Datalogic Touch 90 pro, Product Reference Manual

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RS-232 Parameters References
Product Reference Guide 255
NAK Character
This setting specifies an ASCII character or hex value to be used as the NAK character. ASCII
characters or any hex value from 0 to 0xFF can be selected.
To set this feature:
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. Scan the ENTER/EXIT PROGRAMMING MODE bar code to enter Programming
Mode.
4. Scan the bar code: SELECT NAK CHARACTER SETTING.
5. Scan the appropriate two alpha-numeric characters from the keypad in
Appendix D, Keypad
,
that represent the desired character/value determined above. The second character will
cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE bar code to exit Programming
Mode.
This completes the procedure. See the table below for examples of how to set this feature.
Table 6. NAK Character Setting Examples
STEP ACTION EXAMPLES
1 Desired Character/Value
NAK $ @ >
2 Hex equivalent
0x15 0x24 0x40 0x3E
3 Scan ENTER/EXIT PROGRAMMING MODE
4 Scan SELECT NAK CHARACTER SETTING
5
Scan Two Characters From
Appendix D, Keypad
‘1’ and ‘5’ ‘2’ and ‘4’ ‘4’ and ‘0’ ‘3’ AND ‘E’
6 Scan ENTER/EXIT PROGRAMMING MODE
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 has been set as
7 Data Bits.