Operation
6.3 Operator controls of the touch screen panels
SIMATIC PC Panel PC 677/877, Control Unit
6-8
Operating Instructions, Edition 04/2005, A5E00407724-01
6.3.2
Touch screen
The display is sensitive to touch and application-specific surface elements, e.g. a button,
appear on the screen. By tapping the button with your finger, the function assigned to the
button is activated.
Caution
Only touch one point on the touch screen and not several points at one time. You may
otherwise trigger unintended reactions.
Do not touch the screen in the following situations:
— When the device is booting until the boot process is completed.
— When plugging or unplugging USB components.
The following types of pressure are permissible:
•
Using a plastic pen with a 1 mm radius at the point: 25 grams
•
Using a silicone finger with a diameter of 1.6 cm: 50 grams
