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Industrial PC M Panel PC
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DVS 51052 V2.0
© 2010 by Grossenbacher Systeme AG
8.2 P
OWER UP FUNCTION TEST
Infrared touch version
The touch-screen runs a function test each time it is powered up, in which all
the IR channels are tested. Faulty IR channels can be evaluated by the
application and displayed graphically. A failure of the IR channels is normally
due to severe contamination of the IR transparent plastic frame, which
consequently has to be cleaned (
Î
sect. 10). The optical elements of the
light matrix are located behind the IR transparent plastic frame in the front
panel of the device.
IR channels that are continuously interrupted will be detected by the touch
controller after a timeout of approx. 15s and no longer included in the
evaluation. In extreme cases, this may mean that individual zones cannot be
touch activated.
Do not touch the screen of the touch panel during the
system power up until your application is running.
The touch-screen performs a function test during the
power up.
Resistive touch version
The function of the resistive touch-screen cannot be monitored due to the
technology involved.
DVS 51052-V3.0
