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27/01/2012
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Siemens Industry Automation and Drive Technologies has launched a fault-tolerant Industrial Ethernet network solution.
 Its Scalance X-200RNA (redundant network access) network access points have been designed for applications requiring high fault tolerance – and adds to the control and automation giant's existing Softnet-IE RNA for connecting PCs to parallel networks.
The new access points connect one or two network segments or data terminals without PRP (parallel redundancy protocol) functionality over two parallel networks, without delay.
Siemens explains that, in operation, an access point duplicates the transmitter's message frame and feeds a copy into the connected networks, each of which can have different structures.
The two separate networks and the PRP procedure guarantee secure and deterministic transmission, without reconfiguration delays.
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Author
Brian Tinham
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