The Great Kanduski: Best Practices in Industrial Networking
Ian Verhappen, a.k.a "The Great Kanduski," has 25+ years experience in instrumentation, controls and automation. He joins the editors of Control, Control Design and Industrial Networking to offer his perspectives and experiences on networks (including IP based ones), fieldbuses, wireless, and anything that has to do with field level devices (including process analysers).
Much like our Industrial Networking magazine, the Great Kanduski serves the readers of Control and Control Design who are especially interested in fieldbuses, Ethernet, wireless, networking strategies and standards, and the cables, connectors, sniffers and other components that support them.
Brad Carlberg, who chaired this year’s Wireless track at Automation Week in Mobile also recorded all the sessions as well so you are now able to get the benefit of both presenter and presentation at the following link http://www.isa.org/~pupid/ISA_AW2011_Sessions.htm
The Profibus started the idea of traveling road shows approximately 10 years ago as a way to show Edn Users how their technology worked. The Road Shows consist of a series of free 1-day seminars in different cities around the continent spread out through the year.
Publicly Available Specification 55 is presently with the IEC in the ISO 5500n series of standards. The resulting standards will be similar to the ISO 9000 or 14000 series that have been widely adopted. PAS 55 addresses Asset Management.
Jitter or the difference in time or variation between when something is ‘supposed to happen’ versus when it ‘actually happens’ as compared to a reference clock source. The deviation can be in terms of amplitude, phase timing, or the width of the signal pulse.
One would think that because the Fieldbus Foundation defines so many other parameters in its standards that the time for the Compel Data message used for the Publish/Subscribe messages on which control in the field is based would also be standardized. Not so.
All of us are familiar with the story about how the war was lost because the nail on the horse’s shoe was lost, well the same sort of thing is happening with instrument manufacturers because of the tsunami earlier this year in Japan.