DETERMINING THE TRANSMIT POINT FOR AV7000 APPLICATIONS
PRODUCT REFERENCE GUIDE
139
DETERMINING THE TRANSMIT POINT FOR AV7000
APPLICATIONS
A critical parameter to consider when identifying the transmit point for an AV7000 cam-
era system is the length of time the decode engine takes to process each image. This is
referred to in this document as processing time. There are several parameters that will
help you determine what this processing time should be for your system.
For the AV7000 processing time one of the things you need to consider is what type and
how many barcodes are being read.
• 100ms for the first 1D, 50ms each additional
• 200ms for the first 2D, 200ms each additional
So if your system is reading the following one Code 39, one I2 of 5, and 1 QR code, the
calculated processing time would be 350ms. You will later use this to calculate your
Dis-
tance to Transmit Point.
“Transmit Point For DM3610 or Dual Headed DM3610/DC3000 Application” on
page 139
“Transmit Point For RangeFinder Applications” on page 142
Transmit Point For DM3610 or Dual Headed DM3610/DC3000 Applica-
tion
When working with a DM3610 or Dual Head DM3610 tunnel the Transmit Point is mea-
sured from the Trigger Source, whether a photo eye or a read now signal from a PLC, to
the last scan point.
Processing time may need to be added to allow for the decode engine to complete
decoding all of the barcodes. To accommodate this you can calculate a Distance to
Transmit Point that provides for this processing time.
Trailing Edge
If the transmit point is from the Trailing Edge of the package, the Trailing Edge of the
package must pass the last camera scan line in the tunnel before the message is trans
-
mitted. The processing time must be set to allow for the decode engine to complete the
decoding of the bar codes.
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