Honeywell HF680 User Manual page 16

5. Software Handshaking
Enable XON/XOFF Handshaking
The scanner will stop
transmission whenever an
XOFF(ASCII 13H) is received.
Transmission will resume after
an XON(ASCII 11H) is
received.
ACK/NAK Feature
If enable this feature, after transmitting data, wait for an ACK(06H) or a NAK(15H) response from the host.
If ACK is received, the scanner will beep 1 time and complete the communications cycle and looks for more barcodes.
If NAK is received, retransmit the last set of barcode data and waits for ACK/NAK again.
Enable ACK/NAK
Support BEL/CAN in ACK/NAK
If enable this feature, when BEL(07H) is received, the scanner beeps 3 times and exits the communications loop.
If a CAN(18H) is received, then the scanner will exit the communications loop silently.
Enable 5 Retries on
ACK/NAK Time Out
Allow up to 5 NAK
Retransmissions of the data
Before dropping out of the
Communications loop.
Note: The ACK/NAK Time Out value equals to the communication time outs value.
Please refer to the section "Communication Time Out Options".
*Disable XON/XOFF Handshaking
Note: When Disabled this feature,
please do not transfer
XOFF(ASCII 13H) to the scanner.
The may cause the scanner
abnormal.
If sent, transfer DC2(ASCII 12H)
can recover the scanner.
*Disable ACK/NAK
*Ignore BEL/CAN in ACK/NAK
*Disable 5 Retries on
ACK/NAK Time Out
Do not limit retransmission
To 5 NAK cycles.
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