Siemens Panel PC 870 appendix Special features, If this happens

Release 11/02 Operating the Panel PC 670/870

10.Select the Calibrate button.

A window for touch calibration appears.

11.Touch the touchscreen at the cross-hairs.

During calibration, two cross-hairs are displayed which must be pressed for a minimum of 3 sec. to a maximum of 10 sec. Finally, the Calibration Complete window appears.

12.Press the Done button to terminate the calibration process.

Special features

The touch controller, integrated in the front, is designed to automatically compensate for changes in the surface tensions of the touch sensor (e.g. due to large temperature fluctuations). As a consequence, however, this feature may initiate an automatic calibration when exactly the same point is continually pressed for a while (>15 seconds).

If this happens,

Do not touch the screen touched for a short time. It is then recalibrated to the original state.

An incidentally located background function is activated by the software ProTool/Pro if touched when setting the touch parameters in the window Microtouch → Touchsettings: Desktop or when the screen saver is activated.

Warning

Do not touch the screen:

•during the PC boot routine (until the acoustic BEEP signal),

•when plugging USB components in or out, and

•if the warning message Do not touch the screen... appears. Wait at least 1 second after the message has disappeared.

SIMATIC Panel PC 670/870 Start-Up Instructions 3–9