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How to create an array in
May 30, 2021
3:31, EEST
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SudhakarK
India
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Hi! I am working with Prosys tools. So, I am using Prosys OPC UA Simulation Server and Prosys OPC UA Monitor (free edition). As I understand, we can use the Simulation Server to create objects which can be simulated on the server. Next, we can use the Monitor to read those objects. For my project, I wish to create an array object (for example, [1, 2.5, 9.0] or [True, False]) in the Simulation Server. Accordingly, I plan to read this array and modify its elements. Could you please educate me on how to simulate an array in the Prosys OPC UA Simulation Server? Please note that I wish to modify the elements of this array by using a Python OPC-UA client.

Sudhakar Kumar
IIT Bombay

May 31, 2021
12:54, EEST
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Markus Johansson
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Hi,

Simulation Server doesn’t support adding array type Variables in the Simulation view. However, there are some example array variables in the Objects/StaticData folder on the server that can be used for testing. You can also create the Variables you need in an information model NodeSet (for example using UaModeler) and import it into Simulation Server.

June 2, 2021
4:28, EEST
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SudhakarK
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Markus Johansson said
Hi,

Simulation Server doesn’t support adding array type Variables in the Simulation view. However, there are some example array variables in the Objects/StaticData folder on the server that can be used for testing. You can also create the Variables you need in an information model NodeSet (for example using UaModeler) and import it into Simulation Server.  

Thanks for your response. May I know how to locate the Objects/StaticData folder on the server? I tried finding it, but I could not find it.

Sudhakar Kumar
IIT Bombay

June 2, 2021
17:25, EEST
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Markus Johansson
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You should find in the address space of Simulation Server under the main “Objects” folder a folder named “StaticData”. Note that this is not visible in the Simulation view, but you can see it in the Address Space view or with a OPC UA client. It is also possible that you have removed it. You can check in the Namespaces view in Simulation Server that you have the namespace with URI “http://www.prosysopc.com/OPCUA/StaticNodes” and that it is enabled.

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