Configuration Of The Reading Gate Control (Trigger) - Leuze electronic LSIS 222 Technical Description

Configuration using configuration codes
7.2

Configuration of the reading gate control (trigger)

Multiple trigger modes are available for controlling the reading gate (start/stop reading):
• Manual/serial trigger mode
(factory setting for RS 232 and USB COM port)
With manual/serial trigger mode, the reading gate opens if the trigger button is
pressed, the trigger input is activated by applying a high signal, or if the
<SYN>T<CR> read start command is sent to the LSIS 22x via the serial interface.
The reading gate closes if a code is read successfully, the trigger button released,
the trigger input deactivated by removing the high signal, or if the <SYN>U<CR>
read stop command is sent to the LSIS 22x via the serial interface.
With serial trigger (trigger commands via the serial interface), a read time-out time
can optionally be set, after which the reading gate is closed if no code was read.
• Presentation mode
In presentation mode, the LSIS 22x is set to permanent reading for ambient light.
The reading gate is continuously open. If a change in the image area is detected, the
LSIS 22x first tries to read a code. If this is not successful, the intensity of the LED
illumination is continuously increased until a code is read. Following the successful
reading of a code, the LED illumination is switched off again after a few seconds.
• Streaming presentation mode
(factory setting for USB keyboard emulation)
In streaming presentation mode, the LSIS 22x is set to permanent reading with per-
manently switched-on LED illumination. The reading gate is continuously open.
Normal / enhanced mode
With manual/serial trigger mode and with streaming presentation mode, a distinction
is also made between the normal and enhanced settings:
• The normal setting (factory setting) offers good reading speed at maximum operat-
ing range.
• The enhanced setting, on the other hand, offers maximum reading speed at a
slightly reduced operating range.
Notice!
If in doubt, test which setting, normal or enhanced, delivers the best results in your appli-
cation.
34 Technical description LSIS 22x Leuze electronic