Denso BHT-200QW Spezifikationen PDF herunterladen (Seite 342)

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code MARK I/O function

MARK$

Returns the bar code type and the number of digits of a read bar code.

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Syntax:

Syntax:Syntax:

Syntax:

MARK$

Description:

Description:Description:

Description:

MARK$ returns a 3-byte string which consists of the first one byte representing the bar

code type and the remaining two bytes indicating the number of digits of a read bar code.

• The first one byte of a returned value contains one of the following letters representing

code types:

Code type First one byte of a returned value

EAN-13 , UPC-A A

EAN-8 B

UPC-E C

ITF (Interleaved 2 of 5) I

STF (Standard 2 of 5) H

Codabar (NW-7) N

Code 39 M

Code 93 L

Code 128 K

EAN-128 W

• The remaining two bytes of a returned value indicate the number of digits of the bar

code in decimal notation.

• MARK$ returns a null string until bar code reading takes place first after start of the

program.

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