SCALANCE X-204RNA for HSR (High-availability Seamless Redundancy Protocol in accordance with IEC 62439-3) and PRP (Parallel Redundancy Protocol in accordance with IEC 62439-3)

HSR

The SCALANCE X-200RNA (Redundant Network Access) managed Industrial Ethernet network access points with HSR functionality are used to connect up to two non-HSR-enabled terminal devices or network segments to a ring-shaped HSR network structure. They can also be used for simple and redundant transition from HSR to PRP (Parallel Redundancy Protocol) network structures.

• Media redundancy thanks to duplicate transmission of frames in ring-shaped networks
• High system availability since frames are sent simultaneously via two routes in the ring
• No reconfiguration times of the ring-shaped network are required in the event of an error due to duplicate transmission of frames in the ring
• Simple and redundant connection of HSR and PRP network structures

PRP

The SCALANCE X-200RNA (Redundant Network Access) managed Industrial Ethernet network access points with PRP functionality are used to connect up to two non-PRP-enabled terminal devices or network segments to parallel networks.

• Media redundancy thanks to duplicate transmission of frames in two parallel, separate networks
• High system availability since frames are sent simultaneously over two separate networks
• Reconfiguration times in a subnetwork do not affect the propagation time because the frames are transmitted via two separate networks (bumpless redundancy)

Product versions

• Network access point in plastic enclosure with electrical ports
  • SCALANCE X204RNA for HSR or PRP networks;
    for connecting up to two non-HSR- or PRP-enabled terminal devices to ring-shaped networks with four electrical ports
• Network access point in metal enclosure with electrical and optical ports, as well as a wide-range power supply unit for use under extended ambient conditions
  • SCALANCE X204RNA EEC for HSR or PRP networks;
    for connecting up to two non-HSR- or PRP-enabled terminal devices to ring-shaped networks with two electrical terminal device ports and two optical/electrical combo ports for network connection
  • SCALANCE X204RNA EEC for PRP or HSR networks;
    for connecting up to two non-PRP-enabled or non-HSR-enabled terminal devices to redundant networks with two electrical terminal device ports and two optical/electrical combo ports for network connection. PRP or HSR function can be defined by the user when starting the device (for description of PRP function, see chapter on X204RNA with PRP function).
• Redundant 24 V DC voltage infeed or wide-range power supply unit, depending on device version
• SNMP access, integrated Web server and automatic e-mail transmission function for remote diagnostics and signaling via the network