Operating the C7-613
5-6
C7-613 Control System
A5E00138934-03
Forced Change to the Message Level
The screen level is exited automatically as soon as a system message or fault
message is pending for display. The C7-613 then switches to the message level to
display such a message. This level cannot be exited as long as a system message
or an unacknowledged fault message is displayed. An unacknowledged fault
message is indicated at the C7-613 by flashing of the fault message.
A fault message is acknowledged by pressing the ENTER key or by setting the
corresponding bit in the acknowledgement area (see Section 4.6).
A system message is removed automatically after 2 s. In the case of operations
that take long, such as saving the event buffer, the message is removed after the
function is completed.
Once the fault message is acknowledged or the system message is removed, the
C7-613 returns to the point from which it branched to the message level.
In the case of operational messages, the screen level is not exited. To display an
operational message, you must change explicitly to the message level.
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