End Of Read Cycle - Microscan QX Hawk User Manual

Read Cycle

End of Read Cycle

The read cycle is the time during which the imager will attempt to decode a symbol. A read
cycle can be ended by a timeout or a new trigger, or a combination of the two.
End of Read Cycle Mode
Note: When operating in
always in the read cycle.
Timeout
Typically used with
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 symbol
appears, giving the system extra time to decode and transmit the data to the host.
Timeout ends the read cycle, causing the imager to stop reading symbols and send the
symbol data or No Read message when the time set in Timeout elapses (times out), if
When to Output Symbol Data
If in Continuous Read 1 Output, a timeout initiates a new read cycle and allows the same
symbol to be read again.
With External Edge,
read cycle and symbol data or a No Read message is sent to the host.
With External Level
occurs or a timeout occurs. The next read cycle does not begin until the next rising edge trigger.
5-52
Continuous Read
Continuous Read 1 Output
is set to
Serial Data, or Serial Data and Edge enabled, a timeout ends the
enabled, the read cycle does not end until the falling edge trigger
or Continuous Read 1
and Serial Data and
End of Read Cycle.
QX Hawk Industrial Imager User's Manual
Output, the imager is
Edge.