Eugene Kowch

Programmable Logic Controller – Features

One of the obvious new features is how compact in size PLCs are becoming. PLCs are now about the size of a hockey puck, 4″ H, 4″ W and 2.5″ D. These compact PLCs come with a built in LCD display and keypad or a colour touch screen (160×128...

PLC’s – Analog Values

Many homes and offices require more than simple on/off control. They must deal with temperature, gas/water meters, and sump levels, which vary in a continuous manner from some minimum to some maximum reading. Various sensors are used to measure the quantity and...

When Do You Need A PLC?

When do you need a programmable logic controller? – when there are more than four rooms with more that three zones of lighting. – when the number of switches per room are more than two. – when energy consumption is a concern. – when turning...

PLC – Lighting Design

Architects or interior designers will provide a reverse ceiling plan showing where the lights should be located on a project. Symbols for lights are typically circles. Sometimes wall/floor receptacles are included, if lamps will be used in the room. Group the lights...