7-3
Operator Panel OP3
Edition 11/99
The stand-by message is event message No. 0. It appears on the display when
the OP3 is working at message level and event messages or system messages
are not waiting. The stand-by message is stored in the firmware and contains,
by default, the release and the device type:
OP3 Vx.xx
2x20 char. 5mm
Figure 7-2 Default stand-by message
Depending on the configuration, the stand-by message can be represented by
other text. It can contain the date and time but not variables.
7.2 System Messages
System messages indicate operating states within the OP3. For example, they
draw your attention to maloperations or a breakdown in communication. This
message type has top display priority. If a corresponding fault occurs on the
OP3, the active event message is removed from the display and a system
message is issued in its place.
After the system message is removed from the screen, the OP3 returns to the
point from which it branched to message level.
System messages are classified as serious and non-serious system messages.
A serious system message is based on an error that can be rectified only by a
cold or warm restart of the OP3.
All other errors generate a non-serious system message – for example, when
you cannot choose a screen. Display of a non-serious system message can be
canceled by pressing ESCAPE. But it can also be canceled automatically
after a configured time.
A list of possible system messages and their explanations will be found in the
appendices.
Display of system messages (except for internal errors 7xx) is activated or
inhibited during configuration. This setting on the OP3 cannot be changed
later.
Stand-by message
Definition
Serious and
non-serious
system messages
Inhibiting system-
messages
Messa
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