Control Design eNews - Aug 1st, 2025
The case for structured text, ladder diagrams for PLC programming, and more
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August 1, 2025
The roles of sequential function chart (SFC) and function block diagram (FBD) in IEC 61131-3 languages
Why diverse programming languages optimize industrial machine control.
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The case for structured text: how to address complex data handling in PLC programming
IEC 61131-3 programming language choices vary from application to application and from continent to continent.
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Ladder diagram remains first choice for PLC programming, but structured text gains ground
How to balance IEC 61131-3 language decisions with OEM, operator and maintenance-team skill sets.
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IEC 61131-3 portability: is it the program or the programmer?
How effective has standardized programming been for PLCs?
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Terminal blocks: small component with big cabinet impact
Panels accommodate shrinking component footprint of terminal blocks.
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