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2-7
Installation
Conveyor Applications
Conveyor applications require that the conveyor velocity be set to optimize the scanner’s
ability to read symbols. The orientation of the symbol with respect to the conveyor direction
is another consideration. Figure 2-4 on page 2-7 illustrates the relationship of the conveyor
velocity with respect to a symbol positioned perpendicular to the conveyor direction and
Figure 2-5 on page 2-8 illustrates the relationship of the conveyor velocity with respect to a
symbol positioned parallel to the conveyor direction.
Symbol is Perpendicular to Conveyor Movement
With the symbol perpendicular to the conveyor belt direction (Picket Fence presentation)
the relationship is:
V = (R x (F-W) / N
Where:
V = Velocity of the Conveyor (inches/second)
R = Scan Rate (35 scans/second)
F = Field Width of Scan Beam
W = Symbol Width (inches)
N = Number of scans over symbol (minimum of 10 scans)
Figure 2-4. Symbol Perpendicular To Conveyor Movement
Scan Beam
Direction of Con
veyor P
erpendicular to Symbol
W=Symbol Width
F=Field Width
Содержание LS 1220
Страница 2: ...LS 1220 Product Reference Guide ...
Страница 3: ......
Страница 4: ...LS 1220 Product Reference Guide 70 12072 03 Revision A January 2003 ...
Страница 23: ...1 8 LS 1220 Product Reference Guide Figure 1 3 LS 1220 Connector ...
Страница 33: ...2 10 LS 1220 Product Reference Guide ...
Страница 71: ...8 14 LS 1220 Product Reference Guide Figure 8 1 Hardware Handshaking ...
Страница 97: ...9 6 LS 1220 Product Reference Guide Code Lengths cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Страница 105: ...9 14 LS 1220 Product Reference Guide Prefix Suffix Values cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Страница 108: ...9 17 Parameter Menus UPC Security Zone cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Страница 114: ...9 23 Parameter Menus Parity Set the type of parity for RS 232C transmission ODD EVEN MARK SPACE NONE ...
Страница 118: ...9 27 Parameter Menus ASCII Data Format Select either 7 bit or 8 bit ASCII format for RS 232C communications 7 BIT 8 BIT ...
Страница 120: ...9 29 Parameter Menus Intercharacter Delay cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
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