OPC UA Information

[filou]

Hi,

I use the function "OPC UA Client/Server".
I created a network with 2 servers and 1 client (3 panels iXTA70).
The main goal is to save/load a large number of tags from the 2 servers in the client recipes.
This works very well !!

For information, I would like to know the limits of the OPC UA:
- in a network, is-there a limited number of Client / Server ?
- Is-there a limitation in the number of Tags to be exchanges ?
If you have additional information, i'm interested.

Regards
filou

[mark.monroe]

Hi Filou,

There are no limits to the number of tags that the OPC UA server or a client can exchange. The OPC UA server has a maximum limit of 20 connections. That means that there is a maximum of 20 connected clients to a single OPC UA server at one time.

[rohit Kadam]

If i want to connect more than 20 OPC UA Server HMI to 1 OPC UA Client PC configuration.
Then how it will be possible using IX Developer.

[mark.monroe]

If you have 20 HMI's and 1 PC client, then each HMI will only have 1 connection to them. The limit on the HMI's number of clients is 20.

You may run into a limit on the PC client side as you will be connecting to 20 or more OPC UA servers.

[rohit Kadam]

This means i can connect more than 20 OPC UA server HMI to single OPC UA client PC.
Limitations of 20 is only for OPC UA client connected to OPC UA Server.

But in our case we are using multiple OPC UA server with single OPC UA Client. So as per your reply there not be any problem for this configuration.

How many OPC UA server can connect to single OPC UA Client?
Thanks for immediate reply.

Regards,
Rohit