Hi Again,

I am using the OPC Foundation.NetStandard.OPC.UA Version 1.4.370.12 . This is I am using to fetch the tags from OPCUA server . when We are trying to see the tags in UA Expert then its showing the data in view screen. But when we are trying to fetch the tag data in Code Application then its showing the error for some of the tags
Error Name : BadTooManySubscriptions. This error I am getting with the Tags which have little similar name and only different in the taxt with last 4 characters like example:

A01.Tags.Tag1
A01.Tags.Tag2
A01.Tags.Tag3

like above example the tags are present on certain OPCUA server. While fetching only the tags with little similar name are not able to add for the Subscription. Other Tags easily adding on Subscription.

Error is coming on subscription.Create();

When I have tried to analysis it then find out that its coming on the Tags having almost similar name or big length Name of Tag.

Can you Please give me detail what will be the reason for Error BadTooManySubscriptions.?

We are connect the OPCUA server using the TCP Connection through IP address.

Please guide what will be reason for the issue.

Thanks
Saurav Sharma

-Hi

I am also using OPCUa .
I am also getting this error of BadTooManySubscriptions. This error I am getting with the Tags which have little similar name and only different in the taxt with last 4 characters like example:

A01.Tags.Tag1
A01.Tags.Tag2
A01.Tags.Tag3

like above example the tags are present on certain OPCUA server. While fetching only the tags with little similar name are not able to add for the Subscription. Other Tags easily adding on Subscription.

Error is coming on subscription.Create();

Please suggest what will be cause of this problem

One more thing the error is coming in case wher we have the subscription.DisplayName Length is greater than 50/60 characters.

Can anyone help in this as I am not able to understand what is the problem coming in this.

Thanks
Saurav Sharma

Thank you for your answer.

I tried changing my IP address and this way it works.
The server probably keeps track of the number of subscriptions made by the IP address.

I found other open OPC UA servers on this link

github.com/node-opcua/node-opcua/wiki/publicly-available-OPCUA-servers

which seems to work fine.

Hello,
the problem occurs when i try to subscribe to any of the objects on the OPC UA server even using the OPC UA Demo Application and subscribing to the preset EndPoint and Node.

OpcLabs.EasyOpc.UA.UAServiceException: OPC-UA service result - (no description available) = BadTooManySubscriptions.
---- SERVICE RESULT ----
StatusCode: {BadTooManySubscriptions} = 0x80770000 (2155282432)

The strange thing is that the program used to work just fine a week ago.
I've already tried reinstalling quickOPC. Any advice?