Designing SCADA application software


Designing SCADA application software


Designing SCADA application software
Designing SCADA application software

    Automation systems, often referred to as SCADA systems, involve programming at several levels; these systems include computer type field controllers that monitor and control plant equipment such as conveyor systems, pumps, and user workstations that allow the user to monitor and control the equipment through color graphic displays. All of the components of these systems are integrated through a network, such as Ethernet for fast communications. This book provides a practical guide to developing the application software for all aspects of the automation system, from the field controllers to the user interface workstations. The focus of the book is to not only provide practical methods for designing and developing the software, but also to develop a complete set of software documentation. Providing tested examples and proceducres, this book will be indespensible to all engineers managing automation systems.

PLC Programming manual


Table of Contents

1. Introduction


1.1 SCADA: Convergence of Evolving Technologies

1.2 Basics of SCADA Signal Processing

1.3 Defining the Scope of SCADA Software

1.4 Use of Generalized Terminology

1.5 The Need for Programming Standards

1.6 The Importance of Software Documentation

1.7 Purpose and Overview of This Book

2. The Elements of SCADA Software


2.1 Understanding the Elements of SCADA Software

2.2 Typical SCADA System Architecture

2.3 Sample Application: WTP SCADA System

2.4 Getting the Most from Field Data

3. Practical Procedures for SCADA Software Development


3.1 Life Cycle of a SCADA Project

3.2 Identifying Process Area Field Signals

3.3 Creating and Documenting Application Databases

3.4 Defining and Documenting the Process Controller Operations

3.5 Designing and Developing the SCADA Application Software

3.6 System Integration and Checkout

3.7 User Operations Reference Manual

4. Documentation for SCADA Systems


4.1 SCADA Software Documentation

4.2 Database Reference

4.3 Process Control Logic Descriptions

4.4 Controller Application Program Listings

4.5 SCADA Workstation Application Software Reference

4.6 SCADA User Operations Reference

5. Tagnames and Signal Naming Conventions


5.1 Original Signal Tagnames

5.2 Purpose of Standardized Tagnames

5.3 Constructing Tagnames with Phrases

5.4 Tagname and Signal Naming Convention Structure

5.5 Tagname Fragment Dictionaries

5.6 Illustration of Tagname Application

6. Developing the Application Program Databases


6.1 Review of Data Types and Databases

6.2 Using Spreadsheets to Create Points Lists

6.3 Developing the Controller Database

6.4 Developing the SCADA Workstation Database

7. Process Control Logic Descriptions


7.1 Purpose of PCLDs

7.2 Structure of PCLDs

7.3 System Control Strategy Overview

7.4 Facilities and Parameters

7.5 Control Logic Descriptions

7.6 Special Considerations

7.7 Sample PLCD for Pump Station

8. User Operations Reference Manual


8.1 Structure and Purpose of User Reference Manual

8.2 System Overview and Introduction

8.3 System Graphic Displays

8.4 Process Graphic Displays

8.5 Historical Reports and Trend Displays

8.6 Special Operating Procedures

9. Guidelines for Controller Application Programming


9.1 Identifying the Controller Processes

9.2 Creating the Application Databases

9.3 Tasks, Programs and Program Structures

9.4 Programming Guidelines and Style

9.5 Some Final Notes on Programming

10. Guidelines for Workstation Application Programming


10.1 Identifying the Process Areas

10.2 Configuring the HMI Application

10.3 Developing the Process and Historical Databases

10.4 Design and Development of Process Graphic Displays

10.5 Configuration of I/O Server

11. System Integration, Commissioning and Checkout


11.1 In-House Factory Testing and Checkout

11.2 On-Site Field I/O Checkout

11.3 Commissioning and Site Acceptance Testing

12. Sample Project – Applying the Principles


12.1 Overview of Project

12.2 Identify Process Area Field Signals

12.3 Create and Document Application Databases

12.4 Defining and Documenting Controller Operations

12.5 Develop Process Controller Application Software

12.6 Develop SCADA Workstation Application Software

12.7 Commission the Completed System

12.8 Finalize Software Documentation

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