Operating instructions

Maintenance and care
11.2 Clean screen on MP 377 Touch
MP 377, MP 377 PRO (WinCC flexible)
274 Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
11.2 Clean screen on MP 377 Touch
Introduction
The HMI touch screen can be cleaned when it is switched on and a project is running. An
operating element must be available in the project that can be used to call the "clean"
screen. Once the clean screen is activated, touch screen operation is locked for a configured
period of time. The time the touch screen is locked can be set between 5 and 30 seconds.
The time remaining for the lockout is indicated by a progress bar.
NOTICE
Unintentional responses
When cleaning the touch screen, an unintentional response in the controller can be
triggered by touching keys.
Always open the clean screen or switch off the HMI device before you clean the touch
screen while the system is running!
Once the period for the clean screen has passed, operations are again possible. Avoid data
inadvertent operations.
Cannot be operated when the clean screen is active
When the clean screen is active, operations on the HMI device are not possible.
Wait for the period for the clean screen to lapse. Then you can operate the plant again with
the HMI device.
11.3 Spare parts and repairs
Repairs
In case of repair, the HMI device must be shipped to the Return Center in Fürth. Repairs
may only be carried out at the Return Center in Fürth.
Depending on the work necessary to repair the device, the Center may decide to give you a
credit note. A credit note is only granted when the sender orders a new HMI device.
The address is:
Siemens AG
Industry Sector
Returns Center
Siemensstr. 2
90766 Fürth
Germany
Spare parts
You can find spare parts and accessories for the HMI devices in
the section
Accessories (Page 26).