LRC Checksum Calculator | Longitudinal Redundancy Check Tool

Online LRC (Longitudinal Redundancy Check) calculator. Calculate LRC checksum for data verification and error detection.

Input Format:
LRC Result (Hex):
LRC Result (Dec):
LRC Result (Oct):
LRC Result (Bin):

LRC Knowledge

LRC (Longitudinal Redundancy Check) is a data verification method that calculates the two's complement of the sum of all bytes.

Features

  • Simple calculation: Addition and two's complement
  • Better error detection than simple checksum
  • Commonly used in MODBUS ASCII protocol
  • Can detect odd number of bit errors

Applications

  • MODBUS ASCII communication
  • Industrial protocols
  • Serial data transmission
  • Message integrity verification
  • Terminal communication

Security Recommendations

  • Not suitable for data security purposes
  • Consider using CRC for better error detection
  • Use with other verification methods for critical data
  • Be aware of its limitations in error detection
The tools on this site are strictly prohibited for illegal purposes. We do not bear any losses and responsibilities caused by using the tools.
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