Welcome to the ClearSCADA Guide to Logic. This guide will help you to create and design ST programs, Function Block Diagrams, Ladder Diagrams and Sequential Function Charts.
ClearSCADA supports 4 Logic languages that you can use to define relationships between values, control sequences, conversion calculations, and so on. These languages are part of the IEC 1131-3 Programming industrial control systems standard.
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Intended Audience
This guide is intended for engineers who are responsible for the design and creation of Logic programs (programs which define relationships between database items and system behavior). It is assumed that such engineers have an in-depth understanding of one or more of the Logic programming languages supported by ClearSCADA.
Document Scope
This guide explains how to use the ClearSCADA ViewX interface to create and edit Logic programs. ClearSCADA supports Ladder Logic, Structured Text, Function Block Diagrams and Sequential Function Charts, all of which are part of the IEC 1131-3 Programming industrial control systems standard.
This Guide is designed to explain the interfaces and includes examples of various Logic programs. It is not a reference guide to the IEC 1131-3 Programming languages.