Crestron electronic TPS-17B/W - Manual (Page 47)

Crestron Isys ® TPS-12B/W, TPS-15B/W & TPS-17B/W Tilt Touchpanels
Programming with VisionTools Pro-e
Touchpanel screens should be created in VisionTools Pro-e to allow switching of
source signals to desired outputs as well as selection of the system mode. There are
no special programming requirements to use the functions of the TPS-12B/W,
TPS-15B/W & TPS-17B/W in a room-control system.
Multi-Mode Objects
Multi-mode objects offer high-
performance programming!
The single most-advanced VT Pro-e high-performance programming technique
involving the TPS-12B/W, TPS-15B/W & TPS-17B/W is the concept of multi-mode
objects. A multi-mode object (i.e. button, legend, etc.) is an object drawn on a VT
Pro-e page that can have one or more active and inactive visible settings (modes).
For examples, refer to http://www.crestron.com/exampleprograms and search for
multi-mode object examples. This file contains the VT Pro-e touchpanel files and
SIMPL Windows files that illustrate the high-performance capabilities of multi-mode
objects.
WAV File Audio Messages
The TPS-12B/W, TPS-15B/W & TPS-17B/W touchpanels are capable of playing
audio messages as system prompts and responses. These files are recorded as WAV
files on a PC using an audio utility such as Sound Recorder that is packaged with
Microsoft Windows 95/98/Me/XP/NT/ 2000™. Files from other sources may also be
converted to an acceptable format by using this or a similar utility. Many other audio
utilities are available commercially or as shareware. The TPS-12B/W, TPS-15B/W
& TPS-17B/W touchpanels only accept the following WAV file format: PCM,
8KHz, mono, 8-bit. For more information about how to use Sound Recorder, refer
to its User’s Guide and extensive help information provided with the software. Also
refer to the help file in VT Pro-e to learn how to use its audio tool, Sound Manager,
to attach WAV files to a touchpanel project.
Pre-recorded WAV files for voice prompts and responses are available from
Crestron. These files can be stored into and programmed for use in the touchpanel
directly or may be edited with the Sound Recorder. For example, the individual files
can be combined to create custom messages.
NOTE: Touchpanel WAV files can be obtained from the Wave LC Library of the
Crestron FTP site.
Bit Depth and File Size
A bit depth refers to the number of memory bits used to store color data for each
pixel in a raster image. A touchpanel raster image consists of a rectangular grid of
picture elements (pixels). Each pixel uses the same amount of memory to store its
color data. The amount of memory is called the bit depth of the image.
Greater bit depths are required to represent finer gradations of color. Increasing bit
depth necessarily increases file size. A black and white drawing requires only one bit
per pixel to store all the available color information. Using a 32-bit per pixel bit
depth for a black and white image increases the file size 32 times without adding
anything to the black and white image quality.
In an 8-bit per pixel system, the associated 8-bits of video memory for every screen
pixel contain a value referring to a location in an 8-bit color table. In this way any
one of the specific 256 color table locations is assigned to a pixel.
A 16-bit highcolor system is considered sufficient to provide life-like colors. It is
encoded using 5-bits to represent red, 5-bits to represent blue and (since the human
Operations Guide – DOC. 6464A Tilt Touchpanels: TPS-12B/W, TPS-15B/W & TPS-17B/W • 43