I am trying to run a script in an expression tag. I tried using the runScript() expression function but it is giving me the following tag error: Error_ExpressionEval("Error executing script for runScript() expression:Utils.getCardDataset") Here is my following implementation: [image] I am refer…

This project must be configured as the Gateway Scripting Project in order for tag scripts to reference the script library. https://docs.inductiveautomation.com/display/DOC81/Project+Library#ProjectLibrary-GatewayScriptingProject

[image] Cole_Townsend: as I can run it successfully from the Script Console. This is not a good test for anything in gateway scope, as it is a derivative of Vision Client scope.

Am I missing something here? I do not have the config option for the gateway scripting project under Gateway Settings. Is this a licensing issue? I am running Ignition Edge 8.1.24

Edge doesn't have a 'Gateway Scripting Project' setting, because Edge only allows one project. Do you have the compute plugin installed/are you in a valid trial? That could be why the script isn't allowed to run.

No, I do not have the compute plugin installed. I'm guessing that's a full stop on me trying to do this without it. The actual functionality that I am trying to do is to have opc data populated in this dataset. My initial thought was to return a dataset from a script that populates a python dataset…

Why can't you just have 200 tags?

I could, but I was interested in using a dataset as it would be a little more dynamic and less cluttered than having x number of tags. It would also allow me to work with my data a little more intuitively as I can have rows in the dataset representing specific data points. It is seeming like that is…

Some of the newer drivers support arrays, but our Modbus driver is pretty old and doesn't. Dataset isn't a natural mapping for anything that would come from OPC except perhaps a 2-dimensional array, and even then there's no obvious column name or type that can be applied. It only makes sense to bui…

Yeah, the script I have written is the perfect solution to the problem. Just not able to use it atm due to licensing. Here is the code I used to do it for anyone trying to do something similar: def getCardDataset(driveName): server = "Ignition OPC UA Server" opcPaths = [] for x in range(200): …

Has scripting ever been considered as an official ValueSource for a tag, similar to how an expression is? Now that I am thinking about it, I wonder if I can run this function in the runScript() expression function as a one-liner. Does the runScript() function work with lambdas?

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Expression runscript() not working properly

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