Datalogic QuickScan I QD24 Series, Product Reference Manual

Page: 219 / 282

RS-232 Parameters
Product Reference Guide 209
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.
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.
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 char-
acter/value.
3. Go to page 28 and 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 alphanumeric characters from the keypad in Appendix D, Keypad , that represent
the desired character/value in step 1 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 Table 27 for some examples of how to set this feature.
Table 27. NAK Character Setting Examples
STEP ACTION EXAMPLES
1 Desired Character/Value NAK $ @ >
2
Hex equivalent from ASCII
Chart
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