Prp - Parallel Redundancy Protocol - Siemens 7SR12 Argus Manual

7SR11 & 7SR12 Installation Guide
6.3.2 PRP – Parallel Redundancy Protocol
The HSR redundancy protocol according to the IEC 62439-3 standard is based on double transmission of
message frames over ring-topology networks in both directions. In the case of an error, the message frame will be
transmitted without any delay. No reconfiguration time is necessary for the network, as is the case for RSTP.
PRP need to be enabled on the device within Reydisp Manager (See Reydisp Manager user guide).
Figure: 6.3-2 PRP Ethernet Network Configuration
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