Parens need to be used for many cases of outputs

[connoralbright]

Invalid:
DO[19:Vaccum_Status]=RO[1:Vaccum] ;
Valid:
DO[19:Vaccum_Status]=(RO[1:Vaccum]) ;

This seems to be true for most types of outputs when not using On, Off, Pulse, or R[n].

In io_node.rb, this line seems relevant:
options[:force_parens] ? "(#{s})" : s

As a workaround, in TP+, manually placing the parens in the .tpp code works:
Vaccum_Status = (Vaccum)

[unreal]

hmm, one might argue this is another one of those cases that should be fixed in TP ;)

TP+'s type-checking and handling of parens/mixed-logic is pretty bad and needs major work.