Welch Allyn Scanteam 6180, Technical Manual

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4–9
Programming the Scanner
Minimum Length
A two (2) number code which describes the minimum number of characters
that will permitted in the bar code message. The code length must always
be represented by two digits. For lengths less than 10 characters, a zero (0)
should be used as a filler (05).
Maximum Length
A two (2) number code which describes the maximum number of
characters that will be permitted in the bar code message.
4.5 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).