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How many object transfer objects can one Vista server handle?

How many object transfer objects can one Vista server handle?

Issue

How many object transfer objects can one Vista server handle?

Product Line

TAC Vista

Environment

Vista Server 

Cause

A network with optimized communication performance begins in the design phase. Understanding the limitations of connections objects can help determine logical and physical network structures. It can also be helpful in troubleshooting a network with communication problems.

Resolution

The question is how often the object transfer will run i.e transfer the value between the objects.

The bottleneck will be the communication load. The Vista server can handle a lot of object transfers, the problem will be on the LON bus.

Depending on what Lon network interface that is used in TAC Vista it can handle between 10-40 messages per second. For example a TAC Xenta 911 will usually handle around 10 messages per second and is only able to have one active telegram at the time. Where a Loytec interface can have up to 40 messages per second, and have various active telegrams at the same time.

That is the total load so graphics, online poll, watched objects and object transfer need to share this bandwidth.

 

So for example having a TAC Xenta 911 as a network interface and creating 100 Object transfer objects with a transfer rate of 10 seconds these objects will use all bandwidth on the Lon network.  

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