I am working in IICS and I want to get more information on how a sub-process with an iteration rule works. I can't find documents online, so hopefully someone has had a similar experience. If I were to have a sub-process that is set to iterate on a list of values from a field (Ex: A,B,C) does it perform all of the runs in the same instance or does it reset on each value?

For instance, if I had a temporary variable set to start at 0, in the sub-process that increments each time it runs when I get to C is it equal to 3 or 1? I believe 3 would be because it retains values from one run to the next, but it could be 1 if it resets all values each run.

I appreciate any information, and links to documentation if you have them.