Denso GT10Q-SR Operator's Manual page 20

2d code handy scanner
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Setting the communications parameters
The scanner communicates with the connected PC in accordance with the RS-232C
asynchronous serial interface.
(1) Transmission speed
You may select the transmission speed from six choices ranging from 4,800 to 115,200 bps.
(Default: 38,400 bps)
(2) Characters
Characters that the scanner transfers are all ASCII codes except when binary codes are
specified. The character format may consist of the items listed below.
NOTE: When data contains binary data or 2-byte codes, selecting "7 bits" for the data bits
transfers such 2-byte data with most significant bits trimmed.
Start bits
Data bits
Parity
Stop bits
(3) Transmission format
The transmission format can be selected from the following two options:
Code
Header
mark
Header
Prefix
Header:
Terminator:
Prefix/Suffix: Each of a prefix and suffix consists of up to eight ASCII characters (00h to
BCC:
1 bit (Fixed)
7 bits or 8 bits
Even, odd, or none
1 bit or 2 bits
Number of digits
Prefix
n1
n2
Number of digits
Code
mark
n1
n2
None or STX
CR, LF, CR/LF, or ETX
FFh). The length can be set in the Setting Software.
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, no BCC will be transferred.
Code
Suffi
n3
n4
data
Code
Suffi
n3
n4
data
7
Terminator
x
Terminator
x
BCC
BCC

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