Microscan MS-4 Specifications download pdf (Page 64)

Read Cycle

4-16 MS-3 Laser Scanner User’s Manual

4–Read Cycle/Trig-

New Trigger

Note: When New Trigger is enabled and if not in External Level mode, Laser On/

Off will have no effect. When noreads occur, the laser will remain on.

Timeout or 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: New Trigger ends the current read cycle and initiates a new one when

a new trigger occurs. New Trigger refers only to a “rising edge” trig-

ger.

With either External Edge, Serial, or Serial or Edge enabled, an

edge or serial trigger ends a read cycle and initiates the next read

cycle.

In the case of External Level, a falling edge trigger ends the read

cycle but the next read cycle does not begin until the occurrence of the

next rising edge trigger.

Usage: New Trigger is an effective way to end a read cycle when objects

move past the scanner at irregular intervals (not timing dependent).

Definition: Timeout or New Trigger

is identical to Timeout, except that a time-

out or a new trigger (whichever occurs first) ends the read cycle.

Usage: Useful in applications that require an alternative way to end the read

cycle. For example, if an assembly line should stop completely or the

intervals between objects are highly irregular.

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Microscan MS-4 Specifications Page 64