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Ethernet/IP and Nanodac

Is possible to communicate Nanodac with AB Micrologix 1100 over Ethernet Industrial Protocol? If yes, which mode does it accept: Client Tag, Client I/O or server? I bought nanodac plus Ethernet/IP module in firmware.
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  • Joe Clarke ( Product Specialist) December 18, 2012 13:28
    Paulo,

    The EtherNet/IP option in the nanodac supports both client/server functionality and is capable of reading/writing implicit inputs/outputs as well as explicit tags. To answer your question however; yes it is possible to communicate with an AB Micrologix PLC.

    On page 45 of the nanodac manual (Issue 6 June 12), talks a bit more in detail about setting up the EtherNet/IP functionality.
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  • I tried Client I/O (don't work and I found references on the web that this will not work with Micrologix 1100), also tried Client Tag mode and have the same problem, The diagnostic screen show me the PLC version etc but nanodac still in state Connection Failed!.

    Now I'm trying to send Explicit messages from the PLC to nanodac, the PLC ip address appears in the Explicit1 Channel but I can't read anything from Explicit1.

    I'm running firmware version 5.10. Can someone help me?
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  • Joe Clarke ( Product Specialist) December 18, 2012 14:04
    Paulo,

    Typically the PLC will act as the client and the nanodac will act as a server

    Client = Master
    Server = Slave

    Be sure you are setting up the nanodac correctly as you cannot have to clients talking to one another; one must be a client and one must be a server.

    Assuming you want the nanodac to be a server; set the Mode underneath the EtherNet/IP tab in iTools from IOClient to Server.

    Be sure you have the following settings in you AB

    Assembly instance & Size

    Input: 100 Size: 50
    Output: 112 Size: 50
    Configuration: 128 Size 0

    Be sure they are set to 16 bit and the response should be set to 1000mS. I believe AB defaults to 100. Once you do this, reset the comms on the nanodac by navigating to the EtherNet/IP page --> scroll to the diagnostics page and toggle the reset communications from No to Yes.

    If you have verified the IP address is set correctly and the nanodac is configured properly, you should at least see a handshake between the two devices. Once this is complete, you will need to set up the tags or data that you want to transfer between the two devices. I highly suggest reviewing the manual and if you continue to have issues; contact our technical support.
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  • Thanks for the fast reply Joe, I'll try again and double check all this configurations in the PLC. Later I'll post the results. Thank you again.
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  • I configured like you said, but no results at all. In the diagnostic screen it show the rotationg green circles but the PLC gives me an error message (Error code e0 (in upper byte of MGx:y.22) was returned by Comms module or CIP device). This error an inside the Ladder MSG Block. 0 messages sent with success.

    I'm just want to send integer variables to nanodac and then copy this variable to a virtual channel.
    I'm spending too much time on this problem and no solution till now. The Eurotherm Brazilian Distributor cannot help at all.
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  • Joe Clarke ( Product Specialist) December 18, 2012 19:13
    Paulo,

    On the EtherNet/IP diagnostic menu on the nanodac, what are you seeing? Can you take a picture of the screen so I can see the messages its indicating?
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  • Here's the picture
    imagebam.com
    We have:
    The top and left circles are rotating green. The rights' circle is static gray.
    192.168.1.250 (Nanodac ip address)
    192.168.1.254 (Micrologix 1100) shown under Explicit1
    I want to apologize by the pictures quality, it's a cellphone camera.

    Some screenshots from the PLC programming
    imagebam.com
    imagebam.com
    If I'm doing something wrong, let me know please.
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