Software Handshaking - Honeywell MS9540 Manual

S H
OFTWARE ANDSHAKING
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54
Enable ACK/NAK - After transmitting data, wait for
an ACK (06H) or a NAK (15H) response from the
1 3
host. If ACK is received, complete the
communications cycle and look for more bar codes.
If NAK is received, retransmit the last set of bar
code data and wait for ACK/NAK again.
* Disable ACK/NAK
0 3
Support BEL/CAN in ACK/NAK - When BEL
(07H) is received, the scanner beeps 3 times and
1 1
exits the communications loop. If a CAN (18H) is
received, then the scanner will exit the
communications loop, silently.
* Ignore BEL/CAN in ACK/NAK - Ignore BEL/CAN
characters in communication loop.
0 1
Enable 5 Retries on ACK/NAK Time Out - Allow
up to 5 NAK retransmissions of the data before
1 3
dropping out of the communications loop.
* Disable 5 Retries on ACK/NAK Time Out
0 3
Enable 5 NAK Retries
Allow up to 5 retransmissions of the data if a NAK
1 4
is received.
* Disable 5 NAK Retries
0 4
Enable GLS Handshaking – Accept ]V for the
ACK acknowledgement. ACK will no longer be
1 0
accepted but NAK and any additional ACK/NAK
protocol characters enabled are still accepted.
* Disable GLS Handshaking
0 0
RS232