in the declaration of the FB [...] 'Data type FB [...] _BLOCK FB_I1 VAR_INPUT i

; END_VAR Lower index [...] ..4] OF INT; END_VAR 1 [...] ..4, 5..6] OF INT; END

the call of the FB [...] 256 . The method FB [...] 2 : POU_ex; END

__XWORD ; END [...] FUNCTION_BLOCK FB [...] INT; END_VAR pi

_SPECIAL; END_VAR rspeA REF [...] pointer Example: fbDoIt(riInput:=iValue); Instead of: fb

FUNCTION_BLOCK FB [...] Number2: INT; END_VAR pi

Method: FB_Init , FB_Reinit , FB [...] should not be changed. FB

: PROGRAM PLC_PRG VAR fb : FB; END [...] _BLOCK FB2 VAR END

inst0 : FB1; END [...] inst1 : FB2; END [...] inst2 : FB1; END

inst : FB; END_VAR FUNCTION_BLOCK FB EXTENDS FB VAR END