Use calculation as tags

It would be nice to be able to propagate calculations within PI by calling for other calculated variables within a new calculation. For example, where X, Y, and Z are PI Tags, I have a calculation A = X+Y. I would like to add a new calculation B = A/Z without having to redo calculation A (i.e. B = [X+Y]/Z ). This would be VERY helpful for longer equations with multiple calculated variables! Thank you very much!

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Lucas Barker

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| Sep 28, 2023

This would be very helpful... for example to easily create a voltage/current imbalance calculation from power system data. This is what I have to input in the tiny box:
max(abs('ADOBE _1 25 A PHASE BUS KV-A'-avg('ADOBE _1 25 A PHASE BUS KV-A','ADOBE _1 25 B PHASE BUS KV-B','ADOBE _1 25 C PHASE BUS KV-C')),abs('ADOBE _1 25 B PHASE BUS KV-B'-avg('ADOBE _1 25 A PHASE BUS KV-A','ADOBE _1 25 B PHASE BUS KV-B','ADOBE _1 25 C PHASE BUS KV-C')),abs('ADOBE _1 25 C PHASE BUS KV-C'-avg('ADOBE _1 25 A PHASE BUS KV-A','ADOBE _1 25 B PHASE BUS KV-B','ADOBE _1 25 C PHASE BUS KV-C')))
Preferred, something like this would greatly enhance readability and potential for errors:
AVG = avg('ADOBE _1 25 A PHASE BUS KV-A', 'ADOBE _1 25 B PHASE BUS KV-B', 'ADOBE _1 25 C PHASE BUS KV-C')
DEV_A = 'ADOBE _1 25 A PHASE BUS KV-A' - AVG
DEV_B = 'ADOBE _1 25 B PHASE BUS KV-B' - AVG
DEV_C = 'ADOBE _1 25 C PHASE BUS KV-C' - AVG
IMBAL = max(DEV_A, DEV_B, DEV_C)
Thanks for your consideration.

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Use calculation as tags