Denso Power Net Terminal BHT-103 Dokumentacja Pobierz pdf (Strona 365)

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Syntax:

Syntax 1 (Changing the value of a terminator):

ETX$=stringexpression

Syntax 2 (Returning the current value of a terminator):

ETX$

Parameter:

stringexpression

A string expression which returns a single-byte character.

Description:

■ Syntax 1

ETX$ modifies the value of a terminator (one of the text control characters) which

indicates the end of a data text in the BHT-protocol when the data file is transmitted

by an

XFILE statement. (For the BHT-protocol, refer to the BHT User’s Manual.)

•

ETX$ is called a protocol function.

• The initial value of a terminator (ETX) is 03h.

■ Syntax 2

ETX$ returns the current value of a terminator.

Run-time errors:

Reference:

End of TeXt I/O function

ETX$

Modifies the value of a terminator (ETX) for the BHT-protocol; also returns the

current value of a terminator.

Error code Meaning

05h

Parameter out of the range

(

stringexpression is a null string.)

0Fh

String length out of the range

(

stringexpression is more than a single byte.)

Statements:

OPEN "COM:" and XFILE

Functions:

SOH$ and STX$

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