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Glossary
TP 270, OP 270, MP 270B (WinCC flexible)
Operating Instructions, Edition 03/2004, 6AV6691-1DD01-0AB0
C-3
Flash memory
A memory with non-volatile memory chips which is used as a mobile storage medium in the
form of a memory card or installed permanently on the main board. The mobile storage
medium market is determined by Flash memories; CompactFlash and SmartMedia are
predominant.
CompactFlash (CF) and SmartMedia (SM) differ in their basic, inner design. In the case of
CF cards, the control electronics are in the card whereby, with SM cards, the control
electronics are installed in the associated device.
Function
A function is linked to an icon in the Control Panel or an operating element in the project.
Half brightness life
Time period after which the brightness of the lighting tube only achieves 50% of its original
value. The specified value depends on the operating temperature.
Hardcopy
Represents a printout of the current screen content on a connected printer.
Help text
Configurable information on objects in a project. The operator note concerning an alarm can,
for example, contain information on the cause of the fault and methods of elimination.
Image
A file which can be transferred from the configuration computer to the HMI device. The
image contains the operating system for the HMI device and parts of WinCC flexible runtime
required to run a project.
I/O field
The I/O field enables values to be entered or output on the HMI device which are then
transferred to the PLC.
Job mailbox
This triggers a function via the PLC.
Object
A component part of a project, e.g. a screen or alarm. Objects serve to display or enter texts
and values on the HMI device.