Tapas Thakker

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Posts posted by Tapas Thakker

  5. Posted · Edited by Tapas Thakker
    delete files

    Yes Mark, The Controller slot is a part of the request path when a CIP connection is getting established.

    Have attached a log, 

    The issue is, when there is a Large Forward Open connection established with a Controller (Slot), and the server tries to establish another Large Forward Open with another Controller (Slot) it gets a connection failure

     

    That is the reason for trying to use different ports, but we are getting connection failure when trying to use port number 49152-65535

     

    Regards,

    Tapas

     

  6. Posted · Edited by Tapas Thakker

    Hi Mark,

    Thanks a lot for your help earlier, 

    Now we are trying to establish two separate TCP connections, this is because we have two CPU's on the same Rack and an EN2T card

    Is it possible to use port numbers other than 44818 to access data?

    Tried port number 49152-65535 range to test but it failed, giving a connection failure.

    Regards,

    Tapas

  10. Posted · Edited by Tapas Thakker

    I have attached the Wireshark log I got, don't know how the driver is configured but trying to figure out where the issue is.

     

    On 4/7/2020 at 9:28 PM, Mark- said:

    Repeat the actual WireShark capture file from register session to unregister session

    Don't know how to do it, but will try and get these logs if I can

     

    Thanks a lot for your help

  11. Posted · Edited by Tapas Thakker

    Thanks Mark,

    I have attached a screen capture of the Connection Manager trying to establish a connection of 2500 bytes.

    However, further investigations suggest the cap is not on the size as the comms again fell over for a request of 12 attributes which was around 210 bytes.

    I guess there is a limitation on the number of Multiple service packet requests? Don't seem to find where the problem is.

     

    Regards,

    Tapas

     

  12. Posted · Edited by Tapas Thakker

    Hello Guys,

    I am very new to CIP messaging and in our project, we are trying to Controllogix to SCADA server using CIP messaging:

    What I understand from the process right now is :

    1. SCADA Opens a connection for Large forward Open ( Connection size set at 2500 bytes)

    2. PLC responds and establishes a connection

    3. SCADA send an MSP request to access tags from PLC

    4. PLC responds to this request

    The problem we are facing is the PLC doesn't send out a response of more than 240 bytes,

    Have any of you guys have faced a similar issue or can help me with troubleshooting?

     

    Thanks in advance

    Attached screen captures from wire 

     

     

     

     

     

  14. Posted · Edited by Tapas Thakker

    Hi,

    I am new to Omron and trying to display a floating point number on NT20S display, have got an encoder which sends pulse on a HSC ( High Speed Counter) and I need to multiply that count by a factor (0.0253) and this display should be continuous, using a CPM1A controller

    What is the best way to implement this? 

    Thanks for help!!