TAVA IN FORTUNE MAGAZINE - April 27, 1998 Excerpts
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Tava Technologies of Englewood, Colo., has one of the few software tools for automatically finding year 2000 errors in manufacturing's embedded systems. Among other things, Tava's program can read the "ladder logic" directing programmable logic controllers (PLCs). These simple, computerlike devices issue commands to factory equipment in the manner of a drill sergeant. Thousands of PLCs dot factory floors, and all have to be checked.
Many embedded programs, however, can't be fixed at all because they are inscribed on silicon chips. In those cases, whole pieces of factory equipment, from time clocks to expensive computer numerically controlled (CNC) machine tools, have to be junked and replaced.
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Tava will train a client's technicians to look for noncompliant items or send in its own team. Vice president Martin Fallon describes how a typical quest proceeds: "The team is on the plant floor. The team member with a headset says, 'I see an Allen-Bradley PLC.' His colleague, walking alongside with a laptop, scans down through the Tava list, finds Allen-Bradley and a list of PLCs, pulls it up, scrolls down to the particular model number and checks on it, and it's added to the inventory of machines in this plant."
Back in the office, the technicians click on the Plant Y2kOne icon and submit the inventoried items to Tava via the Internet. The client can now see what's on a suspect list, vendors' statements, and Tava's own advice on the item. Tava's response on one device indicates that it can be kept: "Each intake node requires upgrade; system upgrade will take you approximately two hours per node." A different fate awaits a factory production monitor that Fallon brings up on his screen. The screen tells him it's a noncompliant product using the 00 date. Tava's advice: Contact the vendor and get a new model.
Software evaluation can be called up in the same way. In a demonstration, Fallon runs nearly 2,000 lines of code from a suspect program through a Tava "filter" and locates 22 examples of year dates. He looks at each line, and after finding the keywords related to date, lets the program determine if there's a year 2000 glitch and then changes the year digits from two to four. Tava also produces a printout for a client that shows noncompliant equipment in red, suspect in yellow, and "clean" equipment in green.
What the Plant Y2kOne program cannot do is calculate the relative risk inherent in all the interconnections among software in the machines. That still has to be done visually by skilled programmers. It typically takes three of them two weeks to sift through a million lines of code, which contain as many as 50,000 year dates.
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The manufacturing sector has the most to worry about, for its year 2000 problems are more complex, widespread, and difficult to remedy than those in straight- forward computer applications such as accounting and finance. Worse, manufacturing corporations were slow to wake up to the enormity of the task they are belatedly tackling.
Unfounded gloom and doom? Not if you listen to Ralph J. Szygenda, chief information officer at General Motors, whose staff is now feverishly correcting what he calls "catastrophic problems" in every GM plant. In March the automaker disclosed that it expects to spend $400 million to $550 million to fix year 2000 problems in factories as well as engineering labs and offices.
Or consider the words of Rob Baxter, Honeywell's vice president in charge of making his company's line of industrial control products "year 2000 compliant," to use computer industry jargon. From what he has seen among Honeywell customers, Baxter fears that "some plants will have trouble operating and will have to shut down. Some will run at a reduced scope. I expect considerable system outages during December 1999 through February 2000."
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FORTUNE MAGAZINE - April 27, 1998
By Gene Bylinsky & Reporter Associate: Alicia Hills Moore
Industry Wakes Up to the Year 2000 Menace
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