Messages - Siemens simatic hmi op27 Equipment Manual

Messages

Overview
Messages on the OP indicate events and statuses related to control processes. A
message consists of static text, at least. It may also contain tags.
The following types of message are displayed on the OP:
S
S
S
Once issued, alarm messages and event messages are stored on the OP in a
message buffer which is protected against a power failure. Messages in the
buffer can be called into the display and printed out on a connected printer. The
OP can still be operated when messages are waiting to be displayed.
Message states Alarm and event messages may contain the following information:
S
S
S
The OP records the exact time of the message states and indicates them when a
message page or message buffer is displayed.
OP27, OP37 Equipment Manual
Release 05/99
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event messages
alarm messages
system messages
Arrived:
Denotes the occurrence of a message.
Departed:
The reason for the message no longer exists.
Acknowledged (alarm messages only):
The message has been noted by the operator or the PLC, acknowledged and
confirmed.
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