Welcome to the ClearSCADA Guide to Logic. This guide is designed to aid you in the creation and design of 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.
The ClearSCADA Guide to Logic comprises the following sections:
- Working with Logic Programs
- Characters for Use in Logic
- The Logic Tab
- ST Programs
- Ladder Diagrams
- Function Block Diagrams
- Sequential Function Charts
- Built-in Functions, Function Blocks, and Conversions
- ST and Function Block Libraries
- Logic Program Properties and Values
- Logic Data Types
- Using Actions Associated with Logic Programs
- Logic Specific Status Attributes.
In the sections listed above, you will find reference information that you can use to find out about the various Logic languages and how they are supported in ClearSCADA. The sections contain some detail about the programming of Logic programs, but are not designed to be a complete reference on the IEC 1131-3 standard. The purpose of this guide is to provide details about how you can use ClearSCADA to create the Logic programs you require on your system.