function block variable [...] '<input variable [...] local variable

variable is declared [...] of name '<variable name [...] the variable

, persistent variables [...] . Variable '<variable name [...] persistent variable lists

in the declaration of a function [...] above the declaration of the input or output variables

in the variables declaration [...] . It recognizes such variables [...] variables in a special

Variable List Note Variable declaration

The variable is declared [...] _EXTERNAL <variable name> Possible

_INPUT declarations in functions [...] variables are unknown [...] above the declaration part

,UPDATE] Variable := <variable [...] ,UPDATE] Variable := <variable [...] of the module declaration . .

, declare the return variable for the type