Microscan MS-4 Specifikace Strana 119

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Chapter 7 Scanner Setup
MS-3 Laser Scanner User’s Manual 7-11
7–Scanner Setup
Leading Edge
Continuous
AGC Minimum
(Read Only)
AGC Maximum
(Read Only)
Definition: Finds the leading edge of a symbol by looking for a 40µS quiet zone fol-
lowed by the number of transitions set in “Transition Counter Thresh-
old” on page 6-8, stores the highest value of the samples, and adjusts
the AGC accordingly at the end of the scan.
Usage: Leading Edge is rarely used, but in some cases can improve scan rates
when labels are skewed and the leading edge of a label is difficult to
locate.
Definition: Samples AGC throughout the scan at the rate set in “Transition Counter
Threshold” on page 6-8, averages the sample values, and adjusts the
AGC value at the end of the scan.
Usage: Continuous is the default and the preferred mode for sampling analog
signal amplitude.
Definition: Limits the hardware gain available to the software for the usable range.
Serial Cmd: <K504,gain adjustment,AGC sampling,AGC min,AGC max>
Send <K504?> for a readout.
Definition: Limits the hardware gain available to the software for the usable range.
Serial Cmd: <K504,gain adjustment,AGC sampling,AGC min,AGC max>
Send <K504?> for a readout.
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