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| REFERENCES |
Transmission Mode = |
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| data | data |
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PowerScan® | cable | Host | |
NACK | |||
M8300 | good RX | data |
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| beep |
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| ACK |
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ACK/NACK enabled
When ACK/NACK is enabled (in
If the
When ACK/NACK protocol is enabled, FIFO must be disabled manually, see par. 5.1.3.
5.1.3FIFOPowerScan® D8330 Readers
This parameter determines whether data (barcodes) are buffered on a First In First Out basis allowing faster data collection in certain cases for example when using slow baud rates and/or hardware handshaking.
If the FIFO buffering is enabled, codes are collected and sent out on the serial line in the order of acquisition. About 800 characters can be collected (buffer full), after which the reader signals an error and discards any further codes until the transmission is restored.
If the FIFO buffering is disabled, each code must be transmitted before another one can be read.
PowerScan® M8300 Readers
If enabled, the
If disabled, PowerScan® M8300 blocks message transmission until the
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