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For example, in Figure 4, the NodeClass attribute of the selected node is Variable. The attribute table shows the attributes of the node and their respective values. Both tables show the data from the node that is selected in the server address space browser tree.
3 Attributes and References View The attributes and References view consists of two tables: one to represent node attributes and another one to represent the node references. The desired server can then be selected in the dialog. If it is not possible to connect to the server but discovery works, the discovery dialog opens. v2.2.2 /13Ħ When the server URL, Security Options and UserID settings are set, the connection to the server can be established by clicking Connect to Server. The Simulation Server enables you to define test user accounts. You can change the user account after connection as well. Defining the user authentication mode and user account. It can be applied also when the connection is established to impersonate the session to a new user account. The user authentication setting can be selected by clicking the tool button in the upper right corner of the GUI (see Figure 2). The certificate file and private key can be searched in the hard disc using a file explorer provided by the GUI. If "Certificate and Private Key" is selected, the user is identified by an X509v3 Certificate File and its Private Key.
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The user is asked to type the user name and password in separate text fields in the GUI. If "Username and Password" is selected, a user is identified by user name and password. Certificate and Private Key If "Anonymous" is selected, user information is not made available. The user authentication process is performed during the session establishment with the server. UserID options can be set before or after connecting to provide proper authentication settings. If "Basic256" is selected, a suite of algorithms that uses 256-Bit for encryption algorithms is used. If "Basic128RSA15" is selected, a suite of algorithms that uses RSA15 as Key-Wrap-algorithm and 128-Bit for encryption algorithms is used. Basic Basic256SHA256 v2.2.2 /13ĥ If "None" is selected, a suite of algorithms that does not provide any security settings is used.
There are multiple security policies available (see Figure 3): 1. Figure 3: Security Settings Security policy determines the algorithm for signing and encrypting. Encryption makes it hard for third parties to read the content of the messages. If the selected Security Mode is "Sign & Encrypt", the message is also encrypted with the Public Key of the server's Application Instance Certificate. Signing the message allows detecting if it has been manipulated by an untrusted third party. If "Sign" is selected, the message is signed with the associated Private Key of the Application Instance Certificate of the client application. Sign & Encrypt If the selected Security Mode is "None", the OpenSecureChannel request is not secured at all. There are three different Security Modes available: 1. When connecting, the client application sends an OpenSecureChannel request secured in accordance to Security Mode and Security Policy to the selected Session Endpoint of the server. If you run the OPC UA Java Server locally, you can connect to it using this URL: v2.2.2 /13Ĥ 2.1 Security Options Security options can be set before connecting to a server by clicking the padlock icon below server tabs.
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You can download Prosys OPC UA Simulation Server in and run it locally, or connect to a remote server running in our premises. Figure 1: OPC UA Client Overview 1 OPC UA Servers There are a couple of different test server options provided by Prosys OPC.
Figure 1 illustrates the overview of the OPC UA Client. The GUI includes tabbed pages called Attributes and References to explore node attributes and references, Data View tabbed page for monitoring nodes and writing values to them, History View to explore historical data of nodes and create charts of it, and Events View to monitor events and alarms sent by servers and Event History View for requesting history of events from the servers. Data of each server is represented using a browser tree on the left side of the GUI. Alarms & Conditions With the OPC UA Client you can have multiple secure server connections and manage them using tabbed pages. It implements the three OPC UA information models: 1.
#Prosysopc uaclient to kepware manual
1 Prosys OPC UA Client User Manual Version: Contents 1 OPC UA Servers Connecting to Server Security Options Attributes and References View Browsing via References Data View History View Event View Event History View Calling a Method v2.2.2 /13Ģ Prosys OPC UA Client User Manual Prosys OPC UA Client is a generic purpose OPC UA client.
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