Function Block to convert Word to Bits error

[AlanJ]

I am attempting to write a function block that will take an input word and convert it into an array of Boolian values to access each bit in the word. Following are details:

 

In/Out Variables: Name:InputWord, In/Out: Input, Data Type: Word

Name:OutputBits, In/Out: In/Out, Data Type: ARRAY[0..15] OF BOOL

Internal Variables: Name: I, Data Type: Int

 

FOR i := 0 TO 15 DO

OutputBits := (InputWord AND (1 SHL i)) <> 0;

END_FOR;

 

I get a “)” is missing error. What am I doing wrong and how can I fix it?

[photovoltaic]

SHL needs opening and closing brackets immediately after it.

If I may suggest a much easier way to do this - make a union to break a WORD into a BOOL[16] and then simply write the WORD value to the Union.WORD.

Alternatively you can assign the same address to the WORD as the BOOL array has and the bits will reflect the WORD.

Edited September 20, 2024 by photovoltaic

[AlanJ]

Thanks so much!