Professional OPC
Development Tools

logos

Online Forums

Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see links in upper right corner) in order to Post questions. You do not have to be a licensed user of our product.

Please read Rules for forum posts before reporting your issue or asking a question. OPC Labs team is actively monitoring the forums, and replies as soon as possible. Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.

Do not use the Contact page for technical issues.

Too Many Subscriptions exeption

More
16 Oct 2018 19:29 #6751 by 333nt
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.

Please Log in or Create an account to join the conversation.

More
16 Oct 2018 19:17 #6750 by support
Hello,

this appears to be a problem on the side of the demo server itself, not QuickOPC client.
We are already aware of the issue.

Either the demo server is simply used by too many genuine users - in which case we would increase the limits; or, it may be under kind of DoS (denial of service) attack - in which case we would take some countermeasures. Please give us some time to resolve this.

The demo server gets restarted regularly, so you may just retry later and be lucky so see it working.

Best regards

Please Log in or Create an account to join the conversation.

More
16 Oct 2018 18:55 #6749 by 333nt
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?

Please Log in or Create an account to join the conversation.

Moderators: support
Time to create page: 0.125 seconds