PLC programming using TwinCAT 3 tutorial – part 6b

Dear existing & future PLC software developers, I have published part 6b of my free PLC programming using TwinCAT 3 tutorial.

In this part we will continue our journey of the object oriented features of IEC 61131-3 and look into something called interfaces. Interfaces provide a layer of abstraction so that you can write code that is ignorant of unnecessary details. Interfaces aid you in designing more modular and robust software. With interfaces it’s possible to decouple direct dependencies between objects in your software.

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