COUNT

Hello. Are all of your support names combined in one string, then you split this string to get the individual support names?
Can you illustrate or provide an example of your expected output?

Thanks for your reply Emmanuel.

Yes they are.

Actually we use SUBSTRING and not PART.

Here's an example of one of our Support Names /PS-84-PSS44-01502-SR

With SUBSTRING(NAME,8,5) we chop down it down to the Support Standard Name in this case "PSS45".

We want to count the number of the supports with the same standard on a PIPE.

Any ideas? Do you think REAL() could do the trick?

Hmmm, I have not encountered this requirement before, but I think it is not possible to achieve with REAL() since REAL() only converts a string text to a real number.
I think that you will need to use array variables and PML2 to store the support names and loop to each array element to get a count of support with the same standard. The macro flow will look similar to below:

1. Use Substring function on each support name and store it to an array: !supportStandardName
2. Copy the !supportStandardName array to another array !uniqueSupportStandard
3. Use the Unique array method:       !uniqueSupportStandard.Unique() 
4. Loop through each element of !uniqueSupportStandard array as variable !n and use !supportStandardName.Find(!n).size() stacked method to get the count of support per standard. 

Link for PML2 Array object methods on  AVEVA Documentation website
docs.aveva.com/.../962737.html

Thanks for your replies Emmanuel.