REFERENCES
131
before the reset
flash on
period expires, it is again reset and the effect is that the device
remains ON, decoding codes until the
flash on
or
timeout
period expires.
The Safety Time parameter should be used in this case to avoid unwanted multiple reading
of the same code, see par. 4.3.4.
4.3.4
Safety Time
Safety time prevents the device from immediately decoding the same code more than
once. Same code consecutive reading can be disabled requiring the reader to be removed
from the code (no decoding) for at least 400 ms, or a timeout can be set up to 9.9 seconds
before the decoder will accept the same code. Reading is immediate if the code changes.
The safety time parameter is not applicable when reading stacked codes or when setting
one read per cycle in hardware trigger operating mode, since these settings require
voluntary action by the user.
4.4
DECODING PARAMETERS
These parameters are intended to enhance the decoding capability of the
reader for particular applications. Used incorrectly, they can degrade the
reading performance or increase the possibility of a decoding error.
CAUTION
4.4.1
Ink-Spread
The ink-spread parameter allows the decoding of codes, which are not perfectly printed
because the page texture tends to absorb the ink.
4.4.2
Overflow Control
The overflow control parameter can be disabled when decoding codes printed on small
surfaces, which do not allow the use of an overflow space.
This command does not affect code families 2/5, Code 128 and Code 93.
4.4.3
Interdigit Control
The interdigit control parameter verifies the interdigit spacing for code families Code 39
and Codabar.
4.5
RADIO PARAMETERS
4.5.1
Radio Protocol Timeout
This parameter sets the valid time to wait before transmission between the reader and the
cradle is considered failed.
This parameter should be set taking into consideration the radio traffic (number of readers
in the same area).
If the RS-232 interface is used with ACK/NACK enabled, this parameter should be at least
equal to the RX Timeout parameter for low traffic environments. It should be increased if
there are many readers in the same area.
Содержание DelfiScan M80
Страница 1: ...DelfiScan M80 Programming Manual...
Страница 3: ......
Страница 14: ...INSTALLATION 7 2 8 PEN EMULATION CONNECTION 2 9 SINGLE READER LAYOUT...
Страница 22: ...CONFIGURATION 15 WEDGE CONTINUED DIGITAL TERMINALS VT2xx VT3xx VT4xx CP512 u...
Страница 39: ...Enter Configuration Exit and Save Configuration USB KBD 32 USB KEYBOARD SPEED Normal UT10c Fast UT01d...
Страница 162: ...CODE IDENTIFIER TABLE tu RSS Limited RSS 14 Linear and Stacked vw uv...