Advantech ADAM-5550KW Series, Руководство пользователя

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Chapter 1 System Overview
ADAM-5550KW Series User’s Manual 1- 5
1.2.6 Process IEC 61131-3 standard with rich development
environment
The standard IEC 61131-3 has been established to standardize
the multiple languages, sets of instructions and different concepts
existing in the field of automation systems. The great variety of
control concepts has led to an incompatibility between the
different control platforms and manufacturers. The result was a
great effort to be made for training, hardware and software
investments.
IEC 61131-3 defines the syntax of 5 programming languages,
defines a certain representation and describes the different
elements which can be used in the language.
The programming languages can be differentiated by the
physical appearance into 2 textual languages and 3 graphical
languages.
Textual Languages Graphical Languages
Instruction List ( IL )
Structured Text ( ST )
Function Block Diagram ( FBD )
Ladder Diagram ( LD )
Sequential Function Chart ( SFC )
Table 1-1 Programming Languages Table
1.2.7 Cross-Language Programming
For some project integrate and scalable issues, cross-language
can help you to choose the different language for your project. For
example, you can use ladder (LD) on the simple I/O module
control or simple logical expression and use Function Block (FB)
on process control for more advanced expression and use
Sequential Function Chart (SFC) for system configuration in
hybrid control system such as Water Treatment.