How to process 1 master to 2 slave #10

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1. CANopenNode commented on Sep 16, 2022

   

   CANopenNode

   on Sep 16, 2022

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   You can connect up to 127 devices on one cable. Make sure, you have 120ohm resistors on both sides of the cable. Each device has own node-id, also the "master".

   And don't think about CANopen as a master-slave protocol. It is more like conversation between devices, each with own task.
2. tuhai711 commented on Sep 17, 2022

   

   tuhai711

   on Sep 17, 2022

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   Yes. Thank you.
3. tuhai711

   closed this as completedon Sep 17, 2022
4. tuhai711

   reopened this on Sep 17, 2022
5. tuhai711 commented on Sep 17, 2022

   

   tuhai711

   on Sep 17, 2022

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   Hello again.
   How to know NodeID other from message received. I only use one node so i don't know if have 2 nodes more.
6. tuhai711 commented on Sep 17, 2022

   

   tuhai711

   on Sep 17, 2022

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   If I use node 1 receive PDO from 10 other nodes, I need define 10 RPDOs on node 1, that is right?
7. CANopenNode commented on Sep 17, 2022

   

   CANopenNode

   on Sep 17, 2022

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   Please read some literature about CANopen.
8. tuhai711 commented on Sep 19, 2022

   

   tuhai711

   on Sep 19, 2022

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   Hello,
   I've read a lot of about canopen. and i am using CANopenLinux as master to control 10 slaves (CANopenDemo). I use PDO for control slaves. because to receive message from slaves, master need to define 10 RPDO had COB-ID for each slave. Is that a good method?