I attended the WirelessHART seminar presented in Edmonton this week by Chuck Micallef, Jim Cobb, and Eric Olson to learn a bit more about how it all works and was certainly glad I made the effort.
Most people, in part because the marketing folks tell us so, believe that the addition of wireless to the HART standard is the most important part of the latest version. I beg to disagree.
The most common implementation of Industrial Wireless, especially WirelessHART is to install a “thumb” on the ‘spare’ outlet of a conventional HART transmitter so that the HART information can be accessed wirelessly practically anywhere. In my mind this is a step back because most control systems support HART communications directly...
Here's a capsule update on the wireless standards war.
Here is a press release from Liz Patronella at the HART Communication Foundation detailing the outcome of the NAMUR testing at BASF Ludwigshafen:
Far from being an "emerging standard" (which is the way I'd describe ISA100.11a) the WirelessHART and HART 7 "ecosystem" (as we are now told we have to call the vendor supply chain systems) appears to be growing and flourishing at an astonishing rate.
65C/506A/PAS Project: IEC/PAS 62591 Ed.1 IEC/PAS 62591: Industrial communication networks - Fieldbus spec
Went from Park City, UT (did I mention that there's nothing to do in the summer in Park City) to Austin to meet with the HART Communication Foundation. Control is preparing the annual HART supplement for our September edition.