I have a few questions for you. In our environment, we have PI tags setup with similar calculations that we are doing using AF. I assume that was an older method of doing the same thing? For example, we have a PI tag that calculates the running time of an engine over the last 24 hours using the following expression in the tag. I assume the AF method is now the preferred method for doing this? What is the advantage/disadvantage?
Tagval ('KAK_PL_K-150_COMP-ACC-RT.PV', '*') - Tagval ('KAK_PL_K-150_COMP-ACC-RT.PV', '*-24h')
I am working on a rollup example in my test environment (not using a template for now, just picked one element with 3 children to rollup). I just installed analysis services in test and it seems to be working. I created the analysis and it calculates a value when I evaluate it, I also successfully mapped and created a tag for the data, but it still says Pt Created rather than showing a value. I also did a backfill on it and it does calculate previous data. Not sure what I am doing wrong or is it some restriction on the test environment?
(this question was originally asked by Darlene Fletcher in the Introduce yourself thread)