how to connect GPS Ethernet communication on the ABB network?

Good afternoon,

I have a GPS system on the equipment and I would like to connect this equipment on an ethernet network using the ABB network. it is possible? what precautions should i take to avoid generating network failures?

Thank you very much in advance

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wanderson.vieira2 Rank: 1836

Asked 6 months ago

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Hi,
I suppose that should be possible, may be using SNTP.
You didn't provide so much details, even your control system type. Ethernet network and ABB network are so common definitions ! You have to know the protocols used. In case it is 800xA, I could recommend to look for details in System 800xA Network Configuration user guide.

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by wanderson.vieira2 Rank: 1836 on 8/22/2020 6:42:57 AM | Like (0) | Report

There is limits data traffic in 800xa? have a forum saying that some equipment 800xa work 800k per seconds abd other models 1600k per seconds.
I have a computer on the network at the same time every day, sending a broadcast message and increasing traffic on the 800x network, bringing the network down to normal, 1 hour later. at first what they found were two computers with MAC conagetc and Adlink after turning off these devices the network went up.

by kstoilov AKS expert

Rank: 5 on 8/23/2020 2:07:10 AM | Like (1) | Report

Hi, I'm not quite sure if got correctly your question.
If you are talking about control network, processors PM85x and PM86x support 10Mbps half duplex, so the control network is limited to that speed. Usually the client network is used for connection between the servers and workplaces, if it is not mixed with the control network.
For sure you have to keep both networks "clean" from external devises, which could create unnecessary traffic. If you want to have such nodes, that is so called plant network. All this is described in details in the manual in my answer.
If you are talking for GPS NTP Server, it should not create a traffic by itself. It depends now many devises are "calling" the NTP Server for time synchronization and at which intervals.

by wanderson.vieira2 Rank: 1836 on 8/23/2020 5:36:38 AM | Like (0) | Report

Good Morning,

How do I download the document System 800xA, Network Loops and Storm Protection, 3BSE060651?
The network went down due to a lot of data traffic on the network. used the RNRP monitoring software, found no LOOP problem on the network. the problem occurred after a broascast storm. data traffic increased. Has a question about RNRP LOOP detection. e'commented on data limitation on the network. follow the comment below

"The following technical description is a good starting point:

System 800xA, Network Loops and Storm Protection, 3BSE060651

A revision of that document is underway, there are some minor factual errors that will be corrected in the upcoming revision.

After reading it you will understand that ABB equipment has different methods to protect itself against network loops and storms and that it has changed over time and through versions.

- Loop Detection (all nodes since v4.0)

- Loop Protection

- Storm Protection (only AC 800M since v5.1)

RNRP detect loop when it sees the *same* routing telegram too many times. Each routing telegram has a sequence number which allow receivers to tell if the telegram is a replica of a previous, or is new. Each emitted sequence number should be unique on the network for several minutes until the counter wraps.

Currently, thirteen (13) replicas within 500 ms are required to detect a loop.

RNRP routing telegrams are multicasted and will likely enter an endless resending loop if the network contain a loop. Spanning Tree or Rapid Spanning Tree is *way* too slow to detect this problem before the controllers, etc. will close their ports. ABB recommend using proprietary L2 redundancy protocols, e.g. HiPER ring of Hirschmann or FRNT of Westermo. STP or RSTP does not really belong in a control system; but could be left enabled in switches, etc. as a *slow acting* loop resolver.

AC 800M Storm Protection is a complete different feature. It measures the rate of telegrams (any kind or source) and disables the interface when a certain threshold is reached. Different hardware have different thresholds which vary between 800 and 1600 telegrams per second. Storm Protection has *replaced* Loop Protection in recent AC 800M firmware. Loops are still sensed and reported by RNRP, but does not trigger blocking of any interface."
Which firmware version of the AC800m replaces the protective loop with storm protection?

Wanderson Morais

by kstoilov AKS expert

Rank: 5 on 8/23/2020 7:06:57 AM | Like (0) | Report

I'm sorry. That is not in my area of expertise. I don't see connection with GPS here

by wanderson.vieira2 Rank: 1836 on 8/23/2020 7:53:41 AM | Like (0) | Report

Who can help me?
Was generating an NSP error in the controller

NSP: Blocking Ethernet Port CN1 at mimit 800 pkt / s
NSP: Unblocking Ethernet port CN1 at limit 800 pkt / s

The NSP (Network Storm Protection) log indicates high network traffic on the CN1 port of the controller or Loop Detection on the network being replicated in the latter case in the RNRP log. Thus, we analyze logs in the RNRP using the 800xA tool the RNRP Fault Tracer using option 1

Where we conclude that there is no information relating to Loop in the control network or in the client server network.
Concluding in this way that the NSP is due to the high traffic in the control network on the CN1 ports of the controllers.

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kstoilov

Rank: 5

Answered 6 months ago

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