PLC analog output card

PLC Analog I/O and Network I/O

In the early days of programmable logic controllers, processor speed and memory were too limited to support anything but discrete

PLC Motor Control Circuit-3

Basics of PLC Programming

In the late 1960’s an American company named Bedford Associates released a computing device they called the MODICON. As an

PLC Stop - Start Circuit

Introduction to PLC Ladder Diagrams

A ladder diagram is read from left to right and from top to bottom. When the PLC is in run mode, it goes through the entire ladder program to the end.