Host Acknowledgment - Honeywell Xenon 1900 User Manual

When the scanner goes out of range, the scanner repeatedly attempts to connect to the base unit or Access Point. Each
attempt consists of approximately 5 seconds of active time followed by 3 seconds of idle time. After one hour, the scanner
powers off and batch mode data is lost.
Maximum Link Attempts set to 15
Other values at default setting
When the scanner goes out of range, 15 attempts are made to link to the base unit or Access Point. Each attempt consists
of approximately 5 seconds of active time followed by 3 seconds of idle time. After 15 cycles (8*15 =120), or about 2 min-
utes, the scanner stops trying to connect to the base or Access Point, but retains any bar codes that may have been saved
in batch mode. After one hour, the scanner powers off and batch mode data is lost.
Auto Reconnect Mode set to 0
Maximum Link Attempts set to 15
Other values at default setting
When the scanner goes out of range, no action is taken to relink. When the trigger is pulled, 15 attempts are made to link
to the base or Access Point. Each attempt consists of approximately 5 seconds of active time followed by 3 seconds of idle
time. After 15 cycles (8*15 =120), or about 2 minutes, the scanner stops trying to connect to the base or Access Point, but
retains any bar codes that may have been saved in batch mode. After one hour, the scanner powers off and batch mode
data is lost. Refer to Auto Reconnect
Auto Reconnect Mode set to 1
Maximum Link Attempts set to 0
Relink Time-Out set to 10
Scanner Power Time-Out Timer set to 1800
Note: See Scanner Power Time-Out Timer
The scanner attempts to connect to the base or Access Point every 15 seconds, measured from one attempt start to the
next attempt start. After one half hour, the scanner powers off.

Host Acknowledgment

Some applications require that the host terminal (or server) validate incoming bar code data (database look-up) and provide
acknowledgement to the scanner whether or not to proceed. In Host ACK Mode, the scanner waits for this acknowledgement
after each scan. Visual and audible acknowledgements provide valuable feedback to the scan operator. The Host ACK func-
tionality is controlled via a number of pre-defined escape commands that are sent to the scanner to make it behave in different
ways.
Note: System performance degrades when using Host ACK at rates lower than 9600 baud.
The following criteria must be met for the Host ACK to work correctly:
• The cordless system must be configured for Host Port RS232 (terminal ID = 000) or USB COM Emulation (terminal ID = 130).
• RTS/CTS is defaulted off. You must enable it if the host system requires it.
• Host ACK must be set to On
• A comma must be used as a terminator.
• The host terminal software must be capable of interpreting the bar code data, make decisions based on the data content, and
send out appropriate escape commands to the scanner.
Escape commands are addressed to the scanner via "Application Work Groups." Once a command is sent, all scanners in a
group respond to that command. Because of this, it is recommended that each scanner is assigned to its own group in
Host ACK mode.
The commands to which the scanner responds are listed on
y [ESC] x, where "y" is the application work group number, "[ESC] x" is the escape command, and the comma is the terminator,
which is required. (When "y" is not specified, the command is sent to the default Application Work Group 0.)
Example: Commands may be strung together to create custom response sequences. An example of a command string is listed
below.
0[ESC]4,[ESC]5,[ESC]6,
The above example will make a scanner that is in application work group zero beep low, then medium, then high.
3 - 26
Mode, page 3-24, to review other events that can start the relink process.
on page 3-12.
(page 3-27).
page 3-27. The [ESC] is a 1B in hex. A typical command string is