{"id":244121,"date":"2024-10-19T16:01:56","date_gmt":"2024-10-19T16:01:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-62439-32012\/"},"modified":"2024-10-25T11:00:33","modified_gmt":"2024-10-25T11:00:33","slug":"bs-en-62439-32012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-62439-32012\/","title":{"rendered":"BS EN 62439-3:2012"},"content":{"rendered":"

IEC 62439-3:2012 specifies two redundancy protocols designed to provide seamless recovery in case of single failure of an inter-bridge link or bridge in the network, which are based on the same scheme: duplication of the LAN, resp. duplication of the transmitted information. This second edition cancels and replaces the first edition published in 2010. It constitutes a technical revision. The main changes with respect to the previous edition are: – specification of the interconnection of PRP and HSR networks; – introduction of a suffix for PRP frames; – clarification and modification of specifications to ensure interoperability; – slackening of the specifications to allow different implementations; – consideration of clock synchronization according to IEC 61588; – introduction of test modes to simplify testing and maintenance. This publication is to be read in conjunction with \/2.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nCONTENTS <\/td>\n<\/tr>\n
9<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms, definitions, abbreviations, acronyms, and conventions
3.1 Terms and definitions <\/td>\n<\/tr>\n
11<\/td>\n3.2 Abbreviations and acronyms
3.3 Conventions
4 Parallel Redundancy Protocol (PRP)
4.1 PRP principle of operation <\/td>\n<\/tr>\n
12<\/td>\nFigures
Figure 1 \u2013 PRP example of general redundant network <\/td>\n<\/tr>\n
13<\/td>\nFigure 2 \u2013 PRP example of redundant network as two LANs (bus topology)
Figure 3 \u2013 PRP example of redundant ring with SANs and DANPs
Figure 4 \u2013 PRP with two DANPs communicating <\/td>\n<\/tr>\n
15<\/td>\nFigure 5 \u2013 PRP RedBox, transition from single to double LAN <\/td>\n<\/tr>\n
17<\/td>\nFigure 6 \u2013 PRP frame extended by an RCT
Figure 7 \u2013 PRP VLAN-tagged frame extended by an RCT <\/td>\n<\/tr>\n
18<\/td>\nFigure 8 \u2013 PRP constructed, padded frame closed by an RCT <\/td>\n<\/tr>\n
19<\/td>\nFigure 9 \u2013 PRP drop window on LAN_A
Figure 10 \u2013 PRP drop window reduction after a discard <\/td>\n<\/tr>\n
20<\/td>\nFigure 11 \u2013 PRP frame from LAN_B was not discarded
Figure 12 \u2013 PRP synchronized LANs <\/td>\n<\/tr>\n
21<\/td>\n4.2 PRP protocol specifications <\/td>\n<\/tr>\n
27<\/td>\nTables
Table 1 \u2013 PRP_Supervision frame with VLAN tag <\/td>\n<\/tr>\n
29<\/td>\n4.3 PRP service specification
Table 2 \u2013 PRP constants <\/td>\n<\/tr>\n
30<\/td>\nTable 3 \u2013 PRP arguments <\/td>\n<\/tr>\n
31<\/td>\nTable 4 \u2013 PRP arguments
Table 5 \u2013 PRP write <\/td>\n<\/tr>\n
32<\/td>\n5 High-availability Seamless Redundancy (HSR)
5.1 HSR objectives
5.2 HSR principle of operation
Table 6 \u2013 PRP read <\/td>\n<\/tr>\n
34<\/td>\nFigure 13 \u2013 HSR example of ring configuration for multicast traffic <\/td>\n<\/tr>\n
35<\/td>\nFigure 14 \u2013 HSR example of ring configuration for unicast traffic <\/td>\n<\/tr>\n
36<\/td>\nFigure 15 \u2013HSR structure of a DANH <\/td>\n<\/tr>\n
37<\/td>\nFigure 16 \u2013 HSR example of topology using two independent networks <\/td>\n<\/tr>\n
38<\/td>\nFigure 17 \u2013 HSR example of peer coupling of two rings <\/td>\n<\/tr>\n
39<\/td>\nFigure 18 \u2013 HSR example of connected rings <\/td>\n<\/tr>\n
40<\/td>\nFigure 19 \u2013 HSR example of coupling two redundant PRP LANs to a ring <\/td>\n<\/tr>\n
41<\/td>\nFigure 20 \u2013 HSR example of coupling from a ring node to redundant PRP LANs <\/td>\n<\/tr>\n
42<\/td>\nFigure 21 \u2013 HSR example of meshed topology <\/td>\n<\/tr>\n
43<\/td>\nFigure 22 \u2013 HSR structure of a RedBox <\/td>\n<\/tr>\n
44<\/td>\n5.3 HSR node specifications <\/td>\n<\/tr>\n
46<\/td>\n5.4 HSR RedBox specifications <\/td>\n<\/tr>\n
49<\/td>\n5.5 QuadBox specification
5.6 Association definition
5.7 Frame format for HSR <\/td>\n<\/tr>\n
50<\/td>\nFigure 23 \u2013 HSR frame without VLAN tag
Figure 24 \u2013 HSR frame with VLAN tag <\/td>\n<\/tr>\n
51<\/td>\nTable 7 \u2013 HSR_Supervision frame with optional VLAN tag <\/td>\n<\/tr>\n
52<\/td>\nTable 8 \u2013 HSR Constants <\/td>\n<\/tr>\n
53<\/td>\n6 Protocol Implementation Conformance Statement (PICS)
7 PRP\/HSR Management Information Base (MIB) <\/td>\n<\/tr>\n
57<\/td>\nAnnex A (informative) PRP duplicate discard algorithm as pseudo-code <\/td>\n<\/tr>\n
60<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Industrial communication networks. High availability automation networks – Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2012<\/td>\n62<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":244122,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[668,2641],"product_tag":[],"class_list":{"0":"post-244121","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-35-100-05","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/244121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/244122"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=244121"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=244121"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=244121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}