BaseStation.ItemDescriber Namespace
CAS.CommServer.CommonBus Namespace
CAS.DataPorter.Configurator Namespace
CAS.Lib.CommonBus Namespace
CAS.Lib.CommonBus.ApplicationLayer Namespace
CAS.Lib.CommonBus.CommunicationLayer Namespace
CAS.Lib.CommonBus.CommunicationLayer.Generic Namespace
CAS.Lib.CommonBus.CommunicationLayer.Net Namespace
CAS.Lib.CommonBus.CommunicationLayer.NULL Namespace
CAS.Lib.CommonBus.CommunicationLayer.RS Namespace
CAS.Lib.CommonBus.Components Namespace
CAS.Lib.CommonBus.Management Namespace
CAS.Lib.CommonBus.Xml Namespace
CAS.Lib.DeviceSimulator Namespace
CAS.NetworkConfigLib Namespace
Object-Oriented Internet Process-Observer

IApplicationLayerMaster..::..ReadData Method

Reads process data from the selected location and device resources.

Namespace:  CAS.Lib.CommonBus.ApplicationLayer
Assembly:  CommServer.CommonBus (in CommServer.CommonBus.dll)

Syntax

AL_ReadData_Result ReadData(
	IBlockDescription pBlock,
	int pStation,
	out IReadValue pData,
	byte pRetries
)
Function ReadData ( _
	pBlock As IBlockDescription, _
	pStation As Integer, _
	<OutAttribute> ByRef pData As IReadValue, _
	pRetries As Byte _
) As AL_ReadData_Result
AL_ReadData_Result^ ReadData(
	IBlockDescription^ pBlock, 
	int^ pStation, 
	[OutAttribute] IReadValue^% pData, 
	unsigned char^ pRetries
)

Parameters

pBlock
Type: CAS.Lib.CommonBus.ApplicationLayer..::..IBlockDescription
IBlockDescription selecting the resource containing the data block to be read.
pStation
Type: Int32
Address of the remote station connected to the common field bus. –1 if not applicable.
pData
Type: CAS.Lib.CommonBus.ApplicationLayer..::..IReadValue%
The buffer IReadValue containing the requested data.
pRetries
Type: Byte
Number of retries to get data.

Return Value

Result of the operation

See Also

IApplicationLayerMaster Interface
CAS.Lib.CommonBus.ApplicationLayer Namespace