Quick Check® SV Series User’s Guide
8 - 3
External Pull-up Voltage: 0 - 30 Volts DC
Sink current: 100 milliamps maximum
Symbologies
•
USS Code 128
•
USS Code 39
•
USS Code 93
•
USS Codabar
•
USS Interleaved 2 of 5
•
UPC versions A and E (including 2 and 5 digit supplemental codes)
•
EAN-13 and EAN-8 (including 2 and 5 digit supplemental codes)
Operation Modes
The SV Series is very flexible, with many programmable features, but basic
system operation can be broken down into three modes. Two modes include a
sync signal and one mode operates without a sync signal. These modes are
programmable via SV Command Language (
Chapter 6
) and Hand Held
Products’ ScanView software (
Chapter 4
).
Sync Mode – Moving Bar Codes
In this mode, a sync signal is used as an indicator to determine when an object
or label containing a bar code(s) has entered or exited the laser beam. Bar
codes are analyzed and ports activated, transmissions sent, etc. as the bar
codes pass through the beam. The SV unit is programmed for the number of bar
codes to expect during a sync period (see
"Sync Inputs" on page 2-2
); therefore
the SV unit can detect missing or undetectable bar codes.
A hardware input is the most common sync source for this mode.
Note: When in this sync mode, the sync input is a background application. The
SV Series will scan, analyze and report on bar codes as they pass
through the beam in this mode, regardless if a sync signal is sensed. The
presence of a sync signal allows the number of codes expected
(programmed) during the sync period to be used for a No Read condition.
The absence of a sync signal results in operation similar to the Free Scan
Operation described later.
Sync Mode – Stationary Bar Codes
In this mode, a bar code(s) are placed in the beam and held in a known position.
A sync input commands the SV Series to turn on the laser beam, perform a
programmable number of scans, report the analyses and turn off the laser beam.
A ~SA communication sync command is the most common sync source in this
mode. A rastering laser option is often used to analyze bar code area.
Summary of Contents for SV series
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Page 8: ...iv ...
Page 16: ...2 6 Quick Check SV Series User s Guide ...
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