Denso BHT-200QW Specifikace stáhnout pdf (Strana 13)

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4.2. Trigger Switch Operation Mode

The following four modes exist based on differences in the illumination timing and duration of the illumination LED.

These modes are specified at the Scanner.RdMode property.

 Auto-off mode (default)

The illumination LED turns ON when the trigger switch is pressed, and turns OFF again when the trigger

switch is released or a barcode is read. The illumination LED remains ON for a maximum of five seconds

if the trigger switch is held down continuously.

A barcode can be read while the illumination LED is ON. Barcode reading will no longer be possible,

however, after reading of a barcode is complete or a barcode device file is closed.

If the illumination LED turns OFF after five seconds has elapsed since the trigger switch is pressed, the

trigger switch must be pressed again before barcode reading is possible.

Provided the read data is not read out from the barcode buffer, the illumination LED will not turn ON, and

it will not be possible to read the next barcode, even if the trigger switch is pressed.

 Momentary switch mode

The illumination LED turns ON and a barcode can be read only when the trigger switch is held down.

Provided the read data is not read out from the barcode buffer, the illumination LED will not turn ON, and

it will not be possible to read the next barcode, even if the trigger switch is pressed.

 Alternate switch mode

The illumination LED turns ON when the trigger switch is pressed, and remains ON even after the trigger

switch is released. The illumination LED turns OFF when the barcode device file is closed or when the

trigger switch is pressed again. A barcode can be read while the illumination LED is ON.

The illumination LED turns ON and OFF alternately each time the trigger switch is pressed. Even if a

barcode is read normally, provided the read data is not read out from the barcode buffer, the illumination

LED turns ON, however, the next barcode cannot be read, even if the trigger switch is pressed.

 Continuous read mode

By specifying this read mode, the illumination LED remains ON until the barcode device file is closed,

regardless of whether the trigger switch is pressed. A barcode can be read while the illumination LED is

ON.

Even if a barcode is read normally, provided the read data is not read out from the barcode buffer, the

next barcode cannot be read.

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Denso BHT-200QW Specifikace Strana 13