S+ PN800 PRP (Parallel Redundancy Protocol) IP Addressing
We are currently updated our site to S+ Ops 3.2 and Eng 2.2. Along with this update we are moving from our coax Infi-Net to an Ethernet PN800 network. We are having some difficulty getting a clear picture on how the PN800 network should be addressed for a PRP setup. ABB support tells us that the IP addresses should be the same for both network ports on a node (e.g. S+ Ops Server Network A and Network B have the same IP addresses). However, we are not clear as how this is setup because Windows doesn't allow same IP addresses on different network cards. Does S+ apply a software layer on the network cards to handle PRP traffic and does allow the same IP addressing, or is there something we are missing in the manual.
Asked 2 months ago
Answers
1
Hi, Servers (S+O or S+E) are single attached node (SAN), they can only be connected to either PN800A or PN800B, it is not allowed/possible to connect a server to both networks. PN800 devices (like SPC/HPC/PNI/ITP/ENM) are dual attached nodes (DAN), they are be connected to both PN800A and PN800B by the use of the PRP technology.
All DAN devices must have the same IP address on both PN800A and PN800B. Are you using PNI800 or VPNI?
Hope this helps, good luck.
All DAN devices must have the same IP address on both PN800A and PN800B. Are you using PNI800 or VPNI?
- VPNI can only communicate on one of the networks to the controllers, ref user manual 2VAA003419 E;
"NOTE: Currently, VPNI works on a single network interface and therefore it requires only one Ethernet port on the computer that runs VPNI" - PNI800 modules communicates redundantly on PN800A/B to all controllers, however the server that controls the PNI800 is either connected to PN800A or PN800B(not both).
To have redundancy you need minimum 2 servers and 2 PNI800, where half of servers are connected to PN800A and the other half on PN800B.
Hope this helps, good luck.
Answered 2 months ago
0
PN800 network supports IEC 624390-Clause 4 Parallel Redundancy Protocol, 2010 version(PRP-0 or PRP) for increased Ethernet network reliability.
Ethernet connection for the PNI800 is made on the MB805 mounting base. The two Ethernet ports on the MB805 are used for Ethernet line redundancy.
For more information, refer to 2VAA001719 document.
Ethernet connection for the PNI800 is made on the MB805 mounting base. The two Ethernet ports on the MB805 are used for Ethernet line redundancy.
For more information, refer to 2VAA001719 document.
Answered 2 months ago
by adatta Rank: 2200 on 9/17/2019 6:51:20 AM | Like (0) | Report
Thank you both for the answers. In addition to some more feedback from ABB this clears up many questions we had. I just wish it was more clear in the documentation. I have asked for 2VAA002993 as suggested. Hopefully it is available. Thank you both.
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