redundant network port B in CP800

How to configure redundant network port B in CP800 ?

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ahmed.gaber Rank: 321

Asked 3 months ago

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Hi,
Follow the steps mentioned in the CP800 latest firmware manual.
To make it simple, connect using serial cable (Tera term) and just remove/update the port A ip and come out. Again change\update the ip address of both the ports together at the same time and come out.

Regards,
Farooq

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frqahmed Rank: 128

Answered 3 months ago

Hi, the short answer is you cannot.

Both network port (A/B) on PN800 devices are identical with respect to IP and MAC address, backup CP800 will get IP address N+1.

So if you have already configured the CP800 according to 2VAA001586 chapter 10 successfully, you then have configured PN800 port A & B.

Br
HP

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by ahmed.gaber Rank: 321 on 1/8/2021 7:38:20 AM | Like (0) | Report

So No need for second network swtich?
How can I fullfil network redundancy with cp800?

by hpg Rank: 66 on 1/8/2021 1:10:28 PM | Like (0) | Report

As stated in the user manual:
The PN800 network supports IEC 62439 Parallel Redundancy Protocol, 2010 version (PRP-0 or PRP) for increased Ethernet network reliability. The benefits of PRP include network redundancy and seamless failover caused by single point
of failure.
Two independent LANs are used to provide this redundancy and seamless failover. The CP800 sends a copy of each outgoing message to the destination nodes simultaneously over each independent LAN. The destination node accepts the first message received and discards the duplicate message. This architecture ensures that, as long as one LAN is working, the destination always receives the message.
******
All PN800 device's are connected to both networks, A port to the A network & B port to the B network. A and B network MUST at all times be independent, no connection between the the networks are permitted.
All PN800 device's (PNI800, SPCxxx, IEB800, ENM01 and CP800) has the same IP/MAC on both NW.

Look into what the user manual describes, google PRP, hopefully that should make it clearer.

https://en.m.wikipedia.org/wiki/Parallel_Redundancy_Protocol

Would also recommend you to attend one of ABB's training courses, there you will learn all about this topic and get input on how to best design an plant network.

by ahmed.gaber Rank: 321 on 1/8/2021 1:16:43 PM | Like (0) | Report

Yes I Get this point
But how can I put ip for Port B
In my case i have primary network 192.168.1.0
I give the controller ip 192.168.1.40
Second network is 192.168.2.0
I want to give ip 192.168.2.40 to Port b in cp800
My question how can I do this step?

by hpg Rank: 66 on 1/8/2021 1:41:44 PM | Like (0) | Report

You cannot, same IP on both networks!!
Please study the usermanual and participate in an ABB training course. One should absolutely not design an control network purly based on input from a public forum...

( one last hint, look at chapter 10.1.1 in the user manual where it is described what the two last octets in the IP address are used for)

by Hans-Ulli.Kroll Rank: 226 on 1/8/2021 3:38:04 PM | Like (2) | Report

Here a more technical description.
including what's going on on the wire ...
https://www.zhaw.ch/storage/engineering/institute-zentren/ines/forschung-und-entwicklung/time-synchronisation/tutorial-on-prp.pdf

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hpg Rank: 66

Answered 3 months ago

Source: 2VAA001586

Dear CP800s PN800 Port A & Port B uses PRP Protocol that internally acts a single network interface, so you dont need to worry about the other Port.

In the Redundant Configuration the only point you need to take care is os SW2 POLE 3 that should be ON, this will automatically create Network Redundancy.

Please share the CP800 Firmware and your IP Range

Also Note that you cant keep your Node address as 0.

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itron Rank: 123

Answered 3 months ago

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redundant network port B in CP800

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