Specifications

Intelligent Building Series C-Touch Programming Reference

4.0 Definitions

The following definitions are useful in discussing the C-Touch unit:

Term Definition

Load A load is an electrical device connected to mains voltage via a C-Bus

output unit. Most loads are lights, but may be any device such as

sprinklers, AC Power points, heaters, projection screen motors etc.

Scene A scene is defined as the combination of loads distributed in various

control zones with different levels. The scene can be set up with the

configuration software and assigned to soft keys on the C-Touch unit.

Fade Rate The fade rate indicates the length of time it takes for a load to ramp to a

desired level.

Zone Refers to an illuminated area. In C-Touch a zone is a C-Bus Group

Address representing one or many loads connected to a C-Bus output

unit. All the lights in your dining room might be in one zone.

Schedule A schedule is a sequence of events that are to occur at particular times

or dates in the future.

Soft Key An area on the surface of C-Touch which can be pressed to cause

something to happen.

Page A page is an assortment of soft keys and graphics that represents

something understandable to the user.

Component A graphical object displayed on a C-Touch page. Components include

soft keys, images, text, clocks, temperature sensors and other items.

Backlight The back of the unit is illuminated to make it visible when it is dark. This

illumination is called backlight.

Input Unit An input unit is a C-Bus unit which the user interacts with to make things

happen on a C-Bus Network (C-Touch itself, a key input unit or passive

infrared sensor are examples).

Page Link A method of causing the display to jump to another page.

Output Unit An output unit delivers power to loads (a relay and dimmer are

examples).

Some further definitions which are useful when discussing C-Touch programming are

given in the following sections.

4.1 Hexadecimal numbers

A Hexadecimal number is a number represented in “base 16”. Everyday

numbers are represented in decimal, which is “base 10”. In the decimal system

numbers are expressed with 10 symbols; the familiar digits 0-9. The

hexadecimal system uses 16 symbols, the ten digits plus five letters to stand for

“digits”.

In the decimal system, once the number 9 (the last digit) is reached, a symbol

has to be placed in the next column (the “tens” column) to create a number with

two digits.