Sample03 of my Blog Post: 'IEC 61131-3: abstract FB vs. Interface'
https://stefanhenneken.net/2020/12/13/iec-61131-3-abstract-fb-vs-interface/
Sample03 of my Blog Post: 'IEC 61131-3: abstract FB vs. Interface'
https://stefanhenneken.net/2020/12/13/iec-61131-3-abstract-fb-vs-interface/
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