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Rockwell Automation 2755 2D Hand-Held Scanner User Manual

Page 57

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4–10

Configuring the Scanner

Publication 2755-6.4

Data Format Options (continued)

Data Transmission Format

You can specify whether or not the prefix and/or suffix is added to
decoded bar code data. The options are listed below.

Sends only bar code data.

Sends bar code data with a prefix

Sends bar code data with a suffix

Sends bar code data with a prefix and suffix

The prefix and suffix are user defined. For example, the prefix [ and
suffix ] are defined for bar code data. To send the decoded bar code
data with the prefix only, scan these labels:

Scan This Symbol First

Scan Enter After Selecting Option

Transmit LRC Checksum

When enabled, this option appends an LRC checksum character at
the end of a decode transmission. The default is disabled.

With LRC Checksum enabled, the format of the output data is:

.

If contains the special characters STX, ETX, and DLE,
the DLE character is used as an escape character and is added before
each of those characters so that the receiving side knows not to
interpret the special characters in the data as control characters.

The LRC character is the exclusive OR of all characters except for
the LRC character itself.