Dick Caro, chairman of the IEC for Fieldbus, said that there will be official protests from the USA, France, UK and possibly Japan and Italy, following failure of the IEC fieldbus Data Link vote by a small margin at the TC65C WG6 meeting in Paris, late last year.
Sources say that the DL spec failed by one vote which should have been excluded under IEC rules. The French Secretariat recommended DL acceptance.
However, chairman of 65C, Klaus-Peter Lindner of E+H, decided to include the Austrian vote, which the secretariat had classified as non-technical. This raised the negative vote to 29%.
Caro challenged the German delegation to submit technical details of their objections. `But the outcome was that Germany wanted the IEC to accept Profibus as the IEC standard, which is not acceptable. The DL group believes that the IEC DL provides an equivalent Profibus token passing service.’
* WorldFIP is developing a chip, FICOMP, that will run both FF and WorldFIP DLs. This will become a `switchable’ interface.