Security measures of SafetyBUS p

The following security measures are implemented on SafetyBUS p in order to detect communication errors:

• Counters
• Addresses
• Acknowledgements
• Time monitoring (timeout)
• Connection monitoring
• Cyclical polling with timeout
• Safe hardware
• Redundant and diverse chips 

Up to 64 safe devices can be implemented within a network using the multimaster system SafetyBUS p. This can even be extended to up to 128 subscribers if networks are interconnected, enabling 4,000 inputs and outputs per network.

Further technical features:

• Guaranteed error reaction times up to 25 ms
• Safe usable data per telegram: 32 Bit
• Maximum cable runs:
• Copper cables: 3.5 km, fi bre-optic: 40 km
• Multiple networks can be safely interconnected
• Gateways to standard fi eldbuses
• Optional supply voltage via bus cable