Chapter 5 ONLINE HELP SOPAS
LECTOR®620
36 © SICK AG · Germany · All rights reserved · Subject to change without notice 8013778/Y269/2013-11-27
Parameters
5.4.2.1 Starting/Stopping the object trigger
The Starting/Stopping the object trigger group contains the parameters for opening and
closing the reading gate.
To ensure that the image is taken at the correct time and the code is securely registered,
the electrical properties of the digital inputs must be adjusted to the sensors and triggers
that are connected.
Depending on the application, this ensures that the appropriate image region of interest is
recorded and that the settings are adjusted to the reading, whether this is in motion or sta-
tionary.
5.4.2.1.1 Trigger delay
The Trigger delay parameter is used to choose between configuration with units of length or
configuration with units of time.
• T
RACK CONTROLLED: The values of the Pause, Reading gate length, Start delay, and Stop de-
lay parameters are entered in mm. In the event of a track-controlled delay, the reading gate
is not opened until the object has continued to move a predefined distance after the trigger
signal.
• T
IME CONTROLLED: The values of the Pause, Reading gate length, Start delay, and Stop de-
lay parameters are entered in ms. In the event of a time-controlled delay, the reading gate
is not opened until a predefined time has elapsed after the trigger signal.
5.4.2.1.2 Start delay
You can use the Start delay parameter to influence the time for opening the reading gate.
The unit can be selected in the Trigger delay parameter.
A positive value causes the reading gate to be opened later, e.g. in order to only enter codes
that are at the rear of an object to therefore reduce the decoding time.
By modifying the trigger, you can adjust the image recording more accurately to the code
position.
•
A. START DELAY (additional time/distance in which the reading gate remains closed after
event A)
5.4.2.1.3 Start by
The Start by parameter is used to select the signal source for opening the reading gate.
• A S
TART BY (signal for opening reading gate)
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