BS EN 62439-7:2012:2015 Edition
$215.11
Industrial communication networks. High availability automation networks – Ring-based Redundancy Protocol (RRP)
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 86 |
The IEC 62439 series of standards is applicable to high-availability automation networks based on the ISO/IEC 8802-3:2000 (Ethernet) technology.
This part of the IEC 62439 series specifies a redundancy protocol that is based on a ring topology, in which the redundancy protocol is executed at the end nodes, as opposed to being built into the switches. Each node detects link failure and link establishment using mediasensing technologies, and shares the link information with the other nodes, to guarantee fast connectivity recovery times. The nodes have equal RRP network management functions.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms, definitions, abbreviations, acronyms, and conventions 3.1 Terms and definitions |
| 12 | 3.2 Abbreviations and acronyms 3.3 Conventions |
| 13 | 4 RRP overview 4.1 General 4.2 Frame forwarding and receiving control Figures Figure 1 – Forwarding and receiving Ethernet frames |
| 14 | Figure 2 – Structures of ND and GWD |
| 15 | Figure 3 – LNM forwarding control Figure 4 – RNM forwarding control |
| 16 | 4.3 Link status monitoring 4.4 Error detection 4.5 Plug and play 4.6 Network management information base (NMIB) management Figure 5 – Link status information |
| 17 | 4.7 Network recovery 4.8 Automatic network configuration 4.9 RRP basic operating principle Figure 6 – A device operation in initialization phase |
| 18 | Figure 7 – Devices operation in line network establishing phase Figure 8 – Extension of line network operation |
| 19 | 5 RRP redundancy behaviours 5.1 Network topology Figure 9 – Ring network establishment operation Figure 10 – Ring to line network change operation |
| 20 | 5.2 Network recovery in ring network Figure 11 – Ring topology |
| 21 | Tables Table 1 – RRP network recovery parameter Table 2 – Parameters for calculation |
| 23 | Figure 12 – Link fault between neighbouring devices |
| 24 | Figure 13 – Link fault of remote device Figure 14 – Device fault on a RNM |
| 25 | 5.3 Automatic Ring Network Manager (RNM) election procedure |
| 26 | 5.4 Path management Figure 15 – Path management in a line topology network Table 3 – Path table of Device1 in a line topology network |
| 27 | Figure 16 – Path management in a ring topology network Table 4 – Path table of Device4 in a line topology network Table 5 – Path table of Device1 in a ring topology network |
| 28 | 5.5 Device address collision Figure 17 – RRP device address collision in a ring network Table 6 – Path table of Device3 in a ring topology network |
| 29 | 6 RRP class specification 6.1 General 6.2 Template Table 7 – Device address collision information |
| 31 | 6.3 Attributes |
| 36 | 7 RRP services specification 7.1 Set device information Table 8 – Parameters of set device information service |
| 38 | 7.2 Get device information Table 9 – Parameters of get device information service |
| 40 | 7.3 Get network information Table 10 – Parameters of get network information service |
| 42 | 7.4 Get path table information Table 11 – Parameters of get path table information service |
| 44 | 8 RRP protocol specification 8.1 General |
| 45 | 8.2 Ethernet header 8.3 Encoding of RRP_FrameHDR Figure 18 – Common MAC frame format for RRP DLPDU Table 12 – RRP Length/Type field |
| 46 | Table 13 – Version Table 14 – DST_addr |
| 47 | Table 15 – SRC_addr Table 16 – Network control message type Table 17 – Type of service |
| 48 | Table 18 – Priority Table 19 – Validation of extension code |
| 49 | 8.4 Encoding of data and pad Table 20 – Encoding of FamilyReq frame |
| 50 | Table 21 – Encoding of FamilyRes frame Table 22 – Encoding of MediaLinked frame |
| 51 | Table 23 – Encoding of AdvThis frame Table 24 – Encoding of LineStart frame |
| 52 | Table 25 – Encoding of RingStart frame |
| 53 | Table 26 – Encoding of AckRNMS frame |
| 54 | 8.5 Frame Check Sequence (FCS) 9 RRP protocol machine 9.1 Protocol state machine description Table 27 – Encoding of CheckRNMS frame |
| 56 | 9.2 Local parameters and variables for protocol state Table 28 – Variables to support device information management |
| 57 | Table 29 – Variables to support managing network information Table 30 – Variables to support device path information management Table 31 – Variables of Received RRP Frame |
| 58 | Table 32 – Local variables for protocol state Table 33 – Constants for protocol state |
| 59 | 9.3 State transitions Table 34 – RRP State transitions |
| 72 | 9.4 Function descriptions Table 35 – RRP Function descriptions |
| 77 | 10 RRP Management Information Base (MIB) |
| 83 | Bibliography |
