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.

Subscription Events are wrong order

Start
Prev
1
Next
End

1

support
Offline
Moderator

More

22 Aug 2017 14:18 #5448 by support

Replied by support on topic Subscription Events are wrong order

Our client component is designed to deliver the event notifications to your code in the order it receives them from the server. I therefore suggest that you consult with the server vendor, because I think the order you are seeing is the order the server sent them to us.

This said, there is no "sequencing" requirements in OPC UA standard that would require the server to use any particular order, anyway. It is up to them how they implement it.

Regards

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

Dq-soft
Topic Author
Offline
Premium Member

More

22 Aug 2017 13:01 #5447 by Dq-soft

Subscription Events are wrong order was created by Dq-soft

Hello,

i created a subsription to monitore 2000 variables.

to test i send every 100 MS the first 100 variables ascended by 1
eg.
V1 1
V2 1
...
V100 1
V1 2
V2 2
...
V100 2

The sending is done with WriteMultiplevalues
On serverside everything is fine but on Client side i
get the ondatachangenotification Event fired in a strange order

See testevent.csv for details