// This example shows how to subscribe to all dataset messages on an OPC-UA PubSub connection, and process them using
// a callback method.
//
// In order to produce network messages for this example, run the UADemoPublisher tool. For documentation, see
// https://kb.opclabs.com/UADemoPublisher_Basics . In some cases, you may have to specify the interface name to be used.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
using System;
using System.Collections.Generic;
using System.Threading;
using OpcLabs.EasyOpc.UA.PubSub;
namespace UASubscriberDocExamples.PubSub._EasyUASubscriber
{
partial class SubscribeDataSet
{
public static void Callback()
{
// Define the PubSub connection we will work with. Uses implicit conversion from a string.
UAPubSubConnectionDescriptor pubSubConnectionDescriptor = "opc.udp://239.0.0.1";
// In some cases you may have to set the interface (network adapter) name that needs to be used, similarly to
// the statement below. Your actual interface name may differ, of course.
//pubSubConnectionDescriptor.ResourceAddress.InterfaceName = "Ethernet";
// Instantiate the subscriber object.
var subscriber = new EasyUASubscriber();
Console.WriteLine("Subscribing...");
subscriber.SubscribeDataSet(pubSubConnectionDescriptor, (sender, args) =>
{
// Display the dataset.
if (args.Succeeded)
{
// An event with null DataSetData just indicates a successful connection.
if (!(args.DataSetData is null))
{
Console.WriteLine();
Console.WriteLine($"Dataset data: {args.DataSetData}");
foreach (KeyValuePair<string, UADataSetFieldData> pair in args.DataSetData.FieldDataDictionary)
Console.WriteLine(pair);
}
}
else
{
Console.WriteLine();
Console.WriteLine($"*** Failure: {args.ErrorMessageBrief}");
}
});
Console.WriteLine("Processing dataset message events for 20 seconds...");
Thread.Sleep(20 * 1000);
Console.WriteLine("Unsubscribing...");
subscriber.UnsubscribeAllDataSets();
Console.WriteLine("Waiting for 1 second...");
// Unsubscribe operation is asynchronous, messages may still come for a short while.
Thread.Sleep(1 * 1000);
Console.WriteLine("Finished.");
}
// Example output:
//
//Subscribing...
//Processing dataset message events for 20 seconds...
//
//Dataset data: Good; Data; publisher="32", writer=1, class=eae79794-1af7-4f96-8401-4096cd1d8908, fields: 4
//[#0, True {System.Boolean} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#1, 7945 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#2, 5246 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#3, 9/30/2019 11:19:14 AM {System.DateTime} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//
//Dataset data: Good; Data; publisher="32", writer=3, class=96976b7b-0db7-46c3-a715-0979884b55ae, fields: 100
//[#0, 45 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#1, 145 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#2, 245 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#3, 345 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#4, 445 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#5, 545 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#6, 645 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#7, 745 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#8, 845 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#9, 945 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#10, 1045 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//...
}
}
// This example shows how to subscribe to all dataset messages on an OPC-UA PubSub connection, and process them using
// a callback method.
//
// In order to produce network messages for this example, run the UADemoPublisher tool. For documentation, see
// http://kb.opclabs.com/UADemoPublisher_Basics . In some cases, you may have to specify the interface name to be used.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.
module _EasyUASubscriber.SubscribeDataSet
open OpcLabs.EasyOpc.UA.PubSub
open System
open System.Threading
let Callback =
// Define the PubSub connection we will work with.
let pubSubConnectionDescriptor = new UAPubSubConnectionDescriptor()
pubSubConnectionDescriptor.ResourceAddress.ResourceDescriptor.UrlString <- "opc.udp://239.0.0.1"
// In some cases you may have to set the interface (network adapter) name that needs to be used, similarly to
// the statement below. Your actual interface name may differ, of course.
//pubSubConnectionDescriptor.ResourceAddress.InterfaceName <- "Ethernet"
// Instantiate the subscriber object.
let subscriber = new EasyUASubscriber()
Console.WriteLine("Subscribing...");
// The callback is a delegate that displays the value
let handle =
subscriber.SubscribeDataSet(
pubSubConnectionDescriptor,
new EasyUADataSetMessageEventHandler(
fun sender eventArgs ->
// Display the dataset.
if eventArgs.Succeeded then
// An event with null DataSetData just indicates a successful connection.
if eventArgs.DataSetData <> null then
Console.WriteLine()
Console.WriteLine("Dataset data: {0}", eventArgs.DataSetData)
for pair in eventArgs.DataSetData.FieldDataDictionary do
Console.WriteLine(pair)
else
Console.WriteLine()
Console.WriteLine("*** Failure: {0}", eventArgs.ErrorMessageBrief)))
Console.WriteLine("Processing dataset message events for 20 seconds...")
Thread.Sleep(20 * 1000)
Console.WriteLine("Unsubscribing...")
subscriber.UnsubscribeAllDataSets()
Console.WriteLine("Waiting for 1 second...")
// Unsubscribe operation is asynchronous, messages may still come for a short while.
Thread.Sleep(1 * 1000)
Console.WriteLine("Finished.")
// Example output:
//
//Subscribing...
//Processing dataset message events for 20 seconds...
//
////Dataset data: Good; Data; publisher="32", writer=1, class=eae79794-1af7-4f96-8401-4096cd1d8908, fields: 4
//[#0, True {System.Boolean} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#1, 7945 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#2, 5246 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#3, 9/30/2019 11:19:14 AM {System.DateTime} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//
//Dataset data: Good; Data; publisher="32", writer=3, class=96976b7b-0db7-46c3-a715-0979884b55ae, fields: 100
//[#0, 45 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#1, 145 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#2, 245 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#3, 345 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#4, 445 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#5, 545 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#6, 645 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#7, 745 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#8, 845 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#9, 945 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//[#10, 1045 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
//...
' This example shows how to subscribe to all dataset messages on an OPC-UA PubSub connection, and process them using
' a callback method.
'
' In order to produce network messages for this example, run the UADemoPublisher tool. For documentation, see
' https://kb.opclabs.com/UADemoPublisher_Basics . In some cases, you may have to specify the interface name to be used.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.
Imports OpcLabs.EasyOpc.UA.PubSub
Namespace PubSub._EasyUASubscriber
Partial Friend Class SubscribeDataSet
Public Shared Sub Callback()
' Define the PubSub connection we will work with. Uses implicit conversion from a string.
Dim pubSubConnectionDescriptor As UAPubSubConnectionDescriptor = "opc.udp://239.0.0.1"
' In some cases you may have to set the interface (network adapter) name that needs to be used, similarly to
' the statement below. Your actual interface name may differ, of course.
' pubSubConnectionDescriptor.ResourceAddress.InterfaceName = "Ethernet"
' Instantiate the subscriber object.
Dim subscriber = New EasyUASubscriber()
Console.WriteLine("Subscribing...")
subscriber.SubscribeDataSet(pubSubConnectionDescriptor,
Sub(sender, eventArgs)
' Display the dataset.
If eventArgs.Succeeded Then
' An event with null DataSetData just indicates a successful connection.
If Not eventArgs.DataSetData Is Nothing Then
Console.WriteLine()
Console.WriteLine("Dataset data: {0}", eventArgs.DataSetData)
For Each pair As KeyValuePair(Of String, UADataSetFieldData) In eventArgs.DataSetData.FieldDataDictionary
Console.WriteLine(pair)
Next
End If
Else
Console.WriteLine()
Console.WriteLine("*** Failure: {0}", eventArgs.ErrorMessageBrief)
End If
End Sub)
Console.WriteLine("Processing dataset message events for 20 seconds...")
Threading.Thread.Sleep(20 * 1000)
Console.WriteLine("Unsubscribing...")
subscriber.UnsubscribeAllDataSets()
Console.WriteLine("Waiting for 1 second...")
' Unsubscribe operation is asynchronous, messages may still come for a short while.
Threading.Thread.Sleep(1 * 1000)
Console.WriteLine("Finished...")
End Sub
End Class
' Example output
'
'Subscribing...
'Processing dataset message events for 20 seconds...
'
''Dataset data: Good; Data; publisher="32", writer=1, class=eae79794-1af7-4f96-8401-4096cd1d8908, fields: 4
'[#0, True {System.Boolean} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#1, 7945 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#2, 5246 {System.Int32} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#3, 9/30/2019 11:19:14 AM {System.DateTime} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'
'Dataset data: Good; Data; publisher="32", writer=3, class=96976b7b-0db7-46c3-a715-0979884b55ae, fields: 100
'[#0, 45 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#1, 145 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#2, 245 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#3, 345 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#4, 445 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#5, 545 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#6, 645 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#7, 745 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#8, 845 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#9, 945 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'[#10, 1045 {System.Int64} @0001-01-01T00:00:00.000 @@0001-01-01T00:00:00.000; Good]
'...
End Namespace
# This example shows how to subscribe to all dataset messages on an OPC-UA PubSub connection, and process them using
# a callback method.
#
# In order to produce network messages for this example, run the UADemoPublisher tool. For documentation, see
# https://kb.opclabs.com/UADemoPublisher_Basics . In some cases, you may have to specify the interface name to be used.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc
import time
# Import .NET namespaces.
from OpcLabs.EasyOpc.UA.PubSub import *
from OpcLabs.EasyOpc.UA.PubSub.OperationModel import *
def dataSetMessage(sender, e):
# Display the dataset.
if e.Succeeded:
# An event with null DataSetData just indicates a successful connection.
if e.DataSetData is not None:
print('')
print('Dataset data: ', e.DataSetData, sep='')
for pair in e.DataSetData.FieldDataDictionary:
print(pair)
else:
print('')
print('*** Failure: ', e.ErrorMessageBrief, sep='')
# Define the PubSub connection we will work with. Uses implicit conversion from a string.
pubSubConnectionDescriptor = UAPubSubConnectionDescriptor.op_Implicit('opc.udp://239.0.0.1')
# In some cases you may have to set the interface (network adapter) name that needs to be used, similarly to
# the statement below. Your actual interface name may differ, of course.
#pubSubConnectionDescriptor.ResourceAddress.InterfaceName = 'Ethernet'
# Instantiate the subscriber object.
subscriber = EasyUASubscriber()
print('Subscribing...')
IEasyUASubscriberExtension.SubscribeDataSet(subscriber,
pubSubConnectionDescriptor,
EasyUADataSetMessageEventHandler(dataSetMessage))
print('Processing dataset message events for 20 seconds...')
time.sleep(20)
print('Unsubscribing...')
subscriber.UnsubscribeAllDataSets()
print('Waiting for 1 second...')
# Unsubscribe operation is asynchronous, messages may still come for a short while.
time.sleep(1)
print('Finished.')