pmcmahill

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Posts posted by pmcmahill

  2. Posted

    I have a purchased Machine that came with a Siemens LOGO 8.FSR PLC (Smart Relay). Generally we use Allen Bradley or Mitsubishi.

    Anyway, we need to communicate data between the LOGO and an Allen Bradley Compact Logix.  I do not desire to add an additional network to the AB but as best i can tell the LOGO is exclusively Modbus TCP/IP.

    Has anyone come across a similar situation?  I look online and did find an  Anybus module that claims to be able to link them together.  Looking for anyone who has faced this challenge and succeeded, or failed.

     

    Thanks

  17. Posted · Edited by pmcmahill

    We have been successful using the EIP4CCPU module in communicating Ethernet IP between Compact Logix And Mits Q PLC's. Always with the Allen Bradley as the master.

    However, we are presently trying to control a 520 PowerFlex VFD from the Q series as master.  Has anyone attempted this?

  20. Posted

    I am new to Siemens PLC and i am doing a project where i am using a S7-1214C (DC DC RLY) and i am adding a CM1243-5 ProfiBus module on the left side. I was told that i need to use a DPRD_DAT and DPWR_DAT command to interface with my Beckhoff field I/O.. I am confused for two reasons - (1) I can find no example of good answer on how to use this command to connect to my I/O. (2) Why do i need a program statement to read my Profibus I/o when there is a newtork setup feature in TIA V13. (am attaching a screen image of ProfiBus setup page) Anybody explpain this to me? Thanks

  21. Posted

    I am looking at a project that will require communication between a machine with a Rx3i controller and a machine that already has a Control Logix controller. I know the Rx3i has a Ethernet card available, but is it cable of communicating with EthernetIP protocol to a COntrol Logix?

  22. Posted

    I have Q02HCPU PLC talking to a ProFace GP2500 via RS232. I have the proface parameters set for 16 data registers. I can read the present value of the Proface clock. I have the value that I want the ProFace clock to be set to in the appropriate data registers. What do I do to trigger the ProFace to to update the clock from my PLC data registers?

  23. Posted · Edited by pmcmahill

    I have Q02HCPU PLC talking to a ProFace GP2500 via RS232. I have the proface parameters set for 16 data registers. I can read the present value of the Proface clock. I have the value that I want the ProFace clock to be set to in the appropriate data registers. What do I do to trigger the ProFace to to update the clock from my PLC data registers?

  24. Posted

    I have never done a GSV command, and I was not sure how much scan time it would eat up. I was also concerned if it would cause trouble with my ethernet communication. That is why I put in the conditional timer. However, eveb if I had not put the timer on the GSV, I would need to put a timer on the MSG. I would not want to send it a constant reset while it was in the act of reseting. Anyway, thanks for the advice. I may look at changing this in the future.

  25. Posted

    I have been trying to find out how to detect and auto-reset lost comm of my ethernet I/O interface modules. After several attempts and chit-chatting with others, we have found a semi-simple way to do this on the ControlLogix platform. I am attaching a PDF file showing what we did here. If anyone else has another solution, I would like to know. FYI - using a ENBT/A ethernet card and Phoenix FL IL 24 BK ETH/IP-PAC field Pat Ethernet_Auto_Reset.pdf