The Year 2000 Problem: Act Now To Prevent Losses

We’ve all heard the warnings about the Year 2000 problem. But there is nothing inevitable about date-related computer failures that could damage your equipment. There are several steps you can take to prevent losses: inventory and prioritize equipment, gather information from manufacturers, test and test again. Above all, take corrective action now — before it’s too late.

What’s The Problem?

The Year 2000 problem is associated with the inability of computers to properly compute year dates. Experts believe that some computer programs will not recognize the date 1/1/2000. Many types of equipment could be at risk. But it’s important to remember, a computer system that was not designed to compute year dates in the first place does not have a Year 2000 problem. The difficulty is determining whether your systems are at risk.

About Control Systems

Computer systems that control machines and processes present a somewhat different problem than other computers. These systems are designed to electronically manipulate electric control switches and signals that cause machinery and processes to operate automatically.

Automation control systems are generally of two types. The programmable logic controller (PLC), perhaps most common, is a general purpose automation product in use since the 1970s. The computer numerical control (CNC) is a more specialized control for machine tool automation. The only way to determine whether PLCs or CNCs could have date-related programming problems is to contact the manufacturer.

What Can You Do?

There is one hard and fast rule that applies to Year 2000 preparation — a positive result requires organized and effective action. If your systems have year/date handling problems that might affect your business, locate them now and correct the problem.

Make a list of automated equipment and processes important to your business or operations. Decide which are most important and ask manufacturers about Year 2000 readiness. Test key systems as far in advance as possible. And don’t forget applications software. Applications programs are unique and it is advisable to test all PLC controls by setting the clock ahead to 23:59 of 12/31/99 and observing the roll-over.

[HSB customers and subscribers can access the full-text article for detailed information about planning and testing, a sample progress chart worksheet, and Web sites linked to major manufacturers of control systems with information about Y2K.]

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