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4. Generating executable code
A detailed, precise specification model, described using a declarative language based on a well-defined set of concepts, is not fundamentally different from a program written using a graphical programming language such as LabView's G language (which is also a declarative language). Under these conditions, the only real difference lies in the fact that, in the first case, the choice of imperative language used is open, whereas in the second case, this choice is imposed and the operation transparent to the user.
4.1 Transcription principle
Imperative languages, such as control streams, are designed to call specific functions. In other words, their function is to react sequentially to events.
So that transcription rules can be established,...
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Generating executable code
Conclusion
Bibliography
References
Standards
- Établissement des diagrammes fonctionnels pour systèmes de commande (première édition) - CEI 848 - 1988
- Langage de spécification Grafcet pour diagrammes fonctionnels en séquence - CEI 60848 - fév. 2002
- Programmable logic controllers – Part 3: programming languages - CEI 61131-3 - janv. 2003
- Function blocks for industrial process measurement and control systems – Part 1: architecture - IEC/PAS 61499-1 - sept....
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