MrPLC Member
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About Als

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  • Birthday 06/27/86

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  • Gender Male
  • Location Kiunga
  • Country Papua New Guinea
  • Interests Industrial Instrumentation and Process Control.
  1. Hello All, Thank you all for directing me towards resolving this very critical issue. Carefully following through your directions, I identified the faulty module, which was the Modbus TCP/IP Communication module (MVI69-MNET) on slot#12. Since nothing was connected to it, I simply removed the module and reset the processor. PLC is up and running now with no issues. Plant has been running now for the last 2 day.    This is a great forum with great people.  Thank you.
  2. This is the general layout of the modules in the panel. Thought of CPU failure but I saw on the I/O configuration pane, processor has active communication with two other units over ethernet. Only the I/O modules that the processor has lost communication with.
  3. Yes, I did save a copy but that was when the issue came up. Can I reload that same project file again?
  4. I did cycle the power. Moved mode selector switch on the processor from Remote to Program then to Run and back to remote. Run and Ok LEDs solid green but I/O Ok LED is blinking green and thus issue not resolved.  I totally powered down the unit, carefully separated the modules, inspected the cards and all connector pins in good condition. Carefully reseated them back and powered up. repeated the steps for mode selector switch. Still no luck as yet. Unfortunately, I don't have a up to date back file that I can reload. Thank you,
  5. We upgraded from SL5/05 running on RSLogix500. It has been running for about 2 years now. This just happened in the middle of the machine doing its normal cycle.
  6. Am using Version 30.011 of Studio 5000. My Process Laptop is 64 bit.
  7. Thank you. Please review screenshot attached. The Module connection fault is the same for all I/O modules.    
  8. Processor's "I/O OK" light is blinking green. Simulated by sending 4-20mA from field via process meter, not getting any change in values. Sending 24vdc in for discrete inputs, no activity in logic. Just checked I/O configuration tree and realized processor lost communication with all I/O modules. Will check physical connections and I/O config settings as well.  Is there any other possible causes for this I should look at? Thanks so much for your help.  
  9. Hi there, I have 1769-L33ER Allen Bradley processor suddenly stopped running the plant. No indication of faults. Processor running okay with OK and Run LEDs on. Did all basic troubleshooting steps but the issue still exist and I cannot run the plant. Connected on line and checked no faults exists in Fault Table. I did some simulation and found that Processor is not talking to the I/O modules. What could be the problem?   Thanks for your help.
  10. Thanks IO_Rack for the hint.
  11. Hello, I have a plant control system that is based on Allen Bradley L33-ER PLC with Allen Bradley Panel PC hosting Factory Talk Supervisory Edition for SCADA. The PLC is programmed using Studio 5000 version 30.00 and the panel HMI PC is programmed with FTView V8.10. Previously the PC system start-up procedure was fully automatic. When powered on, the computer launches the HMI application after windows has booted. HMI has Windows 7 OS. But after some experiences with sudden blackouts, the start up procedure is no longer automatic now. Automatic start up function somehow got disabled.  How do I enable this function again?   Thanks so much in advance for the help here.
  12. Thank you BobLfoot, My internet has been out for a while. Its fully restored now that I will post my issue here. Allen Bradley Panel PC is unable to automatically launch Factory Talk View SE HMI application when I restarted the PC after an unplanned power outage and the PC was not properly shut down. How do I restore that function so the next time I shut down and restart the PC, it should automatically launch the HMI application?   Thank you,
  13. Hi There, I have an issue with our control system which is based on an Allen-Bradley L33-ER PLC with Allen Bradley Panel PC hosting FactoryTalk View Supervisory Edition for SCADA. Should I post my issue here or where is the correct place/forum I can post my issue for help?   Thank you,
  14. LM90-30 Load Program from PLC to Programmer

    Thank you so much Steve Bailey. Will do this now and should get out of my issues here. Appreciate your help.