RS-232 Parameters
Product Reference Guide  
                   275
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 char-
acters. 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 character/value.
3. Go to page 52 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 c
haracter/value in step 
1 above. The second character wil
l cause a two-beep indication.
6. Scan the ENTER/EXIT PROGRAMMING MODE bar code to exit Program-
ming 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