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References
ACK NAK Options
This enables/disables the ability of the scanner to support the RS-232 ACK/
NAK protocol. When configured, the scanner and/or host sends an "ACK" when
it receives data properly, and sends "NAK" when the data is in error.
Options are:
•
•
•
•
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
1. Determine the desired character or value.
2. Use the
3. Go to
4. Scan the bar code: SELECT ACK CHARACTER SETTING.
5. Scan the appropriate two alphanumeric characters from the keypad in
6. Scan the ENTER/EXIT PROGRAMMING MODE bar code to exit.
See the table below for examples of how to set this feature.
Table 3. ACK Character Setting Examples
STEP
ACTION
1
Desired Character/Value
Hex equivalent from ASCII
2
Chart on page 287
3
Scan ENTER/EXIT PROGRAMMING MODE
4
Scan SELECT ACK CHARACTER SETTING
Scan Two Characters from
5
Appendix D, Keypad
6
Scan ENTER/EXIT PROGRAMMING MODE
220
Disable
Enable for label transmission — The scanner expects an ACK/NAK
response from the host when a label is sent
Enable for host-command acknowledge — The scanner will respond with
ACK/NAK when the host sends a command
Enable for label transmission and host-command acknowledge
Setting to previously defined characters such as XON, XOFF, or host com-
mands conflicts with normal operation of these characters. 8-bit data is
not recognized when the option Stop Bits on page 22 has been set as 7
Data Bits.
ASCII Chart on page 287
find the hex equivalent for the desired character/value.
page 29
and scan ENTER/EXIT PROGRAMMING MODE to enter Pro-
gramming Mode.
Appendix D,
Keypad, that represent the desired character/value determined
above. The second character will cause a two-beep indication.
EXAMPLES
ACK
0x06
'0' and '6'
on the inside back cover of this manual to
$
@
0x24
0x40
'2' and '4'
'4' and '0'
>
0x3E
'3' AND 'E'
Heron™ HD3130
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