DICNET (English): Unterschied zwischen den Versionen
Reith (Diskussion | Beiträge) (Die Seite wurde neu angelegt: „DICNET® ('''D'''EUTSCHMANN-'''I'''ndustry-'''C'''ontroller-'''N'''et)is a multi-master Fieldbus. At the physical layer according to the ISO-OSI shift model it…“) |
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DICNET® ('''D'''EUTSCHMANN-'''I'''ndustry-'''C'''ontroller-'''N'''et)is a multi-master Fieldbus. At the physical layer according to the ISO-OSI shift model it corresponds to the DIN 19245, part 1. That means a connection between all participants in the net is established with an RS485-two-wire line.The physical arrangement is thus a bus system, at which the participants can be switched on and off as desired. | DICNET® ('''D'''EUTSCHMANN-'''I'''ndustry-'''C'''ontroller-'''N'''et)is a multi-master Fieldbus. At the physical layer according to the ISO-OSI shift model it corresponds to the DIN 19245, part 1. That means a connection between all participants in the net is established with an RS485-two-wire line.The physical arrangement is thus a bus system, at which the participants can be switched on and off as desired. | ||
From the logical point of view it is a token ring, that means that always only the participant who has the access authorization (token) is allowed to send to the bus. In case he does not have any data for another participants, then he passes on the token to that neighbour, who was determined during a configuration phase. | From the logical point of view it is a token ring, that means that always only the participant who has the access authorization (token) is allowed to send to the bus. In case he does not have any data for another participants, then he passes on the token to that neighbour, who was determined during a configuration phase. | ||
| − | + | Through this principle a deterministic bus cycle time is achieved, which means the time (worst-case) until a data packet can be sent is exactly calculable.In case a participant is turned on or off an automatic reconfiguration is made. The transmission baud rate is 312.5 kbaud at a length of 11 bit/Byte. | |
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'''maximal 16 Teilnehmer (Nockensteuerungen)''' an einem Bus betrieben werden, wobei Datenpakete von maximal 14 | '''maximal 16 Teilnehmer (Nockensteuerungen)''' an einem Bus betrieben werden, wobei Datenpakete von maximal 14 | ||
Byte pro Zyklus geschickt werden. | Byte pro Zyklus geschickt werden. | ||
Version vom 3. Juni 2014, 15:42 Uhr
DICNET® (DEUTSCHMANN-Industry-Controller-Net)is a multi-master Fieldbus. At the physical layer according to the ISO-OSI shift model it corresponds to the DIN 19245, part 1. That means a connection between all participants in the net is established with an RS485-two-wire line.The physical arrangement is thus a bus system, at which the participants can be switched on and off as desired. From the logical point of view it is a token ring, that means that always only the participant who has the access authorization (token) is allowed to send to the bus. In case he does not have any data for another participants, then he passes on the token to that neighbour, who was determined during a configuration phase. Through this principle a deterministic bus cycle time is achieved, which means the time (worst-case) until a data packet can be sent is exactly calculable.In case a participant is turned on or off an automatic reconfiguration is made. The transmission baud rate is 312.5 kbaud at a length of 11 bit/Byte.
Es können
maximal 16 Teilnehmer (Nockensteuerungen) an einem Bus betrieben werden, wobei Datenpakete von maximal 14 Byte pro Zyklus geschickt werden. Es erfolgt eine automatische Überprüfung der empfangenen Informationen und eine Fehlermeldung bei einem zweifachen Übertragungsfehler. Die maximale Ausdehnung des Netzes darf 500m nicht überschreiten. Es muss sichergestellt sein, dass ein sauberer Busabschluss an beiden Enden des Busses erfolgt um Übertragungsfehler zu vermeiden.
Verfügbarkeit
DICNET wird, neben dem Zubehör DICNET-Adapter, von allen Nockensteuerungen der Typen LOCON und ROTARNOCK sowie allen Bedieneinheiten des Typs TERM unterstützt, die mit einer RS485 (DICNET) Schnittstelle ausgestattet sind.
