Denso 400BW-CE Spécifications télécharger pdf (Page 77)

In scannning a split code in edit mode, the maximum data length is 8,192 bytes. Data exceeding 8,192

bytes causes a read error to be recognized and the beeper to sound for 500 ms. The read data will be

destroyed.

When a split code is read in non-edit mode, the read data is stored into the barcode buffer in the

following format:

Sub-code no

No. of sub-codes Parity Read data

Sub-code no., No. of sub-codes: 1 byte (hex.) (0 − F)

Parity: 2 bytes (hex.) (00 − FF)

The sub-code number, number of sub-codes, and parity are converted into hexadecimal characters.

The sub-code number is expressed in hexadecimal notation; for example, 0 (30h) for the first, and F

(46h) for the 16

. Likewise, the number of sub-codes is expressed in hexadecimal notation; for

example, 1 (31h) for the splitting into 2 segments, and F (46h) for the splitting into 16 segments.

The parity is provided for sum checking of the read data. It also serves as the delimiter between a

group of split codes from another group.

In split code scanning, the beeper sounds as follows: Upon reading the first split code of a QR code, it

beeps twice, signaling the start of the split code scanning mode. Thereafter, the beeper sounds once

each time a split code is read, except the last one, which causes the beeper to sound three times,

signaling the end of the split code scanning mode.

All split codes belonging to a QR code must be read, no matter what sequence it may be. Once read, a

split code cannot be read again until all the other split codes belonging to the other QR code have

been read.

In any of the following events, the split code scanning will be terminated, even if the scanning of all split

codes of the QR code is not complete. If scanning is terminated in this manner in edit mode, all the

data that has been read up to that point will be destroyed.

・ A non-splti code has been read:

In this case, the data that has been read will be stored into the barcode buffer.

・ A split code belonging to another QR code has been read:

The BHT initiates the reading of the new sequence of split code scanning.

・ The barcode reading window has been put away from the barcode for more than 3 seconds in the

momemntary switch mode, alternate switch mode, or continuous read mode; or more than 5

seconds has elapsed since a split code was read.

・ The illuminating LED has been turned OFF by a trigger switch, i.e., in the momentary switch mode

or auto-off mode, the trigger switch has been released, or in the alternate switch mode, the trigger

switch has been pressed again.

□ PDF417(Y)

Syntax

Y [;[symbol type]]

For symbol type, you can specify one of the values shown below.

Symbol type Applicable code

S MicroPDF417

M PDF417

If you do not specify the symbol type, both MicroPDF417 and PDF417 can be read.

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 175 176

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Denso 400BW-CE Spécifications Page 77

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