Laser Control - Symbol LS 1220 Product Reference Manual

Laser Control

Trigger Mode
In all modes, the only command that can be sent when the laser is on is the Turn Laser Off
command. Select one of the following options:
• Level Trigger - A trigger pull or external switch closure activates the laser and
decode processing. The laser remains on and decode processing continues until
a trigger release, a valid decode, or the Laser On Time-out is reached.
• Host - The host sends a Laser On command. The laser remains on and decode
processing continues until a good decode, the Laser On Time-out is reached, or
the host sends a Laser Off command. External trigger acts as a Level trigger in this
mode.
• Pulse - A trigger pull activates the laser and decoding processing. The laser
remains on and decode processing continues until a valid decode or the Laser On
Time-out is reached.
• Constant Scan & Report - Laser is always on and decoding. This option is not
recommended when programming the scanner with bar code menus.
• Next New Code - The LS 1220 decodes and transmit information, then waits until
a new code is detected before transmitting again.
• Continuous Level - The laser is always on. Decode processing begins with a
trigger pull and continues until a trigger release, or the Laser On Time-out is
reached.
• Continuous Pulse - The laser is always on. Decode processing begins with a
trigger pull and continues until the Laser On Time-out is reached.
Laser On Time-out
The maximum time the laser remains on or decode processing continues during a trigger
pull. Programmable in 0.5 second increments from 0.5 to 4.0 seconds.
Laser Off Time-out
The minimum time between decodes of the same symbol when in Constant Scan and
Report mode. Programmable in 0.5 second increments from 0.0 to 3.5 seconds.
Programming
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