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Schutzvermerk nach DIN 34 beachten CiA-Device object.

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Presentation on theme: "Schutzvermerk nach DIN 34 beachten CiA-Device object."— Presentation transcript:

1 Schutzvermerk nach DIN 34 beachten CiA-Device object

2 Schutzvermerk nach DIN 34 beachten Germany Honeywell Allen Bradley France CANopenSDSDevice NetSub MMS CMS similar MMS NMT DBT L7 L2 L1 ISO / DIS ISO / DIS 11898, different, incompatible Layer 7 specifications Application layer

3 Schutzvermerk nach DIN 34 beachten Model of a CAN node Application (z.B.measure temp.) Object list (Data, Configuration) CAN- Communication (data protocols) CAN Process data objects Service daten objects PDO-Protocols SDO-Protocols Sync-Protocols etc.

4 Schutzvermerk nach DIN 34 beachten CAN and CANopen: Process data objects (PDO) CAN CANopen CAN CANopen Producer Consumer PDO CANPDO CANopen PDO

5 Schutzvermerk nach DIN 34 beachten Identifier Data Process DataObject , 7, 99 Receive-Filter list Broadcast 4, 8 4, 16 11, 17 Station 1Station 2 Station 3Station 4 All stations monitor the line for messages with identifiers contained in their receive list CSMA/CA: Object orientated addressing =PDO

6 Schutzvermerk nach DIN 34 beachten SOFIdentifier ControlDATACRCHCKEOFRTR 8 ByteHD Station 1 Station 2 Station 3 Station 2 wants to set HIGH, other still pull to LOW -> good-bye Station 2 ! Station 1 wants to remain on HIGH signal, Station 3 pulls signal to LOW -> Station 1 is out of the game !..and the winner is: Station (1695 dez.) (1727 dez.) (1686 dez.) The lowest Identifier wins... All Stations send and listen simultaneously... Bus access with CSMA/CA (Dominant / Recessive)


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