Siemens simatic hmi op27 Equipment Manual page 56

Presentation Alarm messages and event messages can be configured so that text compo-
nents may be distinguished from the rest of the message text by flashing or
underlining.
Messages may contain text and tag fields. Tag fields display current PLC val-
ues in alphanumeric form.
Standby message
A sub–category of the event message is the standby message. The standby
message is the event message number 0. It is displayed when no other event
message is waiting to be displayed on the OP.
Display mode A current event or alarm message can be displayed in either a message line or
message window. One of the following combinations can be defined in the
configuration:
OP27, OP37 Equipment Manual
Release 05/99
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S
Window/window
Event messages and alarm mes-
sages are displayed in separate
windows.
The alarm message window is
opened automatically when an
alarm message arrives. When the
alarm message is acknowledged,
the alarm message window disap-
pears.
The event message window can
only be opened by pressing a con-
figured function key.
S
Window/line
An event message is displayed in
the message line, whereas an
alarm message is displayed in the
message window. The alarm mes-
sage window is opened automati-
cally when an alarm message
occurs. When an alarm message
is acknowledged, the alarm mes-
sage window disappears if no
other alarm messages are waiting.
S
Window/hide
An alarm message is displayed in
the message window. Event mes-
sages are not displayed.
When the alarm message is
acknowledged, the alarm message
window is closed.
Messages
Event message window
Alarm message window
Message line
Alarm message window
Alarm message window
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