- Easily find errors with the self-diagnosis program
- Maximum base expansion: 16 (except CP4)
- Additional integrated communication port
- (CM1-CP4C:RS232C, CM1-CP4D/U:RS422/485)
- In the event that the CPU is replaced,
- I/O and base specifications are still maintained
- Various program types
- Supports over 300 instructions
- Built-in USB 2.0 port (CP4U / CP3U only)
- Attachable flash memory for flexibility (CP3P only)
- Built-in loader port for downloading/uploading programs
- Maximum number of slots in one base is 12


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