Microscan Quadrus EZ Manual de usuario descargar pdf (Pagina 69)

Quadrus EZ Reader User’s Manual 3-15

Read Cycle

End of Read Cycle

End of Read Cycle Mode

Note: When operating in Continuous Read or Continuous Read 1 Output, the reader is

always in the read cycle.

Timeout

Definition:

The read cycle is the time during which the reader will attempt to capture

and decode a symbol. A read cycle can be ended by a timeout, a new trigger,

or by the last frame in a capture sequence or a combination of the above.

Serial Cmd: <K220,end of read cycle,read cycle timeout>

Default: Timeout

Options:

0 = Timeout 1 = New Trigger

2 = Timeout or New Trigger 3 = Last Frame

4 = Last Frame or New Trigger

Usage:

Typically used with Serial Data or Edge Trigger and Continuous One

Output.

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, causing the reader to stop reading symbols

and send the symbol data or noread message when the time set in Timeout

elapses (times out), if When to Output is set to End of Read Cycle.

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.

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Microscan Quadrus EZ Manual de usuario Pagina 69