S7 OPC-UA Server

Version 1.36

Function	Description
	Restarts all OPC servers
Server Name	Display name for internal administration
User Access	Authorized user groups are displayed. General and OPC administrators generally have access to each server
Everyone Access	E1 = Anonymous login enabled no display = only user groups assigned have access
URI	Address for the connection setup
OPC-Status	Status of the OPC server with the possibility of controlling the server
	When you move the mouse over the status image, a tooltip appears for the current status
	Status	Description
		Server has not started yet
		Server is started / stopped
		Server is active
		An error has occurred
	Action	Description
		Start OPC-Server
		Restart OPC-Server
		Stop OPC-Server

Create new server ():

When creating the OPC-UA server, you have the option to upload a certificate or to automatically create a certificate. The stored data is displayed automatically.

Example OPC server via TCP

• Server Name: Halle 1
• Transport: TCP
• Hostname: localhost
• Port: 20000
• Automatically create rejected user certificates:
• Generate new self-signed Certificate:
• Erlaubte Benutzergruppen: U1 and U3

After save:

The following entry appears in the overview:

After saving, you can start the server by clicking on.

Example OPC server via HTTP

• Server Name: Halle 1
• Transport: HTTP
• Hostname: localhost
• Port: 80
• URI Path: Halle1
• Benutzergruppen: U1 and U2

After save:

The following entry appears in the overview:

After saving, you can start the server by clicking on.

TIP:
If you have not already created the application as a service, or you are not running the application as an administrator, the following error message appears:

Since http connections run via a web service, you need administrative rights.

Add OPC user ():

Field	Description
Name	Free
Is Active	User can access the OPC servers
Certificate File	Upload certificate file
Zertifikatsdaten
Subject	Certificate number CN: common name DC =
Issuer	Certificate Issuer
Valid not before	valid from
Valid not after	Expiration date certificate
Fingerprint (SHA-1)	Fingerprint of the certificate

• Enter a name
• Download the certificate
• Set the desired authorization(s)
• Restart all OPC servers

If you have set the rejected certificates in the OPC server, you will see a connection attempt after a connection attempt. Following entry in your administration:

• Click the Edit icon

If you click on Download Certificate, you can get the certificate

• Open
• Save

• Check the box “Is active”
• Set the desired permission(s)
• Restart all OPC servers

With our free “OPC-Watch” tool, you can connect to OPC servers, which are standard OPC servers. This allows them to access prepared data and view and test settings from the OPC server.

All entries are automatically displayed as shown in “Data points”.

Connection via TCP:

Connection via HTTP:

    OpcCertificateManager.AutoCreateCertificate = true;
 
    OpcClient client = new OpcClient("opc.tcp://localhost:20000/");
    client.UserIdentity = new UserIdentity("MayerHans", "MayerHans");
    client.UseDomainChecks = false;
 
	//Zertifikat automatisch akzeptieren
    client.Configuration.SecurityConfiguration.AutoAcceptUntrustedCertificates = true;
 
    OpcNodeId nodeId = new OpcNodeId("Halle_1/Heizung/Lager", 2);
 
    client.Connect();
 
    Console.WriteLine("ReadNode: {0}", client.ReadNode(nodeId));
 
    try
    {       
       client.WriteNode(nodeId, 14);
    }
    catch (Exception ex)
    {
       Console.WriteLine(ex.Message);
    }
 
    Console.WriteLine("ReadNode: {0}", client.ReadNode(nodeId));
 
    client.Disconnect();
    Console.ReadKey(true);