pmcmahill

MrPLC Member
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Everything posted by pmcmahill

  1. 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?
  2. Controlling AB VFD over EIP from Mitsubishi

    Sounds like you already have the Mitsubishi setup as master and we had the AB as the master.  So not sure what to do here right now. I will look in my notes when we started and see what we did for the Mitsubishi in charge of the link.
  3. Controlling AB VFD over EIP from Mitsubishi

    On screen shot, the IP address in the EIP software should match IP Address in the AB Generic Bridge Configuration
  4. Controlling AB VFD over EIP from Mitsubishi

    Check with distributor.  EIP and CPU bundle cheaper than buying separately.
  5. Controlling AB VFD over EIP from Mitsubishi

    Let me start off by stating that when we talk between AB and Mits, we use the AB as the master. I can give more information tomorrow.
  6. Long ago i remember finding a way to change the online step number limit, which is defaulted to 500.  But it was probably 15 years ago, and i have forgotten how i did it.   Has anyone else found a way to change this?
  7. Changing Online Edit Step Number Limit

    Well, I am presently doing a project with a Q04UDVCPU, but I also have quite a few Q04UDHCPU's in plant.  We use GX Developer v8.116 and GX Works 2 v1.513. When I remember doing this was an earlier GX Developer and was a Q4A CPU
  8. Profibus I/O via CM1243-5 module

    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
  9. Rx3i - COntrol Logix via ethernet

    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?
  10. Mitsubishi Q and Proface GP2500

    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?
  11. Q PLC and ProFace HMI

    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?
  12. 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
  13. 3rd Party Ethernet Comm Error Detect and Reset

    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.
  14. I am relatively new to ControlLogix and have never done DH+ communication. I think I have figured out SLC to SLC, But I am having trouble with a ControlLogix Master and a PLC5 Slave. I have a good DH+ signal and am able to go online with the PLC5 via the DH+ link. What I am not sure of is how to set up the read - write messages in the Control Logix so that data is shared between the two. Any help would be appreciated!
  15. DH+ with ControlLogix Master / PLC 5 Slave

    Thanks ... that was helpful When I said Master / Slave, I was refering to the fact that the Control Logix was going to be doing the reading and the writing while the PLC5 was not going to have the read / write logic. Thanks for the info! Pat