Operating instructions

Configuring the operating system
6.5 Changing settings for operation
MP 377, MP 377 PRO (WinCC flexible)
110 Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
6.5.4 Calibrating the touch screen
Introduction
Depending on the mounting position and viewing angle, it is possible that parallax may occur
when operating the touch screen. In order to prevent any operating errors as a result,
calibrate the touch screen again in the startup phase or during runtime.
Requirements
You have opened the "OP Properties" dialog "Touch" tab with the "OP" icon.
Procedure
Proceed as follows:
1. Click on the "Recalibrate" button.
The following dialog opens:
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2. Briefly touch the middle of the calibration crosshairs ①.
The calibration crosshairs is then displayed at four more positions.