_BLOCK FB_A VAR_INPUT END_VAR VAR_OUTPUT END_VAR VAR iA : INT; END

); ... END_VAR FOR ui:=0 [...] ... END_FOR 程序

); ... END_VAR FOR ui:=0 [...] ... END_FOR 程序

); ... END_VAR FOR ui:=0 [...] ... END_FOR 程序

POU : STRING; END

: INT; END

2 : UINT := -1; END

; END_VAR by

; END_VAR xTemp1 := x

Result : BOOL; END_VAR x