SICK CLV490 Instrucciones de operaciones descargar pdf (Pagina 119)

Operating Instructions Chapter 6

CLV490 Bar Code Scanner

Operation

Triggering the reading pulse via the Terminal Emulator

In the default setting the "Sensor" switching input is the (external) trigger source of the

reading pulse. The reading pulse can also be triggered directly via the Terminal Emulator of

CLV-Setup for test purposes. To do so, a different trigger source must be selected

temporarily in the CLV490.

1. Choose D

EVICE CONFIGURATION tab.

2. In the R

EADING TRIGGER MODE section click the SERIAL INTERFACE option.

3. Perform a download to the CLV490.

To do so, click the S

ERIAL INTERFACE option again with the right mouse button and choose

OWNLOAD PARAMETER in the context menu.

CLV-Setup copies the parameter to the CLV490 temporarily.

The serial interface has been activated as the trigger source of the reading pulse and

is ready to receive appropriate commands (until the CLV490 is switched off).

4. Click in the toolbar.

The Terminal Emulator window is then displayed.

The CLV490 is in the Reading mode.

5. Click the SW-T

RIGGER ON button or press [F7].

CLV-Setup sends a start command to the CLV490.

The "Sensor" LED lights up and the red scan line appears.

6. Present the bar code pattern from Fig. 6-1, Page 6-4 to the CLV490.

7. Click the SW-T

RIGGER OFF button or press [F8].

CLV-Setup sends a stop command to the CLV490. The "Sensor" LED is extinguished.

The CLV490 switches off the laser diode. The CLV490 displays the reading result in the

output window of the Terminal Emulator. The "Read Result" LED lights up for a duration

of 100 ms (default setting).

6.5.2 Percentage evaluation

In the Percentage evaluation mode, the quality of the reading function is assessed (no

conveyor movement).

The CLV490 performs continuously 100 scans in the free running mode and evaluates the

reading quality. It outputs the reading result every 2 s via the auxiliary interface. The

reading results can be displayed in the Terminal Emulator of CLV-Setup. The "Result 1" to

"Result 4" switching outputs do not become live in the Percentage evaluation mode.

The standard decoder has to be set temporarily for the percentage evaluation.

The Percentage evaluation mode can be called up by choosing V

IEW in the menu bar, as a

device function via CLV490 (interactively), or via the Terminal Emulator.

Note Autofocus mode:

If the CLV490 operates with autofocus in stand-alone configuration, the Percentage

evaluation mode can only be started in the Autofocus mode "Minimum distance" or

"Differential background". The CLV490 fixes the timeout of the automatic focus position

switchover to 30 ms, the preferred focus position is set to the last recognised object.

If the CLV490 operates with autofocus in OTS mode ("Differential background and

tracking"), the CLV490 switches automatically to the autofocus mode "Differential

background“ during the the Percentage evaluation mode.

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SICK CLV490 Instrucciones de operaciones Pagina 119

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