Read Modes - Opticon NLV-5201 User Manual

8.1.2

Read Modes

Read modes includes "single read", "multiple read 1", "multiple read 2" and "
Item
Single Read
Multiple Read 1
Multiple Read 2
Continues Read
● Single Read
The scanner starts reading after a trigger until a barcode is successfully decoded or until the read
time expires. (See 6.1.4)
● Multiple Read 1 (Do not read the same data)
The scanner starts reading after a trigger and stays reading even after a barcode is successfully
decoded, until the read time expires. To prevent that a barcode is read twice, the scanner saves the
read barcodes in memory and checks if it has been read before. The list in memory is 20 barcodes
long so after 20 different barcodes, the same barcode can be read again.
If there is more than one code within the read area, as in the following figure, this read mode is
helpful to prevent reading the same code twice.
Example: Read multiple codes continuously with a single trigger.
To set the number of codes to be saved in the memory to prevent that a barcode is read twice, use
the following command.
Item
Multiple Read 1
Number of codes
not read the same
data
NLV-5201 User's Manual
1st
Command
S0 Single read in a single trigger
Multiple read in a single trigger, the scanner saves
[D3P
the read data in memory to not read the same data.
Multiple read in a single trigger, the scanner read the
S1
same data.
Reads continuously even with the same code. Limit
S2
to testing etc. to operate.
To prevent that a barcode is read twice, the scanner saves
the read barcodes in memory and checks if it has been read
before.
Command
[D3P Qa Qb Qc
Description
Description
Set the number of codes to be
saved in the memory to prevent
that a barcode is read twice.
Set; a:100 digits / b:10 digits /
c:1 digit
Chapter-8
Read Options
modes.
continues read"
Default

Default
Effective Range
Default: 20
Effective range:
1 to 200
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