Microscan MS-890, Руководство пользователя

Страница: 222 / 308

12-4
MS-890 Industrial Automation Scanner User Manual
Read Rate
Read Rate
You can access Read Rate from the Utilities menu.
To start or end a read rate test, right-click Read Rate and select Start or Stop .
To change from percent read rate to decodes per second, first end the read rate by selecting
Stop , then right-click select Decodes/Sec .
Read Rate by Serial Command
Enter Single Symbol Percent Test
Sending <Cp> instructs the scanner to transmit the percentage of decodes and any
scanned symbol data.
Enter Multisymbol Percent Test
Sending
<Cm>
instructs the scanner to transmit the percentage of scans decoded and
symbol data (if any) for multiple symbols.
Enter Single Symbol Read Rate Test
Sending <C> instructs the scanner to transmit the decodes per second and symbol data
(if any). The decode rate can vary dramatically due to the angle and location of the symbol
in relation to the scan line. This test is very useful in aligning and positioning the scanning
device during installation.
Enter Multisymbol Read Rate Test
Sending
<Cs>
instructs the scanner to transmit the decode rate and symbol data (if any)
for multiple symbols.
Enter Percent PDF Read Rate Test
Sending <CPDF> instructs the scanner to transmit the number of decodes per second on
the full PDF symbol. This test includes both capture and decode and translation time. Note
that the output format of the data is done as a running average of 750ms windows. This
means that you can remove the symbol from the view of the scanner and it will continue to
transmit some history of the symbol for a few outputs.
Enable PDF Information
Sending the
<a1>
check box will cause PDF417 symbology data to be prefaced with
information consisting of error correction level, number of rows, number of columns,
number of informative code words and the number of data characters.
This feature can be disabled by using the exit read rate command
<J>
.