Psion PowerScan M8300 series Bedienungsanleitung PDF herunterladen (Seite 173)

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5.9.6 Single Store

When single store mode is enabled, if the PowerScan

™

M8300 fails to transmit a code

to the cradle, it enters a special operating mode that prevents the user from reading

barcodes. When such operating mode is entered, the trigger no longer enables

barcode reading but is used to retry transmission itself for the number of attempts

selected in configuration. Once the transmission is successful the reader returns to

the standard mode. If transmission is not successful after the number of configured

attempts, the code is discarded.

Single store may be useful if you often read codes at the limit of the coverage area

and there is a chance that code transmission can fail. In such case single store allows

you to move to a more favorable position or location (i.e. closer to the cradle) and

retry transmission without the necessity of re-reading the code since it is already

stored in the reader.

Conversely, if single store is disabled, and the user wants to retry transmission, the

code must be read again, and therefore the attempt must be made from basically the

same location. If the user gives up, he does not know if the transaction was

successful. (Actually the transmission could have been successful but the cradle may

have been unable to acknowledge the message). There are applications in which

there is no risk of transmission failure. In such cases it may be better to disable single

store so that the user perceives a more consistent behavior of the trigger in that it

always corresponds to code reading.

5.9.7 Batch Mode

This Operating Mode allows storing read codes in the internal reader memory. The

stored codes are transmitted to the base station at a later time according to the type

of batch mode selected.

Batch mode can be enabled either manually (normal batch mode) or automatically.

Normal batch mode temporarily suspends radio communication between reader and

base station allowing codes to be stored in the reader on a FIFO (first in, first out)

basis. This can be useful, for example, if codes must be read from a location where

there is no radio network. Upon returning to the system working area, this mode

requires reading the Start Normal Batch Transmission barcode to successively

transmit the list of stored codes to the base station. The FIFO management assures

that the first code read will be the first code to be transmitted to the base station.

The Delete Batch Data barcode allows canceling all barcode data stored in the

reader.

Automatic batch mode allows codes to be stored in the reader on a FIFO basis

whenever the reader is out of radio range. In this case radio communication is not

suspended and transmission is attempted after each code read. If transmission

cannot be successfully completed, then the code is added to the list. When the reader

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Psion PowerScan M8300 series Bedienungsanleitung Seite 173