INotifyDirectMemoryAccessService Interface

PLC memory client service for servers that can notify when memory changes.

Namespace: Demo3D.PLC.Comms.Memory
Assembly: PLC (in PLC.dll) Version: 19.00.00

Syntax

public interface INotifyDirectMemoryAccessService : IDirectMemoryAccessService

The INotifyDirectMemoryAccessService type exposes the following members.

Properties

	Name	Description
	AddressType	The type of address expected by this service. The type must implement IAddress. (Inherited from IDirectMemoryAccessService)
	CanSubscribe	Returns true if data changes can be subscribed to.
	PduSize	Get the PDU size (or -1). (Inherited from IDirectMemoryAccessService)
	RequestOverhead	A measure in bytes of the overhead of creating a new "read" request (or -1). (Inherited from IDirectMemoryAccessService)

Methods

	Name	Description
	AddDataChanged	Add a handler to respond to data changed events.
	GetPreferredAddress	Returns the preferred access to the address space. The underlying protocol may prefer the user to access more data than addressed. (Inherited from IDirectMemoryAccessService)
	GetPreferredParameters	Parameters to be applied to accesses. (Inherited from IDirectMemoryAccessService)
	GetRequiredAddress	Returns the required access to the address space. The underlying protocol may require the user to access more data than addressed. (Inherited from IDirectMemoryAccessService)
	InternalReadV	Vectored block read to the peer. (Inherited from IDirectMemoryAccessService)
	InternalWriteV	Vectored block write to the peer. (Inherited from IDirectMemoryAccessService)
	RemoveDataChanged	Remove a handler passed to AddDataChanged.

Extension Methods

	Name	Description
	ReadV	Vectored read request. (Defined by DirectMemoryAccessService)
	WriteV	Vectored write request. (Defined by DirectMemoryAccessService)