About the Historical data server feature
In this chapter, we will explain the "Historical data server function", which is one of the four major functions of Summary Actions.
Summary actions support the Historical data server feature.
The Historical data server function allows the FA-Client to use historical data (logging data) and aggregated data created on the FA-Server side in response to a reference request from the client, FA-Client.
The trend graph screen of FA-Client connects to the summary action via the Historical data server function to display the graph.
Data Source Path
A data source path is a specified format used to identify the field name to reference for the Historical data server function.
The data source path for a summary action is:
action name.summary name::field name
The action name is the action name of the summary action on the FA-Server side. For example, if the action name is "Summary", it will be used as is, Summary.
For the summary name, specify the string on the right side of "::" in the definition string specified in the header of the root log section or the aggregation log section. For example, if the definition of the aggregation log section for daily report aggregation is [RAW::DAY], the summary name will be DAY.
For the field name, specify the name defined in the [Name] column of the tag field master or calculated field master.
Example of data source path:
Summary.RAW::T000 Summary.DAY::T000 Summary.MONTH::T000 Summary.YEAR::T000 Summary.AVERAGE::T000 |
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Be sure to specify half-width characters for the "." (period) and "::" (two colons) in the data source path. Also, be careful not to include any extra spaces. |
