Requirements for PROFINET in Process Automation Defined
The working group ?DCS Requirements? of PI (PROFIBUS & PROFINET International) has defined the requirement profile for PROFINET in process automation. It reflects the manifold needs of users of a plantwide communication system. As part of the procedure, a catalogue with about 100 requirements was drawn up. It has already been subject to a review by the relevant marketing working groups (WG) of PI and has been adopted by them. NAMUR (International User Association of Automation Technology in Process Industries) was also incorporated into the review. The specification tasks for the various issues have now been started in the PI technical working groups. The specification drafts are expected to be ready in spring 2008 and will be available for the development of future products and systems for PROFINET in the process automation after the usual review.
PROFINET is already being successfully implemented as a communication standard in factory automation. In order that the strengths of PROFINET can also be utilised in process automation, one first has to check if and which extensions of today?s standards are required. The basis for this has been compiled by the PI working group ?DCS Requirements?. Central issues are device inte-gration, maintenance and diagnosis, fieldbus integration, data flow, time stamping, time synchro-nisation and redundancy.
The working group ?DCS requirements? comprises 10 participants from ABB, Emerson, En-dress+Hauser, Pepperl+Fuchs, Siemens, Softing, Stahl and Yokogawa. They actively bring in their expertise as manufacturers of process control systems, field devices, and fieldbus technol-ogy. The close and direct contact with the NAMUR working group 2.6 ?Fieldbus? ensures, from the very beginning, the exchange and provision for user needs as regards the requirement profile of the DCS Requirements.
The complete system functionality is expected to be available by the beginning of 2009.