1. MP72 Scanner Scale Barcode Programming Guide
  2. Symbologies
  3. Code 128
  4. Code 128 Security Level
  • MP72 Scanner Scale Barcode Programming Guide
Code 128 Security Level
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Code 128 Security Level

Parameter #
751
 (SSI #F1h EFh)
This parameter enables four levels of decode security for Code 128.
Code 128 barcodes are vulnerable to misdecodes, particularly when Code 128 Lengths is set to Any Length. 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 barcodes.
  • Code 128 Security Level 1 - This option eliminates most misdecodes while maintaining reasonable aggressiveness.
  • Code 128 Security Level 2 - This option applies greater barcode 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.
Selecting Code 128 Security Level 3 is an extreme measure against mis-decoding severely out-of-spec barcodes, and significantly impairs the decoding ability of the device. If this level of security is required, try to improve the quality of the barcodes.
Code 128 Security Level 0 (0)
*Code 128 Security Level 1 (1)
Code 128 Security Level 2 (2)
Code 128 Security Level 3 (3)