NCR 74 OFX (7874), User Manual

Page: 135 / 268

Chapter 5: Programming 5-27
Minimum Characters
The Minimum Characters Allowed parameter defines how many characters in a bar
code must be read the same by two separate scans before determining a valid read has
occurred. This option should be set to the number of characters in a typical tag which
ensures that the scanner reads typical tags with at least two complete good scans
before sending the tag data to the host terminal.
There are 14 selections for this parameter option (2 through 15 characters). Scan the
proper Hex tag ( Hex 2 through Hex F ). The default is 8 characters.
Note: 10 = Hex A , 11 = Hex B , 12 = Hex C ...
Full ASCII
Code 39 permits full ASCII capability by encoding the additional characters. Disable
this function by scanning the Hex 0 tag, and scan the Hex 1 tag to enable this function.
In this mode, the presence of a special character before an upper ‐ case letter denotes
that the character is lower ‐ case.
Check Digit Present
The Check Digit Present parameter determines if the bar code must contain a correct
check digit to be identified as valid. If this function is enabled, the bar code is ignored
if a check digit is not present. Scan the Hex 0 tag to disable this option, or the Hex 1
tag to enable it.
Transmit Check Digit
The Transmit Check Digit parameter selects whether to send the check digit to the
host terminal. Scan the Hex 0 tag to disable this option, or the Hex 1 tag to enable this
option.
Allow 1- or 2-Character Tags
The Allow One ‐ or Two ‐ Character Tags parameter selects whether or not to permit
the scanner to read a 1 ‐ or 2 ‐ character Code 39 label. If the application does not
require that the scanner read a 1 ‐ or 2 ‐ character Code 39 label, scan the Hex 0 tag to
disable this option. If the application requires this capability, scan the Hex 1 tag to
enable it.
Code 39 Tone
This parameter permits you to enable or disable the Code 39 tone. Scan Hex 0 to
disable the tone (default) or Hex 1 to enable it. If disabled, the Code 39 tone is under
control of the UPC tone control (general good read tone).