To detect data transmission errors in PLC communication, different checking methods are used:
- Parity check
- Cyclic Redundancy Check (CRC)
- Checksums
- Error-correcting codes
Parity checks are simple but less reliable. CRC is more robust and widely used. Checksums offer a balance of simplicity and effectiveness. Error-correcting codes can detect and fix some errors.
These methods help ensure data integrity. They catch errors that can happen during transmission. PLC systems use them to verify if data was sent and received correctly.
The choice of method depends on the PLC system and its requirements. Some systems may use multiple methods for better error detection.
