RS-232/USB COM PARAMETERS
PRODUCT REFERENCE GUIDE
275
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 prop
-
erly, 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.
1. Determine the desired character or value.
2. Use the ASCII Chart on
to find the hex equivalent for the desired charac
-
ter/value.
3. 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 determined above. The second charac
-
ter will cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE bar code to exit.
See the table below for examples of how to set this feature.
Table 9 - ACK Character Setting Examples
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 Data Bits
Bits.
STEP
ACTION
EXAMPLES
1
Desired Character/Value
ACK
$
@
>
2
Hex equivalent from ASCII Chart
on
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
