A graphical method for structuring sequential processes , decomposing problems into defined steps and transitions.
A low-level, assembly-like textual language. While it was once common, it was deprecated in recent editions of the standard in favor of higher-level options. Key Structural Elements IEC 61131-3: Programming Industrial Automation ...
A high-level textual language similar to Pascal or C, ideal for complex algorithms and mathematical calculations . A graphical method for structuring sequential processes ,