by Eugene Kowch | Dec 1, 2003 | Uncategorized
With any PLC (Programmable Logic Controller) system, you generally have many different types of data to process. For example keypad button inputs, lighting circuit outputs, interval timers, etc. It is important to understand how the system represents and stores...
by Eugene Kowch | Oct 1, 2003 | Uncategorized
If you are a new programmable logic controller (PLC) user, you will find that each PLC manufacturer has their own conventions on the use of numbers. PLCs store and manipulate numbers in binary form: ones and zeros. Numbers typically represent a size or amount of...
by Eugene Kowch | Feb 1, 2003 | Uncategorized
Home audio systems are becoming more and more important to new homeowners. They have AM/FM receivers, CD players, satellite/cable, and even the Internet as sound sources located usually in the media room. Stereo sound is piped into almost every room in the house via...
by Eugene Kowch | Dec 1, 2002 | Uncategorized
System integration is becoming an important issue in the home automation scene. New homes have a number of systems: security, heating, lighting, drapery, audio, video, etc. Each system has its own controller and takes care of its own I/O (Inputs and Outputs). At...
by Eugene Kowch | Oct 1, 1997 | Uncategorized
In the February 1997 issue of HTINews was an introductory article on programmable logic controllers (PLC). In that article the system hardware was explained, Input and Output Units (I/O) and the Central Processing Unit (CPU). This article will discuss the application...
