Microscan MS-890 User Manual page 190

Optoelectric Control
Automatic/Static (Optoelectric Control Mode)
Usage: Useful in a static application in which the symbol is in front of the scanner
when the read cycle begins.
Selects the optimum setting from the Configuration Database.
Definition:
When selected, the scanner cycles once through all the Configuration
Database settings from the closest to the furthermost focal position, testing
first for optimal signal, then for a successful decode.
Note: Since focus positions are tested in ascending order, the closer the
symbols are to the scanner, the quicker the best focus position will be
found.
Important: The maximum time to move from the most inside focus position
to the most outside focus position is 400 ms. One focus position change
takes 10 ms.
Serial Cmd: <K226,mode,# active database settings,latch on trigger,timer/switch
value,control trigger 1 status,control trigger 2 status,control trigger 3 status,
database cycles>
Timer Mode (Optoelectric Control Mode)
Usage: Useful in applications in which there is enough time to cycle through the
database index.
Definition: When this mode is selected, the scanner cycles through database settings
at a time interval determined in Timer Value setting. (See
Value
Important Note: The maximum time to move from the most inside focus
position to the most outside focus position is 400 ms. One focus position
change takes 10 ms.
Serial Cmd: <K226,mode,# active database settings,latch on trigger,timer/switch
value,control trigger 1 status,control trigger 2 status,control trigger 3 status,
database cycles>
Note for Multisymbol: With Multisymbol enabled for more than one symbol, and either
Timer or Automatic/Static mode enabled, the scanner may not locate symbols that are
scanned at various ranges. The reason for this is that once a symbol is located from the
optical database index, the scanner will continue to search for symbols that meet that
index of focus, tracking and gain settings.
9-10
on page 9-11.)
MS-890 Industrial Automation Scanner User Manual
Timer/Switch