Symbologies 12 - 31
Code 128 <FNC4>
Parameter # 1254
SSI # F8h 04h E6h
This feature applies to Code 128 bar codes with an embedded <FNC4> character. Select Ignore Code 128
<FNC4> to strip the <FNC4> character from the decode data. The remaining characters are sent to the host
unchanged. When disabled, the <FNC4> character is processed normally as per Code 128 standard.
Code 128 Security Level
Parameter # 751
SSI # F1h EFh
Code 128 bar codes are vulnerable to misdecodes, particularly when Code 128 Lengths is set to Any Length. The
scanner offers four levels of decode security for Code 128 bar codes. There is an inverse relationship between
security and scanner aggressiveness. Increasing the level of security can reduce scanning aggressiveness, so
select only the level of security necessary.
• Code 128 Security Level 0 - The scanner operates in its most aggressive state, while providing sufficient
security in decoding most in-spec bar codes.
• Code 128 Security Level 1 - This option eliminates most misdecodes while maintaining reasonable
aggressiveness.
• Code 128 Security Level 2 - This option applies greater bar code security requirements if Security Level 1
fails to eliminate misdecodes.
• Code 128 Security Level 3 - If you selected Security Level 2, and misdecodes still occur, select this
security level to apply the highest safety requirements.
*Honor Code 128 <FNC4>
(0)
Ignore Code 128 <FNC4>
(1)
NOTE Selecting this option is an extreme measure against mis-decoding severely out-of-spec bar codes, and
significantly impairs the decoding ability of the scanner. If this level of security is required, try to improve
the quality of the bar codes.
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