Ed. see, Ack nak options, Ack character – Datalogic QuickScan I QD2400 User Manual
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References
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QuickScan™ I QD24XX/QBT24XX/QM24XX
ACK NAK Options
This enables/disables the ability of the reader to support the RS-232 ACK/NAK protocol. When
configured, the reader and/or host sends an “ACK” when it receives data properly, and sends
“NAK” when the data is in error.
Options are:
• Disable
• Enable for label transmission — The reader expects an ACK/NAK response from the host
when a label is sent.
• Enable for host-command acknowledge — The reader will respond with ACK/NAK when
the host sends a command.
• Enable for label transmission and host-command acknowledge
ACK Character
This setting specifies an ASCII character or hex value to be used as the ACK character. ASCII
characters or any hex value from 0 to 0xFF can be selected.
NOTE
Setting to previously defined characters such as XON, XOFF, or host commands conflicts
with normal operation of these characters. 8-bit data is not recognized when the option
has been set as 7 Data Bits.
1. Determine the desired character or value.
2. Use the
on the inside back cover of this manual to find the hex equivalent for
the desired character/value.
and scan ENTER/EXIT PROGRAMMING MODE to enter Programming Mode.
4. Scan the bar code: SELECT ACK CHARACTER SETTING.
5. Scan the appropriate two alphanumeric characters from the keypad in
, that represent the desired character/value in step 1 above. The second character will
cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE bar code to exit.
for some examples of how to set this feature.
Table 26. ACK Character Setting Examples
STEP
ACTION
EXAMPLES
1
Desired Character/Value
ACK
$
@
>
2
Hex equivalent from
0x06
0x24
0x40
0x3E
3
Scan ENTER/EXIT PROGRAMMING MODE
4
Scan SELECT ACK CHARACTER SETTING
5
Scan Two Characters from
‘0’ and ‘6’
‘2’ and ‘4’
‘4’ and ‘0’
‘3’ AND ‘E’
6
Scan ENTER/EXIT PROGRAMMING MODE