2018年8月1日 · If are looking into network technologies for power substations, or industrial automation you may run across HSR and/or PRP. So here is the five-minute version of what these things are.

IEC 62439-3 addresses this need by defining two recovery protocols that provide zero recovery time due to network configuration: Parallel Redundancy Protocol (PRP) and Highly-available Seamless Redundancy (HSR). This paper describes the benefits and detriments of both PRP and HSR by analyzing their use in a variety of applications.

What are HSR&PRP? • High Availability Seamless Redundancy (HSR) standardized in IEC62439-3 Chapter 5 • Parallel Redundancy Protocol (PRP) standardized in IEC62439-3 Chapter 4 • Redundancy protocols for automation networks • They describe how network redundancy can be achieved and how the redundancy can be monitored

ORing Industrial Networking has launched a new-generation HSR/PRP module that can be applied to existing rackmount modular Ethernet switches: the RGS-P9000/PR9000 Series, achieving zero packet loss and zero-time recovery.

• HSR uses a ring structure that can be expanded to rings of rings • HSR packets are not compliant with standard Ethernet • PRP allows for more flexible network topologies • PRP does use standard Ethernet packets • Both can achieve low-latency redundancy to meet the needs or modern applications

2025年1月18日 · In this blog we will look at two industrial-ethernet protocols: PRP (Parallel Redundancy Protocol) and HSR (High-availability Seamless Redundancy). Specified in IEC 62439-3, PRP and HSR are designed to provide zero-recovery-time redundancy to prevent downtime in mission-critical networks.

As a rule, PRP net­work redun­dan­cy is more expen­sive, but also more flex­i­ble than HSR. PRP redun­dan­cy usu­al­ly dou­bles the cost of a sin­gle non-redun­dant net­work, which makes the imple­men­ta­tion more expen­sive than many oth­er redun­dan­cy pro­to­cols.

2023年6月21日 · High-availability Seamless Redundancy (HSR; IEC 62439-3 Clause 5) is a protocol designed to provide seamless and uninterrupted communication in the event of a network failure or equipment malfunction. The HSR topology is typically a ring, with each device connected by two ports to the ring.

2010年2月4日 · HSR (High-availability Seamless Redundancy) and PRP (Parellel Redundancy Protocol) are protocols supporting redundant network connections defined by IEC 62439-3. Both operate by using two ethernet ports together, and duplicating every frame to be sent over both ports, so if one connection fails, the transmission succeeds.

2015年6月3日 · IEC 61850 specifies two active redundancy protocols, Parallel Redundancy Protocol (PRP) and High Availability Seamless Redundancy Protocol (HSR). PRP and HSR both duplicate all transmitted data and enable zero switchover time if links or switches fail.