
USB-COM Parameters
Programming Reference Guide
181
ACK NAK Options
This enables/disables the ability of the scanner to support the 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:
• Disable
• Enable for label transmission — The scanner e
xpects 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
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 the inside back cover of this manual to find the hex equivalent
for the desired character/value.
3. Go to page 17 and scan ENTER/EXIT PROGRAMMING MODE to
enter Program-
ming Mode.
4. Scan the barcode: SELECT ACK CHARACTER SETTING.
5. Scan the appropriate two alphanumeric characte
rs from the keypad in Appendix D,
Keypad, that represent the desired character/value in step 1 above. The second charac-
ter will cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE barcode to exit.
See Table 26 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
ASCII
Chart
0x06 0x24 0x40 0x3E
3 Scan ENTER/EXIT PROGRAMMING MODE
4 Scan SELECT ACK CHARACTER SETTING
5
Scan Two Characters from
Appendix D, Keypad
‘0’ and ‘6’ ‘2’ and ‘4’ ‘4’ and ‘0’ ‘3’ AND ‘E’
6 Scan ENTER/EXIT PROGRAMMING MODE
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