Di-soric ID-01, User Manual

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ID-01 Laser Scanner User’s Manual
4-13
Read Cycle
End of Read Cycle
Note : When to Output must be set to End of Read Cycle before this command can be
active.
End of Read Cycle Mode
Note : When operating in Continuous Read or Continuous Read 1 Output , the scanner
is always in the read cycle.
Timeout
Definition: The read cycle is the time during which the scanner will attempt to read and
decode a symbol. At the end of a read cycle the scanner stops reading
symbols and sends the symbol data or noread message to the host.
Definition: A read cycle can be terminated by a new trigger, a timeout, or a combina-
tion of both.
Serial Cmd: < K220, end of read cycle ,read cycle timeout >
Options: 0 = Timeout
1 = New Trigger
2 = Timeout & New Trigger
Usage: Typically used with Serial or Edge and Continuous One .
It is effective in highly controlled applications when the maximum length of
time between objects can be predicted. It assures that a read cycle ends
before the next bar coded object appears, giving the system extra time to
decode and transmit the data to the host.
Definition: Timeout ends the read cycle when the time set in Read Cycle Timeout
elapses or “times out.”
If in
Continuous Read 1 Output , a timeout initiates a new read cycle and
allows the same symbol to be read again.
With either
External Edge , Serial Data , or Serial Data & Edge enabled, a
timeout ends the read cycle and symbol data or a noread message is sent
to the host.
With
External Level enabled, the read cycle does not end until the falling
edge trigger or a timeout occurs. The next read cycle does not begin until
the next rising edge trigger.