Welch Allyn SCANTEAM 2380 WAND Spécifications télécharger pdf (Page 39)

4–15

Programming the Scanner

4.9 Message Format

The wand will transmit data automatically to the host as soon as a bar code

symbol is scanned. Each data transmission consists of three main

elements, 1) a PREAMBLE, 2) the MESSAGE consisting of the bar code

data, and 3) a POSTAMBLE.

The actual content of the data transmission will depend upon the Preamble

and Postamble characters and the decoded bar code information. The

transmission format is shown below.

PREAMBLE MESSAGE POSTAMBLE

where: PREAMBLE = Assigned Preamble Character(s)

MESSAGE = Bar Code Data

POSTAMBLE = Assigned Postamble Character(s).

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 67 68

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Welch Allyn SCANTEAM 2380 WAND Spécifications Page 39