Dick Morley, the "father" of the PLC explained in a recent exclusive interview, "Our design philosophy was simple; put a bunch of relays in a box!" At the time, Morley was working at Bedford ...

When a PLC is used primarily to replace relays, timers, and counters, it's hard to beat the simplicity and usefulness of ladder diagram programming. Their ability to accept programming in ladder ...

他記事で三菱電機 MELSEC iQ-Fを用いて基本動作を紹介し、またGX Worksの使用方法を紹介しました。 本記事ではPLCの理解を深め、よりMELSECを使うための情報を記載します。 1－1．プログラミング言語 Gx Works3ではIEC61131-3で定義されている5種類のPLC ...

Though PLC (programmable logic controller) programming languages may not receive the attention that general computing programming languages, such as JavaScript, C#, or Python do, they remain critical ...

In part one of this series, we looked at the PLC’s internal architecture, briefly discussed Ladder Logic programming, Human-Machine Interfaces, advantages of the PLC’s ability to react consistently ...

Programmable Logic Controllers (PLCs) are the backbone of modern automation, controlling everything from simple machines to complex industrial processes. Among the many PLC manufacturers, Beckhoff ...

Abstract: Users of protective relays apply these devices specific to their needs and applications. In order to perform this task, schemes are developed and applied to protective relays in the form of ...