RS-232 Parameters
Product Reference Guide
285
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 send
s a command.
• Enable for label transmission an
d 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.
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
has been set as 7
Data Bits.
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 52 and scan ENTER/EXIT PROGRAMMING MODE to enter Pro-
gramming Mode.
4. Scan the barcode: SELECT ACK CHARACTER SETTING.
5. Scan the appropriate two alpha-numeric characters from the keypad in
Appendix D, Keypad, that represent the desired ch
aracter/value in step 1
above. The second character will cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE barcode to exit.
See Table 29 for some examples of how to set this feature.
Table 29. 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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