Denso Power Net Terminal BHT-7500 Especificaciones descargar pdf (Pagina 220)

100

101

211

■ Calling a user-defined function

FNfunctionname calls a user-defined function.

• The number of

realparameters should be equal to that of dummyparame-

ter

s, and the types of the corresponding variables used in those parameters

should be identical.

• 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

Error code and message Meaning

error 59: Incorrect use

of DEF FN...

EXIT DEF...END

DEF

• The EXIT DEF statement is speci-

fied outside the function definition

block.

• The

END DEF statement is specified

outside the function definition block.

error 60: Incomplete

control struc-

ture (DEF FN

...END DEF)

END

DEF is missing.

error 61: Cannot use DEF

FN in control

structure

The DEF FN...END DEF statement

is defined in other block-structured

statements such as FOR and IF state-

ment blocks.

error 64: Function

redefinition

You made double definition to a same

function name.

error 71: Syntax error • functionname is an integer func-

tion name, but

generalexpres-

sion

is a real type. (If

functionname is a real function

name and

generalexpression

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.

1 2 ... 215 216 217 218 219 220 221 222 223 224 225 ... 559 560

Comentarios a estos manuales

Sin comentarios

Denso Power Net Terminal BHT-7500 Especificaciones Pagina 220

Comentarios a estos manuales

Relacionado con productos y manuales para Lectores De Códigos De Barras Denso Power Net Terminal BHT-7500