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References ACK NAK Options This enables/disables the ability of the reader to support the RS-232 ACK/NAK protocol. When configured, the reader and/or host sends an “ACK” when it receives data properly, and sends “NAK” when the data is in error. Options are: • Disable • Enable for label transmission — The reader expects an ACK/NAK response from the host when a label is sent. • Enable for host-command acknowledge — The reader will respond with ACK/NAK when the host sends a command. • Enable for label transmission and host-command acknowledge ACK Character This setting specifies an ASCII character or hex value to be used as the ACK 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. 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 35 and scan ENTER/EXIT PROGRAMMING MODE to enter Programming Mode. 4. Scan the bar code: SELECT ACK 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. See Table 26 for some examples of how to set this feature. Table 26. ACK Character Setting Examples STEP ACTION 1 Desired Character/Value ACK $ @ > 2 Hex equivalent from ASCII Chart 0x06 0x24 0x40 0x3E 3 Scan ENTER/EXIT PROGRAMMING MODE 4 Scan SELECT ACK CHARACTER SETTING 5 Scan Two Characters from Appendix D, Keypad ‘2’ and ‘4’ ‘4’ and ‘0’ ‘3’ AND ‘E’ 6 Scan ENTER/EXIT PROGRAMMING MODE 234 EXAMPLES ‘0’ and ‘6’ QuickScan™ I QD24XX/QBT24XX/QM24XX