BECKHOFF CP69xx - Manual (Page 16)

Operating Instructions
Operating Instructions
Please also refer to chapter Foreword .
Functional description
Switch on The Control Panel does not have its own mains power switch. As soon as
the power supply is switched on the control panel is activated.
Shutting down and
switching off When the plant is switched off, or when it is disconnected from its power
supply, the Control Panel will be switched off.
Control software such as is typically used on Industrial PCs permits various
users to be given different rights. A user who may not close software may
also not switch the Industrial PC off, since data can be lost from the
storage medium by switching off while software is running.
First shut down, then switch off the PC
Attention
If the Industrial PC is switched off as the software is writing a file to the
storage medium, the file will be destroyed. Control software typically
writes something to the storage medium every few seconds, so that the
probability of causing damage by switching off while the software is
running is very high.
Operation
The Control Panel’s membrane keypad may only be actuated by
fingertips
Note
Attempts to actuate it with other objects can easily result in the destruction
of the device. Neither may the membrane keypad be operated with a touch
screen pen.
The touch screen may only be actuated by fingertips or with the
touch screen pen
Note
The touch screen may only be actuated by finger tips or with the touch
screen pen. The operator may wear gloves but there must be no hard
particles such as metal shavings, glass splinters embedded in the glove.
Setting the transmission rate
Setting the transmission
rate At large distance between PC and Control Panel, the transmission rate of
the DDC file has to be limited. The DDC file is transmitted from the Control
Panel to the PC in order to transfer the display information like timing and
resolution.
Video BIOS The video bios of the graphic card or, using the on-board graphic, the video
bios of the motherboard contains the definition of the transmission rate for
the DDC file. This value has to be 50 kHz or less. Otherwise the screen is
not displayed or not until windows is started.
Windows Graphic Driver Windows graphic drivers also include a value for the transmission rate of
the DDC file.
If Windows is running and no image is displayed, then use a graphic driver
with a value of 50 kHz or less for DDC file transmission.
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