Transition Counter - Microscan MS-820 User Manual

Scanner Setup
AGC Minimum
Usage: Decreasing the minimum allows the AGC to compensate for brighter,
closer-in symbols, but could degrade performance over the scanning area.
Definition: Limits the minimum range of the available gain.
Serial Cmd: <KDgain,AGC sampling,AGC
Default: 110
Default: Enabled
Options: 50 to 135
AGC Maximum
Usage: Increasing the maximum allows the AGC to compensate for darker, fur-
ther-out symbols, but could degrade performance over the scanning area.
Definition: Limits the maximum range of the available gain.
Serial Cmd: <KDgain,AGC sampling,AGC
Default: 144
Options: 125 to 255
Symbol Detect Status
Definition:
During the read cycle, the scanner counts the number of bar and space
transitions defined in the Transition Counter. If the count matches or
exceeds the threshold, the scanner will perform AGC routines. The results
of this test are also made known in output messages.See
Message," on page 5-8
Serial Cmd: <KHsymbol detect
Default: Disabled
Options: 0 = Disabled

Transition Counter

Usage: Can be useful in certain application where extraneous objects in the field
of view might require a higher threshold.
Definition: Determines the number of bar/space transitions that are sampled before
AGC can be resolved.
Serial Cmd: <KHsymbol detect
Default: 14
Options: 1 to 255
MS-820 Industrial Bar Code Scanner User's Manual
4-18
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min,AGC max>
min,AGC max>
and "No Symbol Message," on page
status,transition counter>
1 = Enabled
status,transition counter>
"Bad Symbol
5-9.