TiPlotChannelCustom.OPCUpdateRate

TiPlotChannelCustom

Used to set or get the requested OPC Update Rate of this channel.

property
OPCUpdateRate : Integer;

Description

Use the OPCUpdateRate property to set or get the Update Rate in milliseconds that is specified for this channel. The Update Rate is the desired update rate, though it depends on whether or not the OPC Server actually can support or will accept this rate, for updating the channel data with the OPC Server.

Data Update

A data point is added to the chart whenever data is received from an OPC Item specified b the OPCItemName property. The Y-Value is obtained from the incoming OPC Item data and the X-Value is obtained depending on the value specified for the OPCXValueSource property for the TiPlot component, and is specified by the OPC Server's TimeStamp for the TiXYPlot component.

Example

Delphi

iComponent.Channel[0].OPCUpdateRate := 100; //OPC Update Rate at 100ms

C++ Builder

iComponent->Channel[0]->OPCUpdateRate = 100; //OPC Update Rate at 100ms

Note: CLX Components do not support OPC Features.

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