Scanner Setup
4-16
MS-710 Scanner User’s Manual
4–Read C
y
cle
Automatic Gain Control (AGC)
Important:
AGC settings apply to both AGC gain control and symbol detection.
AGC Sampling Mode
Disabled
Leading Edge
Continuous
Symbol Detect Status
Usage:
AGC Sampling allows you to specify how automatic gain control sam-
pling will be done.
Definition:
AGC is the acronym for Automatic Gain Control. AGC increases the depth
of field by attempting to maintain signal strength at a constant level
regardless of the range of the bar code symbol.
Serial Cmd:
<
KD
gain,
AGC sampling
>
Default:
Continuous
Options:
0 = Disabled
1 = Leading Edge
2 = Continuous
Definition:
When
AGC Sampling is set to Disabled, gain levels can only be manu-
ally controlled by the
Gain command.
Usage:
Disabled is not recommended, but can be useful in certain applications
in which symbols do not require a large depth of field.
Usage:
Leading Edge is rarely used, but in some cases can improve scan rates
when symbols are skewed and the leading edge of a symbol is difficult to
locate.
Definition:
Finds the leading edge of a symbol by looking for a 40 µS quiet zone fol-
lowed by the number of transitions, stores the highest value of the sam-
ples, and adjusts the AGC accordingly at the end of the scan.
Usage:
Continuous is the default and the preferred mode for sampling analog
signal amplitude.
Definition:
Samples AGC throughout the scan at the rate averages the sample val-
ues, and adjusts the AGC value at the end of the scan.
Usage:
Used for both AGC and symbol detection routines (see also
“No Object
Message” on page 5-10
).
Serial Cmd:
<
KHsymbol detect status
,
transition counter,reflectance threshold>
Options:
0 = Disabled
1 = Enabled
Содержание MS-710
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Страница 22: ...1 10 MS 710 Scanner User s Manual 1 Quick Start...
Страница 30: ...Send Receive Options 2 8 VS 310 Scanner User s Manual 2 Using ESP...
Страница 52: ...Intercharacter Delay 3 22 MS 710 Scanner User s Manual 3 Communications...
Страница 70: ...Scanner Setup 4 18 MS 710 Scanner User s Manual 4 Read Cycle...
Страница 88: ...Autodiscriminate 5 18 MS 710 Scanner User s Manual 5 Symbologies...
Страница 116: ...New Master Pin 7 10 MS 710 Scanner User s Manual 7 Matchcode...
Страница 122: ...Terminal Window Functions 8 6 MS 710 Scanner User s Manual 8 Terminal Mode...
Страница 140: ...Scanner Status Requests 9 18 MS 710 Scanner User s Manual 9 Utilities...
Страница 180: ...A 40 MS 710 Scanner User s Manual Appendix...
Страница 186: ...I 6 MS 710 Scanner User s Manual Index Index...