On SafetyBUS p, safety-related data is communicated separately from standard data, via separate bus cables. This division makes troubleshooting easier when faults occur. It also increases the system's availability, as there's no feedback between standard and safety-related communication. The reduced bus load also leads to faster reaction times. There is a clear allocation of responsibility for the data. As a result, unwanted or accidental modifications in the standard section will not infl uence the safety-related section. The restriction to a purely safety-related system means that complexity is low, which simplifies the engineering and approval process.
Notified bodies such as TÜV and BG have approved safe communication via SafetyBUS p for use in safety-related applications in accordance with the following standards:
- SIL 3 in accordance with IEC 61508
- Category 4 in accordance with EN 954-1
- PL e in accordance with ISO 13849
- SIL 3 in accordance with IEC 62061
Diagnostic information from the subscriber is made available to the Management Device, which is usually a safety control system. The safety control system can provide this information to common standard communication systems such as Profibus DP, CANopen or Ethernet/IP, for example.
A wide range of communication media is available to SafetyBUS p, enabling it to satisfy the varied application requirements. Communication may therefore be copper, wireless, light or fiber-optic based.
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