Properties

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Manual > Control Reference > Data > Histrical data graph control >

Properties

Property Name

explanation

All common properties

For details, please refer to Common Properties.

 

 

Property Name

explanation

All Graph Properties

For details, see Plot graph control. (Excluding the AutoDeleteMode property)

 

 

Property Name

explanation

FormatNumber

The number format for displaying numbers on the Y-axis.

FormatDate

The date and time format to display dates on the x-axis.

FormatTime

The date and time format for displaying time on the x-axis.

FormatPowerfactorPlus

You can specify the sign of the Y-axis scale when the power factor is positive (default is blank).

 

example)

this.FormatPowerfactorPlus = "LEG";

 

FormatPowerfactorMinus

You can specify the sign of the Y-axis scale when the power factor is negative (default is "-").

 

example)

this.FormatPowerfactorMinus = "LEAD";

 

 

 

Property Name

explanation

HDSDataMax

Maximum number of data.

When a large amount of requested data exists, limiting the maximum number of data items prevents the system from temporarily stopping for a long period of time.

HDSRequestType

How the data is obtained.

RAWDATA

Get raw data where each row has the same time stamp. This is the normal setting.

MULTIRAWDATA

Get raw data where each field has a time and the number of data points varies for each field. If you want to display data stored in multiple databases or CSV files on one graph (for example, if you want to display data sources A01.F01 and A02.F01), specify this.

 

RealtimeUpdateMode

How to obtain data in real-time display mode.

NEW

Only HDSDataMax is displayed from the present (right side of the graph) to the past (left side of the graph).

OLD

Only HDSDataMax is displayed from the past (left side of the graph) to the present (right side of the graph).

ALL

Display all data. If there is more than HDSDataMax data, the server will be requested to receive the data multiple times, every HDSDataMax, until all the data is received. However, the request will stop at a maximum of UpdateCounterMax times.

 

example)

・If the data in the actual span is 100000, HDSDataMax is 10000, and UpdateCounterMax is 20

The data is requested to the server 10 times (100,000/10,000), and the screen is updated continuously until all the data (100,000 points) is finally displayed on the screen.

 

・If the data in the actual span is 100000, HDSDataMax is 10000, and UpdateCounterMax is 5

Because UpdateCounterMax is 5, the request will stop after 5 requests (10000x5=50000). Finally, half of the data (50000 points) will be displayed on the screen.

HistoricalUpdateMode

How to obtain data when in historical display mode.

OLD

Only HDSDataMax is displayed from the past (left side of the graph) to the present (right side of the graph).

ALL

Display all data. If there is more data than HDSDataMax, the server will be requested to receive the data in multiple instalments, each HDSDataMax, until all data has been received.

However, it will stop at a maximum of UpdateCounterMax times.

 

See RealtimeUpdateMode for an example.

UpdateCounterMax

The maximum number of times to request splitting when RealtimeUpdateMode/HistoricalUpdateMode is ALL and the requested data is equal to or greater than HDSDataMax.

See RealtimeUpdateMode for an example.

 

 

 

Property Name

explanation

All common properties (library)

For details, please refer to Common Properties (Library).