Denso Power Net Terminal BHT-7500 Specifikace stáhnout pdf (Strana 198)

189

•

filename is the name of an FN3 function. The extension of the file names is

fixed to .FN3. (For the FN3 functions, refer to Chapter 16, "Extended Functions"

or the "BHT-BASIC Extension Library Manual.")

•

functionnumber is the function number of an FN3 specified by "[drive-

name:]filename

•

data is a variable for the function number of the FN3 (that is, it is used as an

argument to the FN3 function).

• When specifying an array to data, add a pair of parentheses containing nothing

as shown below.

Example:

CALL "_xxx.FN3" 1 DATA ()

• When calling a function (specified by functionnumber) that returns a string

variable:

BHT-5000/BHT-6000/BHT-6500

Reserve a storage area for a returned string variable by using a variable declara-

tion statement (

DIM, COMMON, or DEFREG). (If the string length is omitted in the

variable declaration statement, the default in the statement will take effect.) And

assign arbitrary data of the string length required for a return value to the variable.

If the string length of a returned value is greater than the assigned string length, a

run-time error will result.

(Example 1) If a return value is a fixed-length string, e.g. 8-character length:

DIM OUTPUT$[8]

’Reserves a storage area of 8 characters.

OUTPUT$=" "

’Assigns 8 spaces.

(Example 2) If a return value is a variable-length string of a maximum of N char-

acters:

DIM OUTPUT$[N]

’Reserves a storage area of a max. of N chars.

OUTPUT$=" ... "

’Assigns N spaces.

OUTPUT$=""

’or assign

FOR I%=1 TO N

’a max. of N chars of spaces

OUTPUT$=OUTPUT$+""

’to the variable by loop.

NEXT I%

BHT-7000/BHT-7500

Reserve a storage area for a returned string variable by using a variable declara-

tion statement (

DIM, COMMON, or DEFREG). (If the string length is omitted in the

variable declaration statement, the default in the statement will take effect.)

Unlike the BHT-5000/BHT-6000/BHT-6500, the BHT-7000/BHT-7500 does not

require to assign arbitrary data of the string length required for a return value to

the variable.

If the string length of a returned value is greater than the string length reserved by

a variable declaration statement, a run-time error will result.

(Example 1) If a return value is a fixed-length string, e.g. 8-character length:

DIM OUTPUT$[8]

’Reserves a storage area of 8 characters.

(Example 2) If a return value is a variable-length string of a maximum of N char-

acters:

DIM OUTPUT$[N]

’Reserves a storage area of a max. of N chars.

1 2 ... 193 194 195 196 197 198 199 200 201 202 203 ... 559 560

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