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To: JDN who wrote (16825)	5/13/1998 3:12:00 PM
From: John Mansfield	Read Replies (1) \| Respond to of 31646

'But you have to know what to look for.' >'One question: Have devices with important functionality been found >that are Y2k sensitive but which show no outward appearance of >knowing the date?' 'This is an easy and a tough question to answer. To a knowledgable technician or engineer, the date calendar (clock) has always been apparent (still waiting on the exception to prove the rule). But you have to know what to look for. ...' ______________________ 'In article <bksEst0yM.JFJ@netcom.com>, bks@netcom.com (Bradley K. Sherman) wrote: >In article <6j7du4$5ek@sjx-ixn10.ix.netcom.com>, >Fred Swirbul <fswirbul@ix.netcom.com> wrote: >> >>And yes, nothing I am saying should be construed that everything is >>all right, and Y2K is not a problem. It should be construed, however, >>IMO, that there is a good chance that things can turn out with >>disruptions to the electric grid no worse than we have previously >>seen in other events. > >Thanks very much for taking time to add some grist to the mill. >My company would be completely deep-sixed if we lost power for >one week (plant tissue samples in -80C freezers). The question >of electric power is paramount. > >One question: Have devices with important functionality been found >that are Y2k sensitive but which show no outward appearance of >knowing the date? > >By outward appearance I mean that there is no date display or dated >report and no apparent mechanism for setting the date for the device. > > --bks > This is an easy and a tough question to answer. To a knowledgable technician or engineer, the date calendar (clock) has always been apparent (still waiting on the exception to prove the rule). But you have to know what to look for. An elevator has no apparent clock, but the tech knows how to set it. A smart (digital) pressure transmitter looks exactly like an analog transmitter from the outside, even transmits the same 4-20mA signal on its two wires (only two, no other input), but a modulated waveform can be placed on top of the 4-20Ma signal for calibration purposes and to transmit a date (example, a Rosemount 3051 Dp Transmitter and the HART communicator pair) Any digital pathway could possibly communicate a date to an otherwise "dumb" looking device. You need to know what is sent on that pathway. A battery backed RTC won't always have a visible battery. Sometimes they are built into the chip itself, along with the crystal. Fortunately the chip looks thick when they do that. Hope this helps Fred Swirbul ____ Subject: Re: Electric Utilities vs Fear Mongers Date: Wed, 13 May 1998 05:43:12 GMT From: Fred Swirbul <fswirbul@ix.netcom.com> Organization: Netcom Newsgroups: comp.software.year-2000 References: 1 , 2