Denso Power Net Terminal BHT-7500 Spezifikationen PDF herunterladen (Seite 236)

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• If you specify a global variable in

realparameter when calling a user-defined

function, the user-defined function cannot update the value of the global variable.

This is because all realparameters are passed not by address but by value.

(So called "Call-by-value")

Syntax errors:

■ When defining a user function

NOTE

Before any call to a FUNCTION...END FUNCTION, you need to place def-

inition of the FUNCTION function or declaration of the FUNCTION by the

DECLARE statement in your source program.

A function name is defined globally. If more than one same function name

exists in a same project, therefore, a multiple symbol definition error will

occur when files will be linked. The same error will occur also if the

FUNCTION

...END FUNCTION defines a user-created function in a file to

be included and more than one file in a same project reads that included

file.

Error code and message Meaning

error 64: Function

redefinition

You made double definition to a same

function name.

error 71: Syntax error • funcname is an integer function

name, but

generalexpression

is a real type. (If funcname is a

real function name and

general-

expression

is an integer type,

then no error occurs.)

• stringlength is out of the

range.

•

stringlength is not an integer

constant.

• The function name is assigned a

value outside the function definition

block.

error 95: Incorrect use

of FUNCTION,

EXIT FUNC-

TION, or END

FUNCTION

• The EXIT FUNCTION statement is

specified outside the function defini-

tion block.

• The

END FUNCTION statement is

specified outside the function defini-

tion block.

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