Siemens simatic hmi op27 Equipment Manual page 73

Messages
Meaning of
operating elements
6-20
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Only the operating elements of interest as regards messages are listed below.
See Chapter 11 for a description of the other fields and keys.
Message display
Message logging
Buffer overflow warning
ESC
S
FIRST
The oldest message is displayed first.
S
LAST
The most recent message is displayed first.
For a description refer to the Table on
page 6-13.
S
ON
A system message is issued when the
remaining buffer size is reached.
S
OFF
No message is issued when the remaining
buffer size is reached.
Exit from standard screen
OP27, OP37 Equipment Manual
Release 05/99