Siemens extends Industrial Ethernet portfolio with high-availability redundancy solution for ring topologies
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The new Scalance X- 200RNA (Redundant Network Access) network access points are designed for all applications and industries in which network connection with a high level of availability is required.
The Siemens Industry Automation Division offers two redundant solutions based on the Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy Protocol (HSR) in accordance with the IEC 62439-3 standard.
Alongside a version for parallel PRP networks, a version for ring HSR network topologies is now also available.
The Scalance X-200RNA access points for PRP networks connect up to two network segments or data terminals with no PRP functionality without delay over two parallel networks. In ring network topologies, the HSR technique permits seamless data transmission to be achieved for high-availability systems, for example in process automation applications. Scalance X204RNA devices with HSR functionality can also be used for simple redundant transition from HSR to PRP network structures.
Siemens offers the new access points as Scalance X204RNA in a plastic enclosure with four electric RJ45 ports as well as Scalance X204RNA EEC (Enhanced Environmental Conditions) in a metal enclosure with two electric ports and two electric/ optical combined ports for SFP (Small Form-Factor Pluggable) transceivers and wide-range power supplies. A variety of information for network diagnostics is available via SNMP (Simple Network Management Protocol).
With the Softnet-IE RNA software package, Siemens is also offering a solution capable of linking PCs at low cost into redundant parallel network topologies based on PRP without additional programming overheads. Using the Siemens software, a computer can establish the same seamless redundancy connection over two LAN networks as the Scalance X-200RNA network access points.
Typical areas of application for high-availability redundant connections can be found in the energy industry as well as in process automation, for example in the pharmaceutical or chemical industries.
Video HSR – High-availability Seamless Redundancy – Industrial Ethernet ring networks with seamless redundancy http://youtu.be/ExyR9VLxQH8
Video PRP Parallel redundant industrial Ethernet networks with seamless redundancy“ http://youtu.be/gOumxU7Jg_I
Siemens Redundant Network Access (RNA) www.siemens.com/rna
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