Communication Format - Denso QK31-R User Manual

2d code scanner
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9.4

Communication Format

 Data transmission format
Select one of the following two data transmission formats.
Scanner
Header
ID
Scanner
Header
ID
(1) Header/Terminator
The following choices are available.
RS-232C interface, USB-COM interface
Header:
None (default), STX, or user-defined one
Terminator: CR (default), none, LF, CR/LF, ETX, or user-defined one
USB keyboard interface
Header:
None (default), TAB, ESC, ENTER or others
Terminator: None, TAB, ESC, ENTER (default) or others
For details, refer to Chapter 10.
(2) Scanner ID
A scanner ID is a unique serial number assigned to an individual scanner at the time of shipment. It consists of six
numerals.
(3) Prefix/Suffix
A prefix or suffix consists of up to eight ASCII characters (00h to FFh). You can set a prefix or suffix with the
configuration software (ScannerSetting_2D). (Default: No prefix or suffix)
(4) BCC
The Block Character Check (BCC) exclusive-ORs all bits at the same bit level in characters following the header and
preceding the terminator in a transmission block to generate a horizontal parity byte to be transferred in a binary code.
The BCC can be enabled or disabled. If no header is prefixed or the USB keyboard interface is selected, no BCC will
be transferred.
Code ID
Prefix
mark
n1
Code ID
Prefix
mark
n1
No. of digits
Code data
n2
n3
n4
No. of digits
Code data
n2
n3
n4
34
Suffix
Terminator
BCC
Suffix
Terminator
BCC

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