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PLC Object Oriented Programming, WHY?

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IEC Procedural vs Object Oriented Programming

Around 10 years ago object oriented programming feature added to the standard IEC 61131-3 programming languages for industrial automation controllers. But you will find very few PLC producers to support OOP. In this post I want to analyze what benefits OOP can provide for me in details and answer this question that is it worth to challenge with PLC object oriented programming complexities or not?