function of the project is to maintain a set point from 25°C to 100°C. In this case, since temperature varies with time, the temperature is the dynamic variable, which is also called the process variable (PV).
To ensure the operation of the controller by the system operator is easy, two other application programs will be developed to establish communication between two types of HMI devices: a typical HMI panel can be installed in a remote location, and a PC-based one. In this case, the operator can either use the HMI device or his PC's monitor to check the closed looped system parameters (such as SP, PV (duration of time since system is started), change the operation of the system from Automatic to Manual or vice versa, or change/edit content of each time temperature tables etc.
Chapter 1
Abstract,
PLC control method
Process control basics
What is the definition of a ‘PID control’?
A typical PLC control method
Application of a typical PanelMaster graphical display
Defining project specification and solution
Operating the system in automatic mode
Design and implementation of the controller's hardware
Developing the main control software and HMI programs and data settings
Chapter 2 – explanation of the main control program
Human Machine Interface (HMI) device
Steps to take to design a HMI application program
How t use PID.MCP; a WinCC-based application software
Question and answers related to this project