OPC UA Server publishing cycles | OPC UA Standard | Forum

Lost password?

Home Forum OPC UA Standard OPC UA Server publishing cycles

OPC UA Server publishing cycles

OPCUA USER

Member

Members

Forum Posts: 53

Member Since:
01/07/2022

Offline

05/08/2024 - 22:38

Hi,

I have developed OPC UA SERVER application using CSharp(C#) language.

I have one requirement: OPC UA server shall send all notifications of value change of a variable between 2 notification publishing cycles

How to implement this?

Randy Armstrong

Admin

Forum Posts: 1564

Member Since:
05/30/2017

Offline

05/09/2024 - 01:00

The client has to set a QueueSize = (PublishingInterval/SamplingInterval) +1

OPCUA USER

Member

Members

Forum Posts: 53

Member Since:
01/07/2022

Offline

05/20/2024 - 00:25

Where do we need to set PublishingInterval and SamplingInterval? Server or client?

is therse parameters related to client or server?

Randy Armstrong

Admin

Forum Posts: 1564

Member Since:
05/30/2017

Offline

05/20/2024 - 07:51

They are parameters passed by the client to the server.

Read up on the Subscription model:

https://reference.opcfoundatio.....ocs/5.12.1

OPCUA USER

Member

Members

Forum Posts: 53

Member Since:
01/07/2022

Offline

05/30/2024 - 04:54

I have updated QueueSize for specific variable (PublishingInterval/SamplingInterval) +1 in client side.

PublishingInterval = 500ms

SamplingInterval = 250

So QueueSize = 3.

Now My question is how to validate this requirement?

Randy Armstrong

Admin

Forum Posts: 1564

Member Since:
05/30/2017

Offline

05/31/2024 - 00:32

Create an MSTest project and create a client that verifies the behavior.

You could also use the CTT but you would have to review the tests and figure out which one tests the behavior you need.

Forum Timezone: America/Phoenix

Most Users Ever Online: 510

Currently Online:

Guest(s) 24

Currently Browsing this Page:
1 Guest(s)