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Technology Stocks : TAVA Technologies (TAVA-NASDAQ)

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To: John Mansfield who wrote (8889)	1/14/1998 3:31:00 PM
From: John Mansfield	Read Replies (4) of 31646

Y2K-EMBEDDED interesting discussion on C.S.Y2K John ------ In article: <34b3289c.173168542@news.calgary.telusplanet.net> ttoews@telusplanet.net (Tony Toews) writes: > > But while the [large oil] company was testing some of the equipment > that controls oil valves in its refineries, engineers inadvertently > discovered a host of new problems. "Thousands of terminals that > control the [dispensation] of oil have old chips with a year 2000 > problem. The chips all need replacing, but the new chips won't fit on > the old motherboards," Wengenroth notes. "And the new motherboards > don't fit the old valves, so all the valves have to be replaced, too." > If the company doesn't address all these problems, it soon won't be > able to deliver oil to its customers. > > YIKES! This is indeed a classic problem in manufacturing plants, and is one of the main reasons why companies are (or are considering) adjusting the dates held by the embedded systems, and then compensating for this in the "next level up" supervisory (i.e. control/monitor) systems. Typically this would have to be implemented during the annual plant maintenance "shutdown" (most manufacturing companies allocate one or two weeks a year for general upgrades, etc. of plant sub-systems). One potential risk area to keep an eye on is that local engineers often like to keep a few unofficial "spares" around just in case something fails - typically they find it easier to do a quick part swap and get things moving again, and then sort out the administrative stuff afterwards. Obviously there may be problems if an unmodified part is swapped into a modified system. -- Roger Barnett Natron Software Maintenance Ltd, York, England

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