Siemens MTP700 Unified Comfort Hygienic Compact Operating Instructions page 21

Danger of malfunctions due to incorrect execution of gestures on the touch screen
If gestures are executed incorrectly on the touch screen with multi-touch function, these
gestures may not be recognized or could be recognized incorrectly. The entries made are
then not implemented by the touch device or are implemented incorrectly or in an
unintended manner.
Incorrect execution of multi-touch functions can lead to errors in the operation of the plant
and thus to physical injury.
Observe when operating the capacitive multi-touch screen:
• The touch screen reacts to contact on its surface, not to pressure.
• When using a touch pen: Operate the touch screen only with a touch pen for capacitive
• Avoid unintended multiple touches, for example, with your knuckles.
Before using the HMI device, familiarize yourself with the supported multi-touch functions
of the operating system and the applications. Ensure that the gestures which the user
executes on the multi-touch screen are recognized by the application. It is possible that
certain gestures need to be trained beforehand.
Notes on operation
Note
Do not touch the capacitive multi-touch screen during startup
The HMI device automatically calibrates the capacitive multi-touch screen during startup. The
touch screen is locked during calibration.
Do not touch the touch screen during startup. Make sure that you do not rest on the touch
screen with the palm of your hand during startup.
Make sure that there are no conductive liquids on the touch screen during startup.
Note when operating the capacitive multi-touch screen:
• Surface contact with a diameter of about 5 to 20 mm is required for an operator action to
be detected.
• An operation with gloves with a material thickness of < 2 mm is detected in most cases.
However, check the usefulness of the gloves you are using.
• To avoid incorrect operation, certain inputs are ignored and blocked from further entry:
– Simultaneous operation with more than 5 fingers.
– Surface contact with a diameter of > 3 cm, for example, resting the palm of the hand
– As soon as the touch screen is no longer touched, input is possible again.
Unified Comfort Panels Hygienic
Compact Operating Instructions, 04/2023, A5E52219907-AA
WARNING
touch.
on the touch screen
Safety instructions
2.7 Important notes on touch screen
21