protected override IEnumerable <IOpcNode> CreateNodes(OpcNodeReferenceCollection references)
{
var machineNode = new OpcObjectNode(this.DefaultNamespace.GetName("Machine"));
this.jobsNode = new OpcFolderNode(machineNode, "Jobs");
references.Add(machineNode, OpcObjectTypes.ObjectsFolder);
// Add some predefined jobs.
new OpcDataVariableNode <int>(this.jobsNode, "JOB01", value: 0);
new OpcDataVariableNode <int>(this.jobsNode, "JOB02", value: 0);
new OpcDataVariableNode <int>(this.jobsNode, "JOB03", value: 0);
// Define a generic event to notify about job-scheduled.
this.jobScheduldedEventNode = new OpcEventNode(this.jobsNode, "JobSchedulded");
this.jobScheduldedEventNode.Severity = OpcEventSeverity.Medium;
this.jobScheduldedEventNode.Message = "The job has been schedulded.";
this.jobsNode.AddNotifier(this.SystemContext, this.jobScheduldedEventNode);
// Define a generic event to notify about job-completed.
this.jobCompletedEventNode = new OpcEventNode(this.jobsNode, "JobCompleted");
this.jobCompletedEventNode.Severity = OpcEventSeverity.Medium;
this.jobCompletedEventNode.Message = "The job has been completed.";
this.jobsNode.AddNotifier(this.SystemContext, this.jobCompletedEventNode);
return(new IOpcNode[] { machineNode });
}
protected override IEnumerable <IOpcNode> CreateNodes(OpcNodeReferenceCollection references)
{
var variableNodes = new OpcObjectNode("MyVariables");
references.Add(variableNodes, OpcObjectTypes.ObjectsFolder);
var simpleVariableNodes = new OpcObjectNode(variableNodes, "Simple");
new MySimpleVariableNode(simpleVariableNodes, "Var01", 1);
new MySimpleVariableNode(simpleVariableNodes, "Var02", 2);
var complexVariableNodes = new OpcObjectNode(variableNodes, "Complex");
new MyComplexVariableNode(complexVariableNodes, "Var01", "A");
new MyComplexVariableNode(complexVariableNodes, "Var02", "B", 42);
var objectNodes = new OpcObjectNode("MyObjects");
references.Add(objectNodes, OpcObjectTypes.ObjectsFolder);
var simpleObjectNodes = new OpcObjectNode(objectNodes, "Simple");
new MySimpleObjectNode(simpleObjectNodes, "Object01");
new MySimpleObjectNode(simpleObjectNodes, "Object02");
var complexObjectNodes = new OpcObjectNode(objectNodes, "Complex");
new MyComplexObjectNode(complexObjectNodes, "Object01");
new MyComplexObjectNode(complexObjectNodes, "Object02");
return(new[] { variableNodes, objectNodes });
}
protected override IEnumerable <IOpcNode> CreateNodes(OpcNodeReferenceCollection references)
{
// We just want to define a simple "entry point" for client added nodes.
var machineNode = new OpcObjectNode(this.DefaultNamespace.GetName("Machine"));
references.Add(machineNode, OpcObjectTypes.ObjectsFolder);
return(new IOpcNode[] { machineNode });
}
protected override void ImplementNode(IOpcNode node)
{
if (node is OpcObjectNode objectNode && node.Name.Value == "Alerts")
{
this.alertsNode = objectNode;
}
base.ImplementNode(node);
}
protected override IEnumerable <IOpcNode> CreateNodes(OpcNodeReferenceCollection references)
{
var machineNode = new OpcObjectNode(this.DefaultNamespace.GetName("Machine"));
new VariableNode <int>(this, machineNode, "Status", value: 42);
new VariableNode <string>(this, machineNode, "Job", value: "JOB-0543");
new VariableNode <bool>(this, machineNode, "Shutdown", value: false);
new VariableNode <short>(this, machineNode, "Speed", value: 1000);
new VariableNode <string>(this, machineNode, "Tooling", value: "cutter");
references.Add(machineNode, OpcObjectTypes.ObjectsFolder);
return(new IOpcNode[] { machineNode });
}
public static void Main(string[] args)
{
temperatureNode = new OpcDataVariableNode <double>("Temperature");
speedNode = new OpcDataVariableNode <int>("Speed");
var machineNode = new OpcObjectNode(
"Machine",
temperatureNode,
speedNode,
new OpcActionMethodNode("StartMachine", StartMachine),
new OpcActionMethodNode("StopMachine", StopMachine));
using (var server = new OpcServer("opc.tcp://localhost:4840/", machineNode)) {
server.Start();
machineNode.AddNotifier(server.SystemContext, temperatureNode);
machineNode.AddNotifier(server.SystemContext, speedNode);
Console.WriteLine("Server started - press any key to exit.");
Console.ReadKey(true);
}
}
