摘要:
Die Erfindung stellt ein Adressierungsverfahren für Busteilnehmer eines Busses für Gebäudetechnikgeräte, insbesondere Betriebsgeräte für Leuchtmittel, bereit, wobei die Busteilnehmer über den Bus mit wenigstens einer Steuereinheit verbunden sind, aufweisend die Schritte: A.) die Busteilnehmer weisen sich jeweils intern eine zufällig erzeugte Adresse zu oder werden mit einer solchen von extern versehen, B.) die Steuereinheit führt eine Suche in einem Adresssuchraum durch und sendet ein Suchadresse, die den Adresssuchraum begrenzt, C.) jeder Busteilnehmer, dessen zufällig erzeugte Adresse in dem Adresssuchraum liegt, sendet auf das Signal hin eine Antwort an die Steuereinheit, D.) die Steuereinheit verkleinert den Adresssuchraum und führt die Schritte B.) bis D.) durch, bis im Schritt C.) nur ein Busteilnehmer antwortet. In Schritt C.) sendet jeder Busteilnehmer mit seiner Antwort seine Adresse oder eine Adressdifferenzinformation, die angibt, wie weit seine Adresse von der Suchadresse entfernt ist.
摘要:
The master device of Profibus DP according to the present disclosure automatically configures network by performing a communication with a plurality of slave devices connected through Profibus, the device including a Profibus communication module configured to perform a communication with a plurality of slave devices, an imaginary network configuration information storage configured to be stored in advance with imaginary network configuration information, a network configuration information storage configured to be stored with network configuration information, and a Profibus master state machine configured to obtain network configuration information by performing a communication with the plurality of slave devices in response to the imaginary network configuration information stored in the imaginary network configuration information storage, to store the obtained network configuration information in the network configuration information storage, and to perform a communication with the plurality of slave devices in response to the stored network configuration information.
摘要:
A dual orientation connector having a connector tab with first and second major opposing sides and a plurality of electrical contacts carried by the connector tab. The plurality of contacts includes a first set of external contacts formed at the first major side and a second set of external contacts formed at the second major side. Each individual contact in the first plurality of contacts is electrically connected within the tab or body to a corresponding contact in the second plurality of contacts. In some embodiments contacts in the first and second pluralities of contacts that are directly opposite each other are coupled together. In some other embodiments, contacts in the first and second pluralities of contacts that are in a cater cornered relationship with each other are coupled together. The first plurality of contacts are symmetrically spaced with the second plurality of contacts and the connector tab is shaped to have 180 degree symmetry so that it can be inserted and operatively coupled to a corresponding receptacle connector in either of two insertion orientations.
摘要:
A dual orientation connector having a connector tab with first and second major opposing sides and a plurality of electrical contacts carried by the connector tab. The plurality of contacts includes a first set of external contacts formed at the first major side and a second set of external contacts formed at the second major side. Each individual contact in the first plurality of contacts is electrically connected within the tab or body to a corresponding contact in the second plurality of contacts. In some embodiments contacts in the first and second pluralities of contacts that are directly opposite each other are coupled together. In some other embodiments, contacts in the first and second pluralities of contacts that are in a cater cornered relationship with each other are coupled together. The first plurality of contacts are symmetrically spaced with the second plurality of contacts and the connector tab is shaped to have 180 degree symmetry so that it can be inserted and operatively coupled to a corresponding receptacle connector in either of two insertion orientations.
摘要:
The invention deals with a physical layer circuit (21) for the IEEE1394 bus. Considered is a scenario where two clusters of 1394 devices are linked to each other by means of a wireless bridge (9). The devices of one cluster shall communicate with devices of the other cluster without being bridge aware. Under this scenario there are two different types of 1394 devices existing in each cluster. One device is a bridge portal and will have the bridge functionality. All the other 1394 devices in the cluster will not have the bridge functionality. As the device having the bridge functionality needs to have a specific buffer memory (22) for buffering node-ID packets, usually there are two different types of physical layer circuits required for the different types of 1394 devices. The invention deals with the problem of how it can be realized to use in both different types of 1394 devices the same type of physical layer circuit (21). The invention solves the problem by means of configuration means (24) in the physical layer circuit (21). These configuration means enable either to configure the physical layer circuit (21) as a bridge portal physical layer circuit supporting the bridge functionality by buffering said node-ID packets in said buffer memory (22) or else configuring the physical layer circuit (21) as a standard physical layer circuit that disables the buffering of said node-ID packets. The new type of physical layer circuit is pin compatible with a standard physical layer circuit.
摘要:
A method and a device for testing the service type. The method comprises the following steps: receiving the send routing information message to judge the service type of this call; and returning the send routing response information with the service type information of this call.
摘要:
According to the IEEE1394 bus protocol manage the mixed data transfer in one cycle it is specified that the bus nodes having only asochronous data to transfer need to wait with their transmission requests until the end of isochronous data transfers in the cycle indicated with a sub-action gap. The invention aims to improve the efficiency of data transport for the case that one of the bus nodes need to transfer isochronous data. The data link layer devices according to the invention includes means for checking whether isochronous data is to be transferred and if not they switch over to a no cycle master state, in which the local cycle synchronization events are ignored. The nodes need not wait for a sub-action gap after a local cycle event before drawing asynchronous transmission requests.
摘要:
A sector-based base station includes at least one of a shared transmission RF local oscillator TX_LO, a shared receiving RF local oscillator RX_LO, a shared digital signal processing unit, and a shared transmission feedback unit. A technical solution of sharing an intermediate RF unit circuit in the sector-based base station is adopted, so as to reduce the number of elements used in the circuit without sacrificing the communication capacity of the base station. As such, the reliability index of a single board is improved, and the system reliability is also enhanced. Meanwhile, the material cost and the time required for debugging are both reduced, thus lowering the cost of the base station.
摘要:
A display apparatus and a control method of a display apparatus to which a plurality of electronic devices is connected via a serial bus are provided. The control method includes: updating device information on the plurality of electronic devices if a reset signal is received; detecting an electronic device that generated the reset signal; displaying electronic device items corresponding to the plurality of connected electronic devices based on the updating device information on the plurality of electronic devices; and changing a display state of an electronic device item corresponding to the detected electronic device when the electronic device items are displayed. Thus, the present invention allows a user to efficiently recognize an electronic device generating a bus reset when the electronic device is connected to or disconnected from a network.