Avoiding pitfalls in applying programmable logic controllers in substation applications

Much attention has been given to the use of programmable logic controllers (PLCs) in substation applications in recent years. Innovative engineers have been actively seeking new applications for PLCs in substations. Manufacturers of PLCs have responded by developing new products that meet the unique requirements of substation applications. As the use of PLCs in substations has grown, the benefits of their use have become more known to substation engineers. Not as well known or publicized are some of the pitfalls that engineers may fall into when applying PLCs in substations. Problems that are recognized beforehand are avoidable, and it is the goal of this presentation to help those applying PLCs to avoid as many pitfalls as possible.