Obtaining further information – Rockwell Automation 6181 Industrial Computer User Manual
Page 138
C–2
Using
a
Touchscreen
Publication 6181-UM001D-EN-P
Note:
The 6181 12.1 inch keypad bezel computer uses a Touchko
WIN32 touch screen application instead of an operating
system driver. This means the touch screen is not active
until after the operating system is completely booted.
This application is factory configured to automatically start
during the operating system boot. It is placed in the
appropriate start-up folder for the Windows operating
system.
If you have to reinstall the operating system, follow the
instructions on page 3-6 to install the Touchko driver so that
the touchscreen is activated when Windows starts.
Obtaining Further Information
Important
: For more information on setting up or operating a
touchscreen or for future driver upgrades, refer to the Elo
TouchSystems web site: www.elotouch.com, or to the
Touchko website: www.touchko.com.
Resistive touchscreens are activated by pressure applied to the
touchscreen by an operator’s finger. You can operate a resistive
touchscreen while wearing gloves.
ATTENTION: Do not use sharp instruments to activate
the touchscreen. Scratching the surface of the
touchscreen could damage the unit.
Resistive touchscreens consist of two layers:
•
A lower layer (glass substrate) with a resistive coating and a voltage
applied
•
An upper layer (cover sheet) with a conductive coating
•
Clear spacer dots separate the two layers
When a user presses the upper layer onto the lower layer, the upper layer
receives the voltage applied to the lower layer. The touchscreen
controller detects the change in voltage on the upper layer and alternates
voltage horizontally and vertically through the layers. The voltage
transferred to the upper layer is proportional to the location of the touch
on the screen.
The touchscreen supplied with the RAC6181 Computer is factory
installed and calibrated. In the event that you need to recalibrate the
touchscreen, use the following procedure:
Resistive Touchscreen
Technology
Calibrating the
Touchscreen