public static void Main()
{
using (var client = new OpcClient("opc.tcp://localhost:4840")) {
client.Connect();
Console.WriteLine("Connected!");
Console.WriteLine("Press any key to add a new 'Speed' node with history to the 'Machine' node.");
Console.ReadLine();
var result = client.AddNode(new OpcAddDataVariableNode <int>(
name: "Speed",
nodeId: OpcNodeId.Null, // the server shall define it
parentNodeId: "ns=2;s=Machine")
{
//IsHistorizing = true,
Value = 1000,
AccessLevel = OpcAccessLevel.CurrentReadOrWrite | OpcAccessLevel.HistoryReadOrWrite,
UserAccessLevel = OpcAccessLevel.CurrentReadOrWrite | OpcAccessLevel.HistoryReadOrWrite,
});
if (result.IsBad)
{
Console.WriteLine(result.Description);
}
else
{
Console.WriteLine(
"Enter a number and press enter to write it as the new speed value "
+ "which is also added to the history.");
while (int.TryParse(Console.ReadLine(), out var speed))
{
client.WriteNode(result.NodeId, new OpcValue(speed, DateTime.UtcNow));
}
}
}
}
public static void Main()
{
using (var client = new OpcClient("opc.tcp://localhost:4841")) {
client.Connect();
client.SubscribeEvent("ns=2;s=Machine/Jobs", HandleJobsEvent);
while (true)
{
Console.WriteLine("Press any key to schedule a new job.");
Console.ReadLine();
var jobsNode = client.BrowseNode("ns=2;s=Machine/Jobs");
var job = $"JOB{GetLastJob(jobsNode) + 1:D2}";
client.AddNode(new OpcAddDataVariableNode <int>(
name: job,
nodeId: OpcNodeId.Null,
parentNodeId: jobsNode.NodeId,
value: 0));
Console.WriteLine($"CLIENT: New job '{job}' schedulded.");
}
}
}