19 barcode reader, 1 barcode reader - general, 19 barcode reader 2 7.19.1 – Metrohm tiamo 2.3 Patch 1 (process analysis) User Manual

Page 1618: Barcode reader - general 2, Barcode reader

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7.19 Barcode reader

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1602

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tiamo 2.3 Patch 1 (for Process Analysis)

7.19

Barcode reader

7.19.1

Barcode reader - General

A barcode reader is used to enter sample and other data in tiamo.

Note

A barcode reader only has to be configured as a device in tiamo when
the functions for automatic data import into sample tables are to be
used. If a USB barcode reader not configured as a device is connected
to the PC, it will be recognized (in the same way as a keyboard) as
being an HID (Human Interface Device) that can be used for data
entries in all fields.

Barcode reader as device

Note

If the functions of a barcode reader are to be used for automatic data
import into sample tables, the barcode reader must be added as a
device in tiamo, and configured so that during each data transfer the
following preamble and postamble control characters are also transmit-
ted:

Preamble #1: 02hex (^B, STX)

Preamble #2: 02hex - 09hex (different identification code 02hex -
09hex
for each barcode reader connected)

Postamble #1: 04hex (^D, EOT)

Finish: <CR><LF>

Refer to the barcode reader manual for instructions regarding its con-
figuration.

Barcode reader as HID

Note

If a barcode reader is to be used as HID it must be configured in such a
way that it does not transmit any preamble control characters.

Refer to the barcode reader manual for instructions regarding its con-
figuration.

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