This International Standard specifies a method of description of the interface between a process computing system and a technical process
This International Standard comprises five forms :
Form 1 : General Form 2 : Digital inputs Form 3 : Digital outputs Form 4 : Analogue inputs Form 5 : Analogue outputs.
Each form contains a list of parameters. This International Standard describes the parameters, explains the use of the forms, and gives preferred layouts of the forms.