CODESYS Forge - CODESYS Forge / Talk / Engineering 🇬🇧: Array of FB initialization

wpmccormick - 2018-02-14

Trying to figure out how to initialize an array of FB, where the FB itself is initialized with a STRUCT (through the FB_Init).

This works:

bar: STRUCT_BAR := (b1:=val1, b2:=val2); foo: FB_FOO(bar);

This does not:

bar1: STRUCT_BAR := (b1:=val1, b2:=val2); bar2: STRUCT_BAR := (b1:=val1, b2:=val2); foo: ARRAY[1 .. 2] OF FB_FOO[(bar1),(bar2)]; // or like FB_FOO[(bar1,bar2)] and other variations I could think of

The compile error would look something like:
[ERROR] C0032: Cannot convert type STRUCT_BAR to type POINTER TO FB_FOO

Thanks!
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Figured it out ...

METHOD FB_Init //of FB_FOO
VAR_INPUT
   bInitRetains: BOOL;
   bInCopyCode: BOOL;
   var: STRUCT_BAR; 
END_VAR
foo: ARRAY[1 .. 2] OF FB_FOO[(var:=bar1),(var:=bar2)];

josepmariarams - 2018-02-15

It seems that is not possible to pass diferent parameters to the array fb initialization.

You can, but, initiqlize internal variables as in structures. ( An fb is an structure too).

Se the post

l viewtopic.php?p=16838#p16838 l

Be healty!

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Array of FB initialization