Datalogic Gryphon I GPS4400, Product Reference Manual

Page: 245 / 316

RS-232 Parameters References
Product Reference Guide 235
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 25
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 Program-
ming Mode.
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