Siemens SIMATIC PCS 7 Function Manual page 58

OpenPCS 7 interface
6.5 OPC Alarms and Events (OPC A&E)
OPC OS message system
Area In PCS 7, an "area" is an area, a diagnostics area or an alarm hiding group. If there
is no area, no diagnostic area or no alarm hiding group configured for the message,
only the OPC area corresponding to the server prefix will be available.
Source Indicates the source of a message. The source has the format "<Server prefix>::Area
\Source". The server prefix of a local computer is "@LOCALMACHINE". The server
prefixes always show the top areas in the hierarchy of the server.
Time Issues a time stamp for received, sent and acknowledged messages. Issues a time
stamp in UTC (Universal Time Coordinated).
Type Indicates whether the event is a simple, tracking or condition-related event.
Severity Displays the priority of the message.
EventCategory Displays the message class. "Event Category" is made up of the "CategoryID" and
the "Category Description". "CategoryID" corresponds to the internal ID of the
message class. "Category Description" corresponds to the name of the message class.
Message Displays the message text of the corresponding message number.
Condition Displays the message type. The message types "Alarm", "Warning" and "Tolerance"
are combined and called "Level" in PCS 7.
Sub Condition Corresponds to the "Condition" parameter. In PCS 7, this is identical to Condition in
single state conditions. The following subconditions are mapped for the "Level"
multistate condition in PCS 7:
● Alarm low
● Alarm high
● Warning low
● Warning high
● Tolerance low
● Tolerance high
ChangeMask Specifies the change of the condition.
NewState Displays the current status of the condition.
ConditionQuality Displays the quality of the message.
For additional information about quality codes refer to the system manual
WinCC/Connectivity Pack .
AckRequired Indicates whether the message requires acknowledgment.
EventAttribute Lists the attributes required for this message.
Quality Indicates the quality code of the message.
Cookie Does not include any usable information for the client
ActorID Indicates which user acknowledged the message.
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Function Manual, 05/2012, A5E02780178-02
Event type
S, C, T
S, C, T
S, C, T
S, C, T
S, C, T
S, C, T
S, C, T
C
C
C
C
C
C
C
C
C
T
OpenPCS 7