CODESYS - the IEC 61131-3 automation software

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PostPosted: Fri Nov 16, 2018 10:44 am 
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Joined: Fri May 19, 2017 2:28 pm
Posts: 2
Hallo zusammen,

ich hab zwei Funktionen zur Bearbeitung von Strings aus der Standard.lib; die Funktion „LEN“ arbeitet wie erwartet, die Funktion „LEFT“ liefert keinen Ausgangsstring, siehe Anhang.
Hat jemand eine Idee, woran das liegen kann ?

PS: Codesys Version 2.3


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PostPosted: Fri Nov 16, 2018 10:53 am 
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Joined: Fri May 19, 2017 2:28 pm
Posts: 2
..Nachtrag zu meiner Frage,

natürlich hatte ich die Variable Groesse = 3 gesetzt, siehe neuen Anhang (leider war die im ersten screenshot noch 0, aber mit 3 funktioniert es auch nicht)


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