
Drive PLC Developer Studio
Programming languages
4-1
l DDS EN 2.3
4 Programming languages
4.1 The standard IEC 61131-3
The standard IEC 61131-3 is an international standard for PLC programming languages.
The programming languages implemented in the DDS are in conformity with the
requirements of this standard.
According to this standard, a program consists of the following elements:
• Structures
• Organization units
• Global variables
• Local variables
• Configuration
• etc.
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