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Nak character – Datalogic QuickScan I QD2400 User Manual

Page 253

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RS-232 Parameters

Product Reference Guide

243

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.

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.

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 37

and scan the ENTER/EXIT PROGRAMMING MODE bar code to enter Program-

ming Mode.

4. Scan the bar code: SELECT NAK CHARACTER SETTING.
5. Scan the appropriate two alphanumeric characters from the keypad in

Appendix D, Key-

pad

, 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