Using if statement to change text in tag

[stacey.hennigL6B3T]

I have a pipe tag that i am trying to get it to change the text displayed by using an "if" statement. i want to be able to tag a pipe and then it display specific text depending on the system type. eg: if the system type name is "sanitary drainage" i want the text to display as "SD". 

is this possible? i tried using "if(system type = sanitary drainage, SD, XX) but it cannot read the system type from within the family type. 

any help is mucho appreciated 

[craigjonnson]

Hi, you cant run expression statements based on objects outside of the family. Why not edit the tag to read the System Abbreviation, then add size or whatever after.

[stacey.hennigL6B3T]

Thanks for the response, I neglected to mention that the file is a linked revit file from a separate contractor. we do not have access to change the system abbreviation (what we usually use). So I need to find a way to change the output of the text

[iainsavage]

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@stacey.hennigL6B3T  schrieb:

the file is a linked revit file from a separate contractor. we do not have access to change the system abbreviation

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Is this a cloud model on BIM360 or is it a file that they've sent you?

If they've sent you the file then you CAN edit it - keep the original for traceability purposes, create a copy, edit it and use that as your linked file. I've had to do that regularly with architectural and structural files in order to get view filters etc to work.
I might be wrong but tags can only display the values of the parameters applicable to the object being tagged, so if you really can't edit the parameters then I don't think you can use tags to do what you are trying to achieve.

[stacey.hennigL6B3T]

It is a cloud based model unfortunately. I am thinking of contacting the contractor to change the abbreviation however this may mess with their standards in house. thanks for the response, i was thinking that I am limited to the parameters being as they are.

[iainsavage]

I tried adding a new parameter in the host model and associating it to pipe systems but it wouldn't let me add a value for pipe systems which are contained in the linked model so I think the only option is to get the link edited or use dumb text.