Network grounding focus of Fieldbus Foundation-Namur liaison
Austin, TX and Hannover, Germany —Advice on grounding and shielding a fieldbus network and on device diagnostics profiles is the focus of a new relationship between Fieldbus Foundation and Namur , the German-based, international process industries’ end-user group. The association announced the effort during a press briefing at Interkama in Hannover, Germany, last month. Both groups identified the topics as areas requiring clarification and guidance, particularly for Europe, Middle Eastern, and African end-users in the process industries.
Among the activities of the group is a collaborative project, led by Stephen Mitschke, manager of fieldbus products at the Fieldbus Foundation. The project will compile a guide to help end-users make informed decisions about “best practices” for grounding and shielding a field network. The complex issue involves different solutions supported by various guides, standards, and industries, with the optimum choice dependent on several factors. The guide seeks to comply with Namur Working Group 2.6 “Fieldbus” NA114 guideline, which is currently under development, and with international practices and options for grounding and shielding fieldbus systems.
Mitschke also will lead a second group investigating self-check and diagnostics for field devices. The intent of the initiative is to ensure that F OUNDATION fieldbus devices are consistent with Namur Working Group 2.6 “Fieldbus” NE107 guideline requiring that fieldbus devices deliver diagnostics that ensure optimum plant efficiency.
— Control Engineering Daily News Desk
Jeanine Katzel , senior editor
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