Are Ethernet or ARCNET Suitable for Safety Critical Applications?

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Ethernet and ARCNET can be considered for safety-critical applications, but their reliability and risk mitigation depend on the implementation of the OSI model. Safety-rated drivers and specialized PHY/MAC chips designed for extended operating temperatures can enhance performance in these environments. The feasibility of using Internet protocols like TCP/IP in safety applications is supported by existing examples, indicating potential for effective integration. However, careful consideration of network design and redundancy is crucial to ensure safety standards are met. Overall, while both technologies have potential, thorough evaluation and testing are essential for safety-critical use.
DragonPetter
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Hi,

I am curious if ethernet or arcnet are appropriate for safety critical applications. With the multiple levels of the OSI model, I assume there are many opportunities both for increasing and accidentally decreasing reliability, redundancy, and risk mitigation. Are there such things as safety rated drivers? I know that some PHY/MAC chips can be bought for extended operating temperatures. I know very little about the details of networking.

What about internet protocol like TCP/IP? Is this feasible for safety applications?
 
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