Longo Touch Screen LTS-1.PC2
4 OPERATION
Touch Screen is preset for automatic start of Progea Movicon CE (2h demo, if license is not
activated) and Movicon run-time is preset for automatic start of Smarteh sample application.
Basic setting like screen saver and touch calibration can be entered through Win CE 5.0 control
panel. Application settings are part of developing environment. Using pre installed Movicon,
application changes are to be made on developer workstation PC and then copied to Touch Screen
SD card.
VNC server is also included in SD card and can be simply started using Run command from Win CE
Start menu. It is advised to take care of IP settings before starting VNC server.
4 .1 Storage content
IMPORANT: To ensure long-term operation of the Touch Screen, storage capacities must be used
correctly, mainly due to wear of flash memory. F
lash memory has a finite number of programerase
cycles. Flash products are guaranteed to withstand 100.000 P/E cycles, before the wear begins to
deteriorate the integrity of the storage. After on-board flash wears out, Touch Screen is no longer
operational. So it is advised to do all write intensive operations to removable SD card and NOT to on
board NAND flash.
On board flash is to be used as operating system and registry storage. SD card is used for SW
installations, application data, data logging and logs.
PC2 Touch Screen as shipped, has two storage devices accessible using windows explorer:
•
ResidentFlash -
256 MB on-board NAND flash
•
Storage Card -
with 2 GB SD card properly inserted
Content of
Storage Card
is basically as follows:
•
APPL
- folder holding Movicon application data
•
MovXCE
- folder holding Movicon CE Runtime program
•
VNC -
folder holding Windows VNC program for remote access to Touch Screen
•
MovCE.boot
- file in XML format specifying the path and name of the project to be run
Content of the SD card (
Storage Card
) can be backed up using card reader by simply copying the
contents of the card to a backup space and back. Movicon License is not affected by changing the
content of the SD card.
4.2 Note on building SCADA application
Project compatibility between desktop PC and target Touch Screen is one of the biggest advantages
of using Movicon. Structure of the projects is XML based, which means all the same project files run
on Win32/64 (and debuged using PC!) can be uploaded to the Touch Screen and run by the Movicon
CE run-time engine. As a consequence, there is no need to compile the project file when uploading
it from Desktop PC to CE device and project reverse engineering is no longer necessary. Considering
resource limitations of CE platform, this approach makes project handling extremely simple.
More information about Movicon application development you can find in
Movicon CE Reference
Guide
and other literature available from
http://www.progea.com
.
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