Metrohm tiamo 2.3 Patch 1 (process analysis) - Manual (Page 1618)

7.19 Barcode reader ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
1602 ￭￭￭￭￭￭￭￭ 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.