Communication Format - Denso QB30-SR User Manual

12.4 Communication Format

 Data transmission format
Select one of the following two data transmission formats.
Scanner Code ID
Header
ID mark
Scanner
Header Prefix
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 11.
(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 (QB Setting). (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.
No. of digits
Prefix
n1 n2 n3
No. of digits
Code ID
mark
n1 n2 n3
Terminato
Code data Suffix
n4
Terminato
Code data Suffix
n4
54
BCC
r
BCC
r