Datalogic AV500, Руководство по продукции

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OPERATING MODE
PRODUCT REFERENCE GUIDE
99
C
ONTINUOUS
M
ODE
Continuous Mode Settings
Code Filter
Select Enabled or Disabled from the drop ‐ down. If enabled code filter options become
available. The AV500 offers several different conditions associated to the Continuous Mode
Settings. These different options allows the user to configure the AV500 to accommodate Such
conditions as reading unique bar code data, restrict reading the same bar code by time (ms), or
by distance (mm).
Filter Type
Select one of the following from the drop ‐ down:
•
New Unique Code:
when selected will read a bar code. The AV500 stores the data in a
memory location and transmits this data to the host. It will then continue to look for bar code
data. If the bar code data read by the AV500 matches the data that is stored in memory, the
AV500 will not transmit it a second time to the host. If the bar code data is different, the
AV500 will replace the memory location with the new bar code data and transmit the new
data to the host.
•
Time - First Code/Last Code:
Since the AV500 is an area camera it will acquire images at
32 frames per second. The first and last option is in respect to the bar code images found.
When the First option is selected the AV500 will use the first image with a decoded bar code
to start the timer. For the selection without a tachometer or the starting point for the mm to
transmit in a system with a tachometer. The AV500 will read a bar code and place the data
into a memory location. It will then start an internal timer. When the AV500 reads another
bar code it will check the new bar code data with the previous data stored in memory. If the
new bar code data matches the previous data the AV500 will check the timer. If the time
appointed has not been exceeded, and the data is the same, the AV500 will not transmit the