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AM3356, DLR(Device Level Ring), and Ethernet/IP

Hideaki Nambu
Mastermind 9165 points
Other Parts Discussed in Thread: AM3356

Hello,

Q1: Is DLR mandatory for Ethernet/IP ?

Q2: Is AM3356 good for DLR enabled Ethernet/IP products ?

My project is required to have a couple of Ethernet/IP port and support DLR. I think AM3356 would be the cheapest choice and it has PRU-ICSS. It seems to me no problem, but I would like to confirm here.

-n

  • 0
    TI__Guru**** 393215 points
    Hi,

    This is a good document that can address most of your questions: www.ti.com.cn/.../spry249a.pdf
  • 0 in reply to Biser Gatchev-XID
    Mastermind 9165 points

    Biser, I appreciate your reply.

    The pdf is good for beginners like me but does it answer ?

    Q1: Is DLR mandatory for Ethernet/IP ?

    • Do you mean the PDF implies the answer is 'yes' ?

    Q2: Is AM3356 good for DLR enabled Ethernet/IP products ?

    • I could not find my answer...

    -n

  • 0 in reply to Hideaki Nambu
    TI__Mastermind 43296 points

    Hideaki,

    DLR is not mandatory for Ethernet/IP. It can be enabled or disabled on the fly, see here:

    The Ethernet/IP on Industrial Communication SubSystem (ICSS) supports Beacon based DLR (Device Level Ring) node which is a ring redundancy protocol specified by ODVA, the main features of this implementation are

       -Supports 200 us beacon interval and 400 us beacon timeout interval

       -Supports learning table exception for Supervisor

       -Dynamic start and stop. User can enable or disable DLR on the fly

      -No user configuration required. The ring parameters get configured on their own.

    There is an EtherNet/IP adapter demo application based on Molex EtherNet/IP stack on top of NDK TCP/IP stack is included in the industrial SDK for AM335x.

    Regards, Garrett