Index : count
Index : limit
The ProcessData statement allows local data items to be declared and used within a state action to which they are scoped.
Typically, process data items are used to convey data from one process to another or to hold intermediate values in calculations. They always appear in lower case.
Process data can be accessed from any processes but it must have been assigned previously.
Any change made to the value of the item in a child process is reflected in the parent process.
A process data item must be initialised before being read; both actions being compulsory.