Can you give me a script that can do this work easily?

You are trying to set the project parameters of the UNICLASS system code to the pipework and give it a value. I want to set the same UNICLASS codes that appear in the piping properties to the UNICLASS code parameter values that appear in the piping system properties, but I’m having a lot of trouble with this, so I’d like to know how to enter this using Dynamo.Attached is a picture of what we want to do.

You can get the system from any of the elements assigned to it by querying the parameter. From there you just match up the parameter names and values.

Thank you for your answers. Could you please tell me how to put that script together? Still Dynamo
I am still a beginner in Dynamo and I am still learning.

I am having trouble making it from here.
There are many elements, for example, “Fuel oil supply systems” for the value of the parameter “Classification.Uniclass.Ss.Description” created with the shared parameter, Uniclass for “Fuel oil supply systems”. Ss.Number" and “Ss_55_50_47_32” as the value of the parameter “Classification.Uniclass.Ss.Number”, which was also created as a shared parameter, but the properties displayed in the piping system tab after selecting the pipeline also contain " Classification.Uniclass.Ss.Description" and “Classification.Uniclass.Ss.Number”.
Classification.Uniclass.Verstion’ are displayed and we want to assign the same values to these parameter values. There are approximately 3500 piping elements parameterised in this way. The breakdown is 75 system types and 41 piping types. The purpose of this work is to pre-set the Uniclass system name and code number for the piping system type and to create a template.

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That’s one part. You can either get the PipingSystems from Element Types and All Elements of Type to match up the names or you can go the easy route and use the MEPover package. MEPover has a bunch of custom nodes for interacting with MEP components, including nodes to get the system from an element or all elements in the system.

Thank you for your detailed answers. It may still be difficult with my skills, but I will try my best. I’m sure I’ll post again if I come across something I don’t understand. I would appreciate it if you could answer my questions then.