Control file
94
Historical Server
There is one session control record in the file for each recording session. The
first view control record for the session follows immediately.
View control record
The view control record contains:
•
Record identifier (the word “view”)
•
View name
•
Name of the data file for the view
One view control record exists for each view defined on a recording session.
One or more data item control records that identify the data items in the view
follow each control record. Alarm control and filter control records are
interspersed between the data item control records as appropriate.
Data item control record
The data item control record contains:
•
Record identifier (the word “dataitem”).
•
Data item name.
•
Statistic type.
•
In sessions created from playback, the keyword
estimated
indicates a data
item whose values were obtained by estimation from data items in other
sessions.
One data item control record exists for each data item that appeared in the
current view’s definition. If alarms or filters or both are applied to the data item,
their control records follow that data item’s control record. All of the alarm
control records for the data item precede the filter control records for the same
data item.
Alarm control record
The alarm control record contains:
•
Record identifier (the word “alarm”)
Summary of Contents for 12.5.1
Page 1: ...User s Guide Historical Server 12 5 1...
Page 14: ...xiv Historical Server...
Page 46: ...Configuring multiple instances of Historical Server 32 Historical Server...
Page 56: ...Starting and stopping Historical Server on Windows NT 42 Historical Server...
Page 102: ...hs_terminate_recording 88 Historical Server...
