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Glossary
AS 511
Protocol of the programming device interface of a SIMATIC S5 controller
Boot loader
Used to start the operating system. Automatically started when the HMI device is switched
on. A start screen appears during startup. After the operating system has been loaded, the
Loader opens.
Configuration computer
General term for programming devices (PGs) and PCs on which plant projects are created
using an engineering software.
Control request
Triggers a function via the controller.
Controller
General term for devices and systems with which the HMI device communicates, e.g.
SIMATIC S7.
Display duration
Defines whether and how long a system alarm is displayed on the HMI device.
EMC
Electromagnetic compatibility is the ability of electrical equipment to function properly in its
electromagnetic environment without influencing this environment.
Engineering software
Software for the creation of projects for process visualization – see also project, process
visualization and runtime software
Event
Functions are triggered by defined incoming events. Events can be configured. Events which
can be assigned to a button include "Press" and "Release", for example.
Fault time
Refers to the time interval between an activated and deactivated alarm.
178
OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
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