Modes Of Operation - Hand Held Products SV Series User Manual

Transmit SV Commands
This button invokes a special screen where up to fourteen individual
commands may be composed and transmitted in any order. Proper use requires
knowledge of the SV download language. See the Chapter 6, SV Download
Language for details. This function is intended for advanced setup involving
special functions not normally accessed by ScanView. These can include special
transmission formats, special commands in a custom SV firmware version or
diagnostic functions used by Hand Held Products' Application Support and
Service personnel. The shortcut key for this function is F4.
Report an Analysis
Reports a new analysis of any bar code(s) currently in the SV
unit's beam path. This is most useful in setup where scan distance and
orientation is being finalized. It is also useful when using the SV unit as a
standalone verifier scanning codes being manually placed in the beam by the
user. The shortcut key for this function is the Spacebar.

Modes Of Operation

ScanView operates in two basic modes: Session and Reflectance Profile.
Session Mode
This mode scans, analyzes and provides reports on individual bar codes.
Reporting is accomplished via the Bar Code Analysis Screen (see "Bar Code
Analysis Screen" on page 4-9). The parameters analyzed and many of the
parameters displayed are user programmable
Session Mode is entered by default when the program is initially started. It can
also be entered from the Reflectance Profile Mode by clicking the Return to
Session Mode Speed button (see "Reflectance Profile Screen" on page 4-12.)
The Bar Code Analysis Screen (see "Bar Code Analysis Screen" on page 4-9) is
displayed and analysis from bar codes passing through the SV unit's beam will
be displayed. In cases where a bar code is statically held in the beam analysis of
the code can be accessed by clicking the Report an Analysis Speed button.
Session Mode Notes
ScanView updates the bar code analysis graphs each time a bar code is
processed by the verifier; but there is a limit to the graph update rate that
ScanView can sustain. Factors that determine the processing load include the
bar code analysis rate (bar codes per second) and the number of displayed
analysis parameter graphs (selected by the user). The Windows
communications facility has a data buffer that allows the graph processing to
'catch up' between bursts of transmitted data. If the incoming data volume
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