Datalogic PowerScan D8330 Reference Manual

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Datalogic PowerScan D8330 Reference Manual Manual pdf 190 page image

POWERSCAN® D8330/M8300/M8300-DK1825.9.6 Single StoreWhen single store mode is enabled, if the PowerScan® M8300 fails to transmit acode to the cradle, it enters a special operating mode that prevents the user fromreading barcodes. When such operating mode is entered, the trigger no longerenables barcode reading but is used to retry transmission itself for the number ofattempts selected in configuration. Once the transmission is successful the readerreturns to the standard mode. If transmission is not successful after the number ofconfigured attempts, the code is discarded.Single store may be useful if you often read codes at the limit of the coverage areaand there is a chance that code transmission can fail. In such case single storeallows 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 alreadystored in the reader.Conversely, if single store is disabled, and the user wants to retry transmission, thecode must be read again, and therefore the attempt must be made from basically thesame location. If the user gives up, he does not know if the transaction wassuccessful. (Actually the transmission could have been successful but the cradle mayhave been unable to acknowledge the message). There are applications in whichthere is no risk of transmission failure. In such cases it may be better to disablesingle store so that the user perceives a more consistent behavior of the trigger inthat it always corresponds to code reading.5.9.7 Batch ModeThis Operating Mode allows storing read codes in the internal reader memory. Thestored codes are transmitted to the base station at a later time according to the typeof batch mode selected.Batch mode can be enabled either manually (normal batch mode) or automatically.Normal batch mode temporarily suspends radio communication between reader andbase 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 wherethere is no radio network. Upon returning to the system working area, this moderequires reading the Start Normal Batch Transmission barcode to successivelytransmit the list of stored codes to the base station. The FIFO management assuresthat 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 thereader.Automatic batch mode allows codes to be stored in the reader on a FIFO basiswhenever the reader is out of radio range. In this case radio communication is notsuspended and transmission is attempted after each code read. If transmissioncannot be successfully completed, then the code is added to the list. When the