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EtherCAT and Ethernet

Bindu Ganesh
Expert 2220 points
Other Parts Discussed in Thread: AM3359

Hi

We are using ICE AM3359 , SDK 1.1.0.3 Ethercat application

We are trying to combine both EtherCAT and Web sever into single application

We assume it is possible to use EoE (Ethernet over EtherCAT) to send Ethernet packets to slave using EtherCAT network and LwIP application run on top of EoE layer of EtherCAT.

 f we make use of EOE for Web server application :

1)Execution of EtherCAT application and the EtherCAT Master connectivity with slave is needed?

2)If the EtherCAT Master slave connectivity is needed then EOE Communication can happen on other Ethernet PORT ( Not the one communicating with EtherCAT Master) or the same Ethernet PORT (One used by EtherCAT master).

 Regards,

Bindu

  • 0
    TI__Mastermind 44306 points

    Bindu,

    integrating a web server with the EtherCAT slave stack is a question for the vendor of the stack. EoE should be the basis for this. we haven't done this yet and so have no experience how well it would work. Apparently all Ethernet packets then will be embedded into EtherCAT packets and therefore throughput may be low - especially if you run high speed cyclic EtherCAT data at same time.

    On the questions:

    1) I don't understand this. Of course you need to run EtherCAT slave and master in this case. EtherCAT does not allow coexistence of normal Ethernet packets on same line.

    2) Just normal Ethernet on second port is not supported by TI EtherCAT ESC as we assume to have control over both ports. EoE does require EtherCAT connection anyway.

    Regards,

     

  • 0 in reply to Frank Walzer
    Expert 2220 points

    Hi Frank,

    Thanks for the reply.

    What we could understand is explained below :

    1)If we make use of EOE, then Ethercat application exection is a must ( that is there should be an EtherCAT Master and Slave connectivity)

    2)We can use the third ethernet port (Example IDK), the one which is not used for Ethercat communiction

    Regards,

    Bindu