The QKnxNetIpDeviceConfigurationRequestProxy::Builder class provides the means to create a KNXnet/IP device configuration request frame. 更多...
| QKnxNetIpFrame | create () const |
| Builder & | setCemi (const QKnxDeviceManagementFrame & cemi ) |
| Builder & | setChannelId (quint8 channelId ) |
| Builder & | setSequenceNumber (quint8 sequenceNumber ) |
A KNXnet/IP client connects to a configuration and management data endpoint of a KNXnet/IP server to send device configuration request frames and to receive device configuration acknowledgment frames. A device configuration request is used to read and write KNXnet/IP device configuration data. When a server receives a configuration request, it responds with a device configuration acknowledgment to confirm the reception of the request.
A device configuration request frame contains the ID of the communication channel between a KNXnet/IP client and server, the sequence number of the frame, and a common external message interface (cEMI) frame with the configuration message.
The KNXnet/IP server discards frames with unexpected sequence numbers and does not send a device configuration acknowledgment upon receiving them.
In most programs, this class will not be used directly. Instead, the QKnxNetIpTunnel or QKnxNetIpDeviceManagement class is used to establish a functional connection to a KNXnet/IP server.
The common way to create a device configuration request is:
QKnxDeviceManagementFrame cemi = // build cEMI frame auto netIpFrame = QKnxNetIpDeviceConfigurationRequestProxy::builder() .setChannelId(1) .setSequenceNumber(1) .setCemi(cemi) .create();
If the KNXnet/IP client does not receive a device configuration acknowledgment within the specified timeout or the status of a received acknowledgment frame indicates that errors occurred, the client repeats the request three times and then terminates the connection by sending a disconnection request, QKnxNetIpDisconnectRequestProxy , to the server’s control endpoint.
另请参阅 Qt KNX Device Management Classes .
Creates and returns a KNXnet/IP device configuration request frame.
注意： The returned frame may be invalid depending on the values used during setup.
另请参阅 isValid ().
Sets the cEMI frame that contains the device configuration message to cemi and returns a reference to the builder.
Sets the ID of the communication channel between a KNXnet/IP client and server to channelId and returns a reference to the builder.
Sets the sequence number of a device configuration request frame to sequenceNumber and returns a reference to the builder.
