Datalogic Scanning M8300 Manuale Utente

REFERENCES 

 

data 

data 

NACK 

ACK 

good RX 

beep 

Transmission Mode = Two-Ways 

data 

 

 
When ACK/NACK is enabled (in Two-Way tx mode), the Host sends an ACK 
character (06 HEX) in the case of good reception or the NACK character (15 HEX) 
requesting re-transmission, in the case of bad reception. Only after the ACK 
character is received by the BC-80X0 does the reader respond with the good 
reception tone. 
 
If the BC-80X0 does not receive an ACK or NACK, transmission is ended after the 
RX Timeout, see par. 5.1.4. See also Radio Protocol Timeout, par. 5.9.1. 
 
When ACK/NACK protocol is enabled, FIFO must be disabled manually, see par. 
5.1.3. 
 
 

 
PowerScan

®

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. 

 
 

®

If enabled, the BC-80X0 collects all messages sent by PowerScan

®

 M8300 and 

sends them in order of acquisition to the connected Host. 

 

If disabled, PowerScan

®

 M8300 blocks message transmission until the BC-80X0 has 

completed transmission towards the Host.