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: 15.0.2.11458
SyntaxC#
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.) |
See Also