6-6
TP27, TP37 Equipment Manual
Release 01/00
6.1.2 Alarm Messages
Alarm messages have to be acknowledged on account of their ur-
gency. This can be done manually or automatically by the PLC.
To acknowledge an alarm message manually, simply touch the
ACK button in the alarm message window (figure 6-1 on page
6-4).
If the error messages should be acknowledged by the PLC, conti-
nue to read the Communication User’s Manual.
If several alarm messages are waiting to be displayed, the next
alarm message is displayed after one has been acknowledged.
Each message must be acknowledge in turn.
ACK
During configuration, several alarm messages can be combined to so called
acknowledgment groups. This means that by acknowledging the first alarm
message, e.g. the cause of the malfunction, all the remaining alarm messages in
the same acknowledgment group are acknowledged simultaneously (conse-
quential malfunctions) without them being issued in succession for acknowl-
edgment on the Touch Panel (group acknowledgment). Up to 16 acknowledg-
ment groups can be configured.
If alarm messages are not assigned to an acknowledgment group, only the mes-
sage currently displayed is acknowledged when more than one are waiting.
As soon as a alarm message arrives, an alarm message window is
opened and the message indicator shown here appears as a button
on the screen.
The message indicator can assume one of two states:
S flashing,
as soon as at least one unacknowledged alarm message is wait-
ing.
S not flashing,
when all waiting alarm messages have been acknowledged, but
at least one has not yet been cleared.
After touching the message indicator, the alarm message page ap-
pears.
The message indicator does not disappear until all acknowledged
alarm messages have been cleared. This means that a pending
alarm message is not forgotten.
Acknowledging
alarm messages
Acknowledgment
groups, group
acknowledgement
Message indicator
Messages
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