to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
to exchange values [...] variables and parameters [...] Variables defined
Action: ReadVariable [...] reads a variable [...] When reading a variable
, and retain variables [...] retain variables [...] , and only persistent variables